Remove testing data

1 files changed, 0 insertions, 1565 deletions

diff --git a/examples/redis-unstable/src/sds.c b/examples/redis-unstable/src/sds.c
deleted file mode 100644
index 06f16cf..0000000
--- a/examples/redis-unstable/src/sds.c
+++ /dev/null
@@ -1,1565 +0,0 @@
-/* SDSLib 2.0 -- A C dynamic strings library
- *
- * Copyright (c) 2006-Present, Redis Ltd.
- * All rights reserved.
- * 
- * Copyright (c) 2024-present, Valkey contributors.
- * All rights reserved.
- * 
- * Licensed under your choice of (a) the Redis Source Available License 2.0
- * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the
- * GNU Affero General Public License v3 (AGPLv3).
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <limits.h>
-#include "redisassert.h"
-#include "sds.h"
-#include "sdsalloc.h"
-#include "util.h"
-
-const char *SDS_NOINIT = "SDS_NOINIT";
-
-/* Returns the minimum SDS type required to store a string of the given length.
- * 
- * Previously, the SDS type was determined solely by the logical string
- * length, ignoring header size, which could lead to inconsistencies. If the 
- * allocated buffer was larger than the maximum size supported by a type, `alloc` 
- * would be truncated, creating a mismatch between `alloc` and the actual buffer size.
- */
-char sdsReqType(size_t string_size) {
-    if (string_size < 1 << 5) return SDS_TYPE_5;
-    if (string_size <= (1 << 8) - sizeof(struct sdshdr8) - 1) return SDS_TYPE_8;
-    if (string_size <= (1 << 16) - sizeof(struct sdshdr16) - 1) return SDS_TYPE_16;
-#if (LONG_MAX == LLONG_MAX)
-    if (string_size <= (1ll << 32) - sizeof(struct sdshdr32) - 1) return SDS_TYPE_32;
-    return SDS_TYPE_64;
-#else
-    return SDS_TYPE_32;
-#endif
-}
-
-static inline size_t sdsTypeMaxSize(char type) {
-    if (type == SDS_TYPE_5)
-        return (1<<5) - 1;
-    if (type == SDS_TYPE_8)
-        return (1<<8) - 1;
-    if (type == SDS_TYPE_16)
-        return (1<<16) - 1;
-#if (LONG_MAX == LLONG_MAX)
-    if (type == SDS_TYPE_32)
-        return (1ll<<32) - 1;
-#endif
-    return -1; /* this is equivalent to the max SDS_TYPE_64 or SDS_TYPE_32 */
-}
-
-/* 
- * Adjusts the SDS type if the allocated buffer size exceeds the maximum size 
- * addressable by the current type.
- *
- * The SDS type is initially determined based on the logical length of the string. 
- * However, allocators like jemalloc may return a buffer larger than requested, 
- * potentially exceeding the maximum size the selected SDS type can handle. This 
- * can cause a mismatch between the `alloc` field and the actual buffer size, 
- * leading to wasted memory and possible inconsistencies.
- *
- * This function ensures that the SDS type is selected based on the actual buffer 
- * size rather than just the logical length. If the buffer size supports a larger 
- * SDS type, it updates `type` and `hdrlen` accordingly.
- *
- * Returns 1 if the type was adjusted, 0 otherwise.
- */
-static inline int adjustTypeIfNeeded(char *type, int *hdrlen, size_t bufsize) {
-    size_t usable = bufsize - *hdrlen - 1;
-    if (*type != SDS_TYPE_5 && usable > sdsTypeMaxSize(*type)) {
-        *type = sdsReqType(usable);
-        *hdrlen = sdsHdrSize(*type);
-        return 1;
-    }
-    return 0;
-}
-
-/* Create a new sds string with the content specified by the 'init' pointer
- * and 'initlen'.
- * If NULL is used for 'init' the string is initialized with zero bytes.
- * If SDS_NOINIT is used, the buffer is left uninitialized;
- *
- * The string is always null-terminated (all the sds strings are, always) so
- * even if you create an sds string with:
- *
- * mystring = sdsnewlen("abc",3);
- *
- * You can print the string with printf() as there is an implicit \0 at the
- * end of the string. However the string is binary safe and can contain
- * \0 characters in the middle, as the length is stored in the sds header. */
-sds _sdsnewlen(const void *init, size_t initlen, int trymalloc) {
-    void *sh;
-
-    char type = sdsReqType(initlen);
-    /* Empty strings are usually created in order to append. Use type 8
-     * since type 5 is not good at this. */
-    if (type == SDS_TYPE_5 && initlen == 0) type = SDS_TYPE_8;
-    int hdrlen = sdsHdrSize(type);
-    size_t bufsize;
-
-    assert(initlen + hdrlen + 1 > initlen); /* Catch size_t overflow */
-    sh = trymalloc?
-        s_trymalloc_usable(hdrlen+initlen+1, &bufsize) :
-        s_malloc_usable(hdrlen+initlen+1, &bufsize);
-    if (sh == NULL) return NULL;
-
-    adjustTypeIfNeeded(&type, &hdrlen, bufsize);
-    return sdsnewplacement(sh, bufsize, type, init, initlen);
-}
-
-/* Initializes an SDS within pre-allocated buffer. Like, placement new in C++. 
- * 
- * Parameters:
- * - `buf`    : A pre-allocated buffer for the SDS.
- * - `bufsize`: Total size of the buffer (>= `sdsReqSize(initlen, type)`). Can use 
- *              a larger `bufsize` than required, but usable size won't be greater 
- *              than `sdsTypeMaxSize(type)`. 
- * - `type`   : The SDS type. Can assist `sdsReqType(length)` to compute the type.
- * - `init`   : Initial string to copy, or `SDS_NOINIT` to skip initialization.
- * - `initlen`: Length of the initial string.
- * 
- * Returns:
- * - A pointer to the SDS inside `buf`. 
- */
-sds sdsnewplacement(char *buf, size_t bufsize, char type, const char *init, size_t initlen) {
-    assert(bufsize >= sdsReqSize(initlen, type));
-    int hdrlen = sdsHdrSize(type);
-    size_t usable = bufsize - hdrlen - 1;
-    sds s = buf + hdrlen;
-    unsigned char *fp = ((unsigned char *)s) - 1; /* flags pointer. */
-
-    switch(type) {
-        case SDS_TYPE_5: {
-            *fp = type | (initlen << SDS_TYPE_BITS);
-            break;
-        }
-        case SDS_TYPE_8: {
-            SDS_HDR_VAR(8,s);
-            sh->len = initlen;
-            debugAssert(usable <= sdsTypeMaxSize(type));
-            sh->alloc = usable;
-            *fp = type;
-            break;
-        }
-        case SDS_TYPE_16: {
-            SDS_HDR_VAR(16,s);
-            sh->len = initlen;
-            debugAssert(usable <= sdsTypeMaxSize(type));
-            sh->alloc = usable;
-            *fp = type;
-            break;
-        }
-        case SDS_TYPE_32: {
-            SDS_HDR_VAR(32,s);
-            sh->len = initlen;
-            debugAssert(usable <= sdsTypeMaxSize(type));
-            sh->alloc = usable;
-            *fp = type;
-            break;
-        }
-        case SDS_TYPE_64: {
-            SDS_HDR_VAR(64,s);
-            sh->len = initlen;
-            debugAssert(usable <= sdsTypeMaxSize(type));
-            sh->alloc = usable;
-            *fp = type;
-            break;
-        }
-    }
-    if (init == SDS_NOINIT)
-        init = NULL;
-    else if (!init)
-        memset(s, 0, initlen);
-    else if (initlen) 
-        memcpy(s, init, initlen);
-
-    s[initlen] = '\0';
-    return s;
-}
-
-sds sdsnewlen(const void *init, size_t initlen) {
-    return _sdsnewlen(init, initlen, 0);
-}
-
-sds sdstrynewlen(const void *init, size_t initlen) {
-    return _sdsnewlen(init, initlen, 1);
-}
-
-/* Create an empty (zero length) sds string. Even in this case the string
- * always has an implicit null term. */
-sds sdsempty(void) {
-    return sdsnewlen("",0);
-}
-
-/* Create a new sds string starting from a null terminated C string. */
-sds sdsnew(const char *init) {
-    size_t initlen = (init == NULL) ? 0 : strlen(init);
-    return sdsnewlen(init, initlen);
-}
-
-/* Duplicate an sds string. */
-sds sdsdup(const sds s) {
-    return sdsnewlen(s, sdslen(s));
-}
-
-/* Free an sds string. No operation is performed if 's' is NULL. */
-void sdsfree(sds s) {
-    if (s == NULL) return;
-    s_free((char*)s-sdsHdrSize(s[-1]));
-}
-
-void sdsfreeusable(sds s, size_t *usable) {
-    if (s == NULL) return;
-    s_free_usable((char*)s-sdsHdrSize(s[-1]), usable);
-}
-
-/* Generic version of sdsfree. */
-void sdsfreegeneric(void *s) {
-    sdsfree((sds)s);
-}
-
-/* Set the sds string length to the length as obtained with strlen(), so
- * considering as content only up to the first null term character.
- *
- * This function is useful when the sds string is hacked manually in some
- * way, like in the following example:
- *
- * s = sdsnew("foobar");
- * s[2] = '\0';
- * sdsupdatelen(s);
- * printf("%d\n", sdslen(s));
- *
- * The output will be "2", but if we comment out the call to sdsupdatelen()
- * the output will be "6" as the string was modified but the logical length
- * remains 6 bytes. */
-void sdsupdatelen(sds s) {
-    size_t reallen = strlen(s);
-    sdssetlen(s, reallen);
-}
-
-/* Modify an sds string in-place to make it empty (zero length).
- * However all the existing buffer is not discarded but set as free space
- * so that next append operations will not require allocations up to the
- * number of bytes previously available. */
-void sdsclear(sds s) {
-    sdssetlen(s, 0);
-    s[0] = '\0';
-}
-
-/* Enlarge the free space at the end of the sds string so that the caller
- * is sure that after calling this function can overwrite up to addlen
- * bytes after the end of the string, plus one more byte for nul term.
- * If there's already sufficient free space, this function returns without any
- * action, if there isn't sufficient free space, it'll allocate what's missing,
- * and possibly more:
- * When greedy is 1, enlarge more than needed, to avoid need for future reallocs
- * on incremental growth.
- * When greedy is 0, enlarge just enough so that there's free space for 'addlen'.
- *
- * Note: this does not change the *length* of the sds string as returned
- * by sdslen(), but only the free buffer space we have. */
-sds _sdsMakeRoomFor(sds s, size_t addlen, int greedy) {
-    void *sh, *newsh;
-    size_t avail = sdsavail(s);
-    size_t len, newlen, reqlen;
-    char type, oldtype = sdsType(s);
-    int hdrlen;
-    size_t bufsize, usable;
-    int use_realloc;
-
-    /* Return ASAP if there is enough space left. */
-    if (avail >= addlen) return s;
-
-    len = sdslen(s);
-    sh = (char*)s-sdsHdrSize(oldtype);
-    reqlen = newlen = (len+addlen);
-    assert(newlen > len);   /* Catch size_t overflow */
-    if (greedy == 1) {
-        if (newlen < SDS_MAX_PREALLOC)
-            newlen *= 2;
-        else
-            newlen += SDS_MAX_PREALLOC;
-    }
-
-    type = sdsReqType(newlen);
-
-    /* Don't use type 5: the user is appending to the string and type 5 is
-     * not able to remember empty space, so sdsMakeRoomFor() must be called
-     * at every appending operation. */
-    if (type == SDS_TYPE_5) type = SDS_TYPE_8;
-
-    hdrlen = sdsHdrSize(type);
-    assert(hdrlen + newlen + 1 > reqlen);  /* Catch size_t overflow */
-    use_realloc = (oldtype == type);
-    if (use_realloc) {
-        newsh = s_realloc_usable(sh, hdrlen + newlen + 1, &bufsize, NULL);
-        if (newsh == NULL) return NULL;
-        s = (char*)newsh + hdrlen;
-        if (adjustTypeIfNeeded(&type, &hdrlen, bufsize)) {
-            memmove((char *)newsh + hdrlen, s, len + 1);
-            s = (char *)newsh + hdrlen;
-            s[-1] = type;
-            sdssetlen(s, len);
-        }
-    } else {
-        /* Since the header size changes, need to move the string forward,
-         * and can't use realloc */
-        newsh = s_malloc_usable(hdrlen + newlen + 1, &bufsize);
-        if (newsh == NULL) return NULL;
-        adjustTypeIfNeeded(&type, &hdrlen, bufsize);
-        memcpy((char*)newsh+hdrlen, s, len+1);
-        s_free(sh);
-        s = (char*)newsh+hdrlen;
-        s[-1] = type;
-        sdssetlen(s, len);
-    }
-    usable = bufsize - hdrlen - 1;
-    assert(type == SDS_TYPE_5 || usable <= sdsTypeMaxSize(type));
-    sdssetalloc(s, usable);
-    return s;
-}
-
-/* Enlarge the free space at the end of the sds string more than needed,
- * This is useful to avoid repeated re-allocations when repeatedly appending to the sds. */
-sds sdsMakeRoomFor(sds s, size_t addlen) {
-    return _sdsMakeRoomFor(s, addlen, 1);
-}
-
-/* Unlike sdsMakeRoomFor(), this one just grows to the necessary size. */
-sds sdsMakeRoomForNonGreedy(sds s, size_t addlen) {
-    return _sdsMakeRoomFor(s, addlen, 0);
-}
-
-/* Reallocate the sds string so that it has no free space at the end. The
- * contained string remains not altered, but next concatenation operations
- * will require a reallocation.
- *
- * After the call, the passed sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call. */
-sds sdsRemoveFreeSpace(sds s, int would_regrow) {
-    return sdsResize(s, sdslen(s), would_regrow);
-}
-
-/* Resize the allocation, this can make the allocation bigger or smaller,
- * if the size is smaller than currently used len, the data will be truncated.
- *
- * When the would_regrow argument is set to 1, it prevents the use of
- * SDS_TYPE_5, which is desired when the sds is likely to be changed again.
- *
- * The sdsAlloc size will be set to the requested size regardless of the actual
- * allocation size, this is done in order to avoid repeated calls to this
- * function when the caller detects that it has excess space. */
-sds sdsResize(sds s, size_t size, int would_regrow) {
-    void *sh, *newsh = NULL;
-    char type, oldtype = sdsType(s);
-    int hdrlen, oldhdrlen = sdsHdrSize(oldtype);
-    size_t len = sdslen(s);
-    sh = (char*)s-oldhdrlen;
-
-    /* Return ASAP if the size is already good. */
-    if (sdsalloc(s) == size) return s;
-
-    /* Truncate len if needed. */
-    if (size < len) len = size;
-
-    /* Check what would be the minimum SDS header that is just good enough to
-     * fit this string. */
-    type = sdsReqType(size);
-    if (would_regrow) {
-        /* Don't use type 5, it is not good for strings that are expected to grow back. */
-        if (type == SDS_TYPE_5) type = SDS_TYPE_8;
-    }
-    hdrlen = sdsHdrSize(type);
-
-    /* If the type is the same, or can hold the size in it with low overhead
-     * (larger than SDS_TYPE_8), we just realloc(), letting the allocator
-     * to do the copy only if really needed. Otherwise if the change is
-     * huge, we manually reallocate the string to use the different header
-     * type. */
-    int use_realloc = (oldtype==type || (type < oldtype && type > SDS_TYPE_8));
-    size_t newlen = use_realloc ? oldhdrlen+size+1 : hdrlen+size+1;
-    size_t bufsize = 0;
-    size_t newsize;
-
-    if (use_realloc) {
-        int alloc_already_optimal = 0;
-        #if defined(USE_JEMALLOC)
-            /* je_nallocx returns the expected allocation size for the newlen.
-             * We aim to avoid calling realloc() when using Jemalloc if there is no
-             * change in the allocation size, as it incurs a cost even if the
-             * allocation size stays the same. */
-        bufsize = sdsAllocSize(s);
-        alloc_already_optimal = (je_nallocx(newlen, 0) == bufsize);
-        #endif
-        if (!alloc_already_optimal) {
-            newsh = s_realloc_usable(sh, newlen, &bufsize, NULL);
-            if (newsh == NULL) return NULL;
-            s = (char *)newsh + oldhdrlen;
-
-            if (adjustTypeIfNeeded(&oldtype, &oldhdrlen, bufsize)) {
-                memmove((char *)newsh + oldhdrlen, s, len + 1);
-                s = (char *)newsh + oldhdrlen;
-                s[-1] = oldtype;
-                sdssetlen(s, len);
-            }
-        }
-        newsize = bufsize - oldhdrlen - 1;
-        debugAssert(oldtype == SDS_TYPE_5 || newsize <= sdsTypeMaxSize(oldtype));
-    } else {
-        newsh = s_malloc_usable(newlen, &bufsize);
-        if (newsh == NULL) return NULL;
-        adjustTypeIfNeeded(&type, &hdrlen, bufsize);
-        memcpy((char *)newsh + hdrlen, s, len + 1);
-        s_free(sh);
-        s = (char *)newsh + hdrlen;
-        s[-1] = type;
-        newsize = bufsize - hdrlen - 1;
-        debugAssert(type == SDS_TYPE_5 || newsize <= sdsTypeMaxSize(type));
-    }
-    s[len] = 0;
-    sdssetlen(s, len);
-    sdssetalloc(s, newsize);
-    return s;
-}
-
-/* Return the pointer of the actual SDS allocation (normally SDS strings
- * are referenced by the start of the string buffer). */
-void *sdsAllocPtr(sds s) {
-    return (void*) (s-sdsHdrSize(s[-1]));
-}
-
-/* Increment the sds length and decrements the left free space at the
- * end of the string according to 'incr'. Also set the null term
- * in the new end of the string.
- *
- * This function is used in order to fix the string length after the
- * user calls sdsMakeRoomFor(), writes something after the end of
- * the current string, and finally needs to set the new length.
- *
- * Note: it is possible to use a negative increment in order to
- * right-trim the string.
- *
- * Usage example:
- *
- * Using sdsIncrLen() and sdsMakeRoomFor() it is possible to mount the
- * following schema, to cat bytes coming from the kernel to the end of an
- * sds string without copying into an intermediate buffer:
- *
- * oldlen = sdslen(s);
- * s = sdsMakeRoomFor(s, BUFFER_SIZE);
- * nread = read(fd, s+oldlen, BUFFER_SIZE);
- * ... check for nread <= 0 and handle it ...
- * sdsIncrLen(s, nread);
- */
-void sdsIncrLen(sds s, ssize_t incr) {
-    size_t len;
-    switch(sdsType(s)) {
-        case SDS_TYPE_5: {
-            unsigned char *fp = ((unsigned char*)s)-1;
-            unsigned char oldlen = SDS_TYPE_5_LEN(s);
-            assert((incr > 0 && oldlen+incr < 32) || (incr < 0 && oldlen >= (unsigned int)(-incr)));
-            *fp = SDS_TYPE_5 | ((oldlen+incr) << SDS_TYPE_BITS);
-            len = oldlen+incr;
-            break;
-        }
-        case SDS_TYPE_8: {
-            SDS_HDR_VAR(8,s);
-            assert((incr >= 0 && sh->alloc-sh->len >= incr) || (incr < 0 && sh->len >= (unsigned int)(-incr)));
-            len = (sh->len += incr);
-            break;
-        }
-        case SDS_TYPE_16: {
-            SDS_HDR_VAR(16,s);
-            assert((incr >= 0 && sh->alloc-sh->len >= incr) || (incr < 0 && sh->len >= (unsigned int)(-incr)));
-            len = (sh->len += incr);
-            break;
-        }
-        case SDS_TYPE_32: {
-            SDS_HDR_VAR(32,s);
-            assert((incr >= 0 && sh->alloc-sh->len >= (unsigned int)incr) || (incr < 0 && sh->len >= (unsigned int)(-incr)));
-            len = (sh->len += incr);
-            break;
-        }
-        case SDS_TYPE_64: {
-            SDS_HDR_VAR(64,s);
-            assert((incr >= 0 && sh->alloc-sh->len >= (uint64_t)incr) || (incr < 0 && sh->len >= (uint64_t)(-incr)));
-            len = (sh->len += incr);
-            break;
-        }
-        default: len = 0; /* Just to avoid compilation warnings. */
-    }
-    s[len] = '\0';
-}
-
-/* Grow the sds to have the specified length. Bytes that were not part of
- * the original length of the sds will be set to zero.
- *
- * if the specified length is smaller than the current length, no operation
- * is performed. */
-sds sdsgrowzero(sds s, size_t len) {
-    size_t curlen = sdslen(s);
-
-    if (len <= curlen) return s;
-    s = sdsMakeRoomFor(s,len-curlen);
-    if (s == NULL) return NULL;
-
-    /* Make sure added region doesn't contain garbage */
-    memset(s+curlen,0,(len-curlen+1)); /* also set trailing \0 byte */
-    sdssetlen(s, len);
-    return s;
-}
-
-/* Append the specified binary-safe string pointed by 't' of 'len' bytes to the
- * end of the specified sds string 's'.
- *
- * After the call, the passed sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call. */
-sds sdscatlen(sds s, const void *t, size_t len) {
-    size_t curlen = sdslen(s);
-
-    s = sdsMakeRoomFor(s,len);
-    if (s == NULL) return NULL;
-    memcpy(s+curlen, t, len);
-    sdssetlen(s, curlen+len);
-    s[curlen+len] = '\0';
-    return s;
-}
-
-/* Append the specified null terminated C string to the sds string 's'.
- *
- * After the call, the passed sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call. */
-sds sdscat(sds s, const char *t) {
-    return sdscatlen(s, t, strlen(t));
-}
-
-/* Append the specified sds 't' to the existing sds 's'.
- *
- * After the call, the modified sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call. */
-sds sdscatsds(sds s, const sds t) {
-    return sdscatlen(s, t, sdslen(t));
-}
-
-/* Destructively modify the sds string 's' to hold the specified binary
- * safe string pointed by 't' of length 'len' bytes. */
-sds sdscpylen(sds s, const char *t, size_t len) {
-    if (sdsalloc(s) < len) {
-        s = sdsMakeRoomFor(s,len-sdslen(s));
-        if (s == NULL) return NULL;
-    }
-    memcpy(s, t, len);
-    s[len] = '\0';
-    sdssetlen(s, len);
-    return s;
-}
-
-/* Like sdscpylen() but 't' must be a null-terminated string so that the length
- * of the string is obtained with strlen(). */
-sds sdscpy(sds s, const char *t) {
-    return sdscpylen(s, t, strlen(t));
-}
-
-/* Create an sds string from a long long value. It is much faster than:
- *
- * sdscatprintf(sdsempty(),"%lld\n", value);
- */
-sds sdsfromlonglong(long long value) {
-    char buf[LONG_STR_SIZE];
-    int len = ll2string(buf,sizeof(buf),value);
-
-    return sdsnewlen(buf,len);
-}
-
-/* Like sdscatprintf() but gets va_list instead of being variadic. */
-sds sdscatvprintf(sds s, const char *fmt, va_list ap) {
-    va_list cpy;
-    char staticbuf[1024], *buf = staticbuf, *t;
-    size_t buflen = strlen(fmt)*2;
-    int bufstrlen;
-
-    /* We try to start using a static buffer for speed.
-     * If not possible we revert to heap allocation. */
-    if (buflen > sizeof(staticbuf)) {
-        buf = s_malloc(buflen);
-        if (buf == NULL) return NULL;
-    } else {
-        buflen = sizeof(staticbuf);
-    }
-
-    /* Alloc enough space for buffer and \0 after failing to
-     * fit the string in the current buffer size. */
-    while(1) {
-        va_copy(cpy,ap);
-        bufstrlen = vsnprintf(buf, buflen, fmt, cpy);
-        va_end(cpy);
-        if (bufstrlen < 0) {
-            if (buf != staticbuf) s_free(buf);
-            return NULL;
-        }
-        if (((size_t)bufstrlen) >= buflen) {
-            if (buf != staticbuf) s_free(buf);
-            buflen = ((size_t)bufstrlen) + 1;
-            buf = s_malloc(buflen);
-            if (buf == NULL) return NULL;
-            continue;
-        }
-        break;
-    }
-
-    /* Finally concat the obtained string to the SDS string and return it. */
-    t = sdscatlen(s, buf, bufstrlen);
-    if (buf != staticbuf) s_free(buf);
-    return t;
-}
-
-/* Append to the sds string 's' a string obtained using printf-alike format
- * specifier.
- *
- * After the call, the modified sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call.
- *
- * Example:
- *
- * s = sdsnew("Sum is: ");
- * s = sdscatprintf(s,"%d+%d = %d",a,b,a+b).
- *
- * Often you need to create a string from scratch with the printf-alike
- * format. When this is the need, just use sdsempty() as the target string:
- *
- * s = sdscatprintf(sdsempty(), "... your format ...", args);
- */
-sds sdscatprintf(sds s, const char *fmt, ...) {
-    va_list ap;
-    char *t;
-    va_start(ap, fmt);
-    t = sdscatvprintf(s,fmt,ap);
-    va_end(ap);
-    return t;
-}
-
-/* This function is similar to sdscatprintf, but much faster as it does
- * not rely on sprintf() family functions implemented by the libc that
- * are often very slow. Moreover directly handling the sds string as
- * new data is concatenated provides a performance improvement.
- *
- * However this function only handles an incompatible subset of printf-alike
- * format specifiers:
- *
- * %s - C String
- * %S - SDS string
- * %i - signed int
- * %I - 64 bit signed integer (long long, int64_t)
- * %u - unsigned int
- * %U - 64 bit unsigned integer (unsigned long long, uint64_t)
- * %% - Verbatim "%" character.
- */
-sds sdscatfmt(sds s, char const *fmt, ...) {
-    size_t initlen = sdslen(s);
-    const char *f = fmt;
-    long i;
-    va_list ap;
-
-    /* To avoid continuous reallocations, let's start with a buffer that
-     * can hold at least two times the format string itself. It's not the
-     * best heuristic but seems to work in practice. */
-    s = sdsMakeRoomFor(s, strlen(fmt)*2);
-    va_start(ap,fmt);
-    f = fmt;    /* Next format specifier byte to process. */
-    i = initlen; /* Position of the next byte to write to dest str. */
-    while(*f) {
-        char next, *str;
-        size_t l;
-        long long num;
-        unsigned long long unum;
-
-        /* Make sure there is always space for at least 1 char. */
-        if (sdsavail(s)==0) {
-            s = sdsMakeRoomFor(s,1);
-        }
-
-        switch(*f) {
-        case '%':
-            next = *(f+1);
-            if (next == '\0') break;
-            f++;
-            switch(next) {
-            case 's':
-            case 'S':
-                str = va_arg(ap,char*);
-                l = (next == 's') ? strlen(str) : sdslen(str);
-                if (sdsavail(s) < l) {
-                    s = sdsMakeRoomFor(s,l);
-                }
-                memcpy(s+i,str,l);
-                sdsinclen(s,l);
-                i += l;
-                break;
-            case 'i':
-            case 'I':
-                if (next == 'i')
-                    num = va_arg(ap,int);
-                else
-                    num = va_arg(ap,long long);
-                {
-                    char buf[LONG_STR_SIZE];
-                    l = ll2string(buf,sizeof(buf),num);
-                    if (sdsavail(s) < l) {
-                        s = sdsMakeRoomFor(s,l);
-                    }
-                    memcpy(s+i,buf,l);
-                    sdsinclen(s,l);
-                    i += l;
-                }
-                break;
-            case 'u':
-            case 'U':
-                if (next == 'u')
-                    unum = va_arg(ap,unsigned int);
-                else
-                    unum = va_arg(ap,unsigned long long);
-                {
-                    char buf[LONG_STR_SIZE];
-                    l = ull2string(buf,sizeof(buf),unum);
-                    if (sdsavail(s) < l) {
-                        s = sdsMakeRoomFor(s,l);
-                    }
-                    memcpy(s+i,buf,l);
-                    sdsinclen(s,l);
-                    i += l;
-                }
-                break;
-            default: /* Handle %% and generally %<unknown>. */
-                s[i++] = next;
-                sdsinclen(s,1);
-                break;
-            }
-            break;
-        default:
-            s[i++] = *f;
-            sdsinclen(s,1);
-            break;
-        }
-        f++;
-    }
-    va_end(ap);
-
-    /* Add null-term */
-    s[i] = '\0';
-    return s;
-}
-
-/* Remove the part of the string from left and from right composed just of
- * contiguous characters found in 'cset', that is a null terminated C string.
- *
- * After the call, the modified sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call.
- *
- * Example:
- *
- * s = sdsnew("AA...AA.a.aa.aHelloWorld     :::");
- * s = sdstrim(s,"Aa. :");
- * printf("%s\n", s);
- *
- * Output will be just "HelloWorld".
- */
-sds sdstrim(sds s, const char *cset) {
-    char *end, *sp, *ep;
-    size_t len;
-
-    sp = s;
-    ep = end = s+sdslen(s)-1;
-    while(sp <= end && strchr(cset, *sp)) sp++;
-    while(ep > sp && strchr(cset, *ep)) ep--;
-    len = (ep-sp)+1;
-    if (s != sp) memmove(s, sp, len);
-    s[len] = '\0';
-    sdssetlen(s,len);
-    return s;
-}
-
-/* Changes the input string to be a subset of the original.
- * It does not release the free space in the string, so a call to
- * sdsRemoveFreeSpace may be wise after. */
-void sdssubstr(sds s, size_t start, size_t len) {
-    /* Clamp out of range input */
-    size_t oldlen = sdslen(s);
-    if (start >= oldlen) start = len = 0;
-    if (len > oldlen-start) len = oldlen-start;
-
-    /* Move the data */
-    if (len) memmove(s, s+start, len);
-    s[len] = 0;
-    sdssetlen(s,len);
-}
-
-/* Turn the string into a smaller (or equal) string containing only the
- * substring specified by the 'start' and 'end' indexes.
- *
- * start and end can be negative, where -1 means the last character of the
- * string, -2 the penultimate character, and so forth.
- *
- * The interval is inclusive, so the start and end characters will be part
- * of the resulting string.
- *
- * The string is modified in-place.
- *
- * NOTE: this function can be misleading and can have unexpected behaviour,
- * specifically when you want the length of the new string to be 0.
- * Having start==end will result in a string with one character.
- * please consider using sdssubstr instead.
- *
- * Example:
- *
- * s = sdsnew("Hello World");
- * sdsrange(s,1,-1); => "ello World"
- */
-void sdsrange(sds s, ssize_t start, ssize_t end) {
-    size_t newlen, len = sdslen(s);
-    if (len == 0) return;
-    if (start < 0)
-        start = len + start;
-    if (end < 0)
-        end = len + end;
-    newlen = (start > end) ? 0 : (end-start)+1;
-    sdssubstr(s, start, newlen);
-}
-
-/* Apply tolower() to every character of the sds string 's'. */
-void sdstolower(sds s) {
-    size_t len = sdslen(s), j;
-
-    for (j = 0; j < len; j++) s[j] = tolower(s[j]);
-}
-
-/* Apply toupper() to every character of the sds string 's'. */
-void sdstoupper(sds s) {
-    size_t len = sdslen(s), j;
-
-    for (j = 0; j < len; j++) s[j] = toupper(s[j]);
-}
-
-/* Compare two sds strings s1 and s2 with memcmp().
- *
- * Return value:
- *
- *     positive if s1 > s2.
- *     negative if s1 < s2.
- *     0 if s1 and s2 are exactly the same binary string.
- *
- * If two strings share exactly the same prefix, but one of the two has
- * additional characters, the longer string is considered to be greater than
- * the smaller one. */
-int sdscmp(const sds s1, const sds s2) {
-    size_t l1, l2, minlen;
-    int cmp;
-
-    l1 = sdslen(s1);
-    l2 = sdslen(s2);
-    minlen = (l1 < l2) ? l1 : l2;
-    cmp = memcmp(s1,s2,minlen);
-    if (cmp == 0) return l1>l2? 1: (l1<l2? -1: 0);
-    return cmp;
-}
-
-/* Split 's' with separator in 'sep'. An array
- * of sds strings is returned. *count will be set
- * by reference to the number of tokens returned.
- *
- * On out of memory, zero length string, zero length
- * separator, NULL is returned.
- *
- * Note that 'sep' is able to split a string using
- * a multi-character separator. For example
- * sdssplit("foo_-_bar","_-_"); will return two
- * elements "foo" and "bar".
- *
- * This version of the function is binary-safe but
- * requires length arguments. sdssplit() is just the
- * same function but for zero-terminated strings.
- */
-sds *sdssplitlen(const char *s, ssize_t len, const char *sep, int seplen, int *count) {
-    int elements = 0, slots = 5;
-    long start = 0, j;
-    sds *tokens;
-
-    if (seplen < 1 || len <= 0) {
-        *count = 0;
-        return NULL;
-    }
-    tokens = s_malloc(sizeof(sds)*slots);
-    if (tokens == NULL) return NULL;
-
-    for (j = 0; j < (len-(seplen-1)); j++) {
-        /* make sure there is room for the next element and the final one */
-        if (slots < elements+2) {
-            sds *newtokens;
-
-            slots *= 2;
-            newtokens = s_realloc(tokens,sizeof(sds)*slots);
-            if (newtokens == NULL) goto cleanup;
-            tokens = newtokens;
-        }
-        /* search the separator */
-        if ((seplen == 1 && *(s+j) == sep[0]) || (memcmp(s+j,sep,seplen) == 0)) {
-            tokens[elements] = sdsnewlen(s+start,j-start);
-            if (tokens[elements] == NULL) goto cleanup;
-            elements++;
-            start = j+seplen;
-            j = j+seplen-1; /* skip the separator */
-        }
-    }
-    /* Add the final element. We are sure there is room in the tokens array. */
-    tokens[elements] = sdsnewlen(s+start,len-start);
-    if (tokens[elements] == NULL) goto cleanup;
-    elements++;
-    *count = elements;
-    return tokens;
-
-cleanup:
-    {
-        int i;
-        for (i = 0; i < elements; i++) sdsfree(tokens[i]);
-        s_free(tokens);
-        *count = 0;
-        return NULL;
-    }
-}
-
-/* Free the result returned by sdssplitlen(), or do nothing if 'tokens' is NULL. */
-void sdsfreesplitres(sds *tokens, int count) {
-    if (!tokens) return;
-    while(count--)
-        sdsfree(tokens[count]);
-    s_free(tokens);
-}
-
-/* Append to the sds string "s" an escaped string representation where
- * all the non-printable characters (tested with isprint()) are turned into
- * escapes in the form "\n\r\a...." or "\x<hex-number>".
- *
- * After the call, the modified sds string is no longer valid and all the
- * references must be substituted with the new pointer returned by the call. */
-sds sdscatrepr(sds s, const char *p, size_t len) {
-    s = sdsMakeRoomFor(s, len + 2);
-    s = sdscatlen(s,"\"",1);
-    while(len--) {
-        switch(*p) {
-        case '\\':
-        case '"':
-            s = sdscatprintf(s,"\\%c",*p);
-            break;
-        case '\n': s = sdscatlen(s,"\\n",2); break;
-        case '\r': s = sdscatlen(s,"\\r",2); break;
-        case '\t': s = sdscatlen(s,"\\t",2); break;
-        case '\a': s = sdscatlen(s,"\\a",2); break;
-        case '\b': s = sdscatlen(s,"\\b",2); break;
-        default:
-            if (isprint(*p))
-                s = sdscatlen(s, p, 1);
-            else
-                s = sdscatprintf(s,"\\x%02x",(unsigned char)*p);
-            break;
-        }
-        p++;
-    }
-    return sdscatlen(s,"\"",1);
-}
-
-/* Returns one if the string contains characters to be escaped
- * by sdscatrepr(), zero otherwise.
- *
- * Typically, this should be used to help protect aggregated strings in a way
- * that is compatible with sdssplitargs(). For this reason, also spaces will be
- * treated as needing an escape.
- */
-int sdsneedsrepr(const sds s) {
-    size_t len = sdslen(s);
-    const char *p = s;
-
-    while (len--) {
-        if (*p == '\\' || *p == '"' || *p == '\n' || *p == '\r' ||
-            *p == '\t' || *p == '\a' || *p == '\b' || !isprint(*p) || isspace(*p)) return 1;
-        p++;
-    }
-
-    return 0;
-}
-
-/* Helper function for sdssplitargs() that returns non zero if 'c'
- * is a valid hex digit. */
-int is_hex_digit(char c) {
-    return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') ||
-           (c >= 'A' && c <= 'F');
-}
-
-/* Helper function for sdssplitargs() that converts a hex digit into an
- * integer from 0 to 15 */
-int hex_digit_to_int(char c) {
-    switch(c) {
-    case '0': return 0;
-    case '1': return 1;
-    case '2': return 2;
-    case '3': return 3;
-    case '4': return 4;
-    case '5': return 5;
-    case '6': return 6;
-    case '7': return 7;
-    case '8': return 8;
-    case '9': return 9;
-    case 'a': case 'A': return 10;
-    case 'b': case 'B': return 11;
-    case 'c': case 'C': return 12;
-    case 'd': case 'D': return 13;
-    case 'e': case 'E': return 14;
-    case 'f': case 'F': return 15;
-    default: return 0;
-    }
-}
-
-/* Split a line into arguments, where every argument can be in the
- * following programming-language REPL-alike form:
- *
- * foo bar "newline are supported\n" and "\xff\x00otherstuff"
- *
- * The number of arguments is stored into *argc, and an array
- * of sds is returned.
- *
- * The caller should free the resulting array of sds strings with
- * sdsfreesplitres().
- *
- * Note that sdscatrepr() is able to convert back a string into
- * a quoted string in the same format sdssplitargs() is able to parse.
- *
- * The function returns the allocated tokens on success, even when the
- * input string is empty, or NULL if the input contains unbalanced
- * quotes or closed quotes followed by non space characters
- * as in: "foo"bar or "foo'
- */
-sds *sdssplitargs(const char *line, int *argc) {
-    const char *p = line;
-    char *current = NULL;
-    char **vector = NULL;
-
-    *argc = 0;
-    while(1) {
-        /* skip blanks */
-        while(*p && isspace(*p)) p++;
-        if (*p) {
-            /* get a token */
-            int inq=0;  /* set to 1 if we are in "quotes" */
-            int insq=0; /* set to 1 if we are in 'single quotes' */
-            int done=0;
-
-            if (current == NULL) current = sdsempty();
-            while(!done) {
-                if (inq) {
-                    if (*p == '\\' && *(p+1) == 'x' &&
-                                             is_hex_digit(*(p+2)) &&
-                                             is_hex_digit(*(p+3)))
-                    {
-                        unsigned char byte;
-
-                        byte = (hex_digit_to_int(*(p+2))*16)+
-                                hex_digit_to_int(*(p+3));
-                        current = sdscatlen(current,(char*)&byte,1);
-                        p += 3;
-                    } else if (*p == '\\' && *(p+1)) {
-                        char c;
-
-                        p++;
-                        switch(*p) {
-                        case 'n': c = '\n'; break;
-                        case 'r': c = '\r'; break;
-                        case 't': c = '\t'; break;
-                        case 'b': c = '\b'; break;
-                        case 'a': c = '\a'; break;
-                        default: c = *p; break;
-                        }
-                        current = sdscatlen(current,&c,1);
-                    } else if (*p == '"') {
-                        /* closing quote must be followed by a space or
-                         * nothing at all. */
-                        if (*(p+1) && !isspace(*(p+1))) goto err;
-                        done=1;
-                    } else if (!*p) {
-                        /* unterminated quotes */
-                        goto err;
-                    } else {
-                        current = sdscatlen(current,p,1);
-                    }
-                } else if (insq) {
-                    if (*p == '\\' && *(p+1) == '\'') {
-                        p++;
-                        current = sdscatlen(current,"'",1);
-                    } else if (*p == '\'') {
-                        /* closing quote must be followed by a space or
-                         * nothing at all. */
-                        if (*(p+1) && !isspace(*(p+1))) goto err;
-                        done=1;
-                    } else if (!*p) {
-                        /* unterminated quotes */
-                        goto err;
-                    } else {
-                        current = sdscatlen(current,p,1);
-                    }
-                } else {
-                    switch(*p) {
-                    case ' ':
-                    case '\n':
-                    case '\r':
-                    case '\t':
-                    case '\0':
-                        done=1;
-                        break;
-                    case '"':
-                        inq=1;
-                        break;
-                    case '\'':
-                        insq=1;
-                        break;
-                    default:
-                        current = sdscatlen(current,p,1);
-                        break;
-                    }
-                }
-                if (*p) p++;
-            }
-            /* add the token to the vector */
-            vector = s_realloc(vector,((*argc)+1)*sizeof(char*));
-            vector[*argc] = current;
-            (*argc)++;
-            current = NULL;
-        } else {
-            /* Even on empty input string return something not NULL. */
-            if (vector == NULL) vector = s_malloc(sizeof(void*));
-            return vector;
-        }
-    }
-
-err:
-    while((*argc)--)
-        sdsfree(vector[*argc]);
-    s_free(vector);
-    if (current) sdsfree(current);
-    *argc = 0;
-    return NULL;
-}
-
-/* Modify the string substituting all the occurrences of the set of
- * characters specified in the 'from' string to the corresponding character
- * in the 'to' array.
- *
- * For instance: sdsmapchars(mystring, "ho", "01", 2)
- * will have the effect of turning the string "hello" into "0ell1".
- *
- * The function returns the sds string pointer, that is always the same
- * as the input pointer since no resize is needed. */
-sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen) {
-    size_t j, i, l = sdslen(s);
-
-    for (j = 0; j < l; j++) {
-        for (i = 0; i < setlen; i++) {
-            if (s[j] == from[i]) {
-                s[j] = to[i];
-                break;
-            }
-        }
-    }
-    return s;
-}
-
-/* Join an array of C strings using the specified separator (also a C string).
- * Returns the result as an sds string. */
-sds sdsjoin(char **argv, int argc, char *sep) {
-    sds join = sdsempty();
-    int j;
-
-    for (j = 0; j < argc; j++) {
-        join = sdscat(join, argv[j]);
-        if (j != argc-1) join = sdscat(join,sep);
-    }
-    return join;
-}
-
-/* Like sdsjoin, but joins an array of SDS strings. */
-sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen) {
-    sds join = sdsempty();
-    int j;
-
-    for (j = 0; j < argc; j++) {
-        join = sdscatsds(join, argv[j]);
-        if (j != argc-1) join = sdscatlen(join,sep,seplen);
-    }
-    return join;
-}
-
-/* Wrappers to the allocators used by SDS. Note that SDS will actually
- * just use the macros defined into sdsalloc.h in order to avoid to pay
- * the overhead of function calls. Here we define these wrappers only for
- * the programs SDS is linked to, if they want to touch the SDS internals
- * even if they use a different allocator. */
-void *sds_malloc(size_t size) { return s_malloc(size); }
-void *sds_realloc(void *ptr, size_t size) { return s_realloc(ptr,size); }
-void sds_free(void *ptr) { s_free(ptr); }
-
-/* Perform expansion of a template string and return the result as a newly
- * allocated sds.
- *
- * Template variables are specified using curly brackets, e.g. {variable}.
- * An opening bracket can be quoted by repeating it twice.
- */
-sds sdstemplate(const char *template, sdstemplate_callback_t cb_func, void *cb_arg)
-{
-    sds res = sdsempty();
-    const char *p = template;
-
-    while (*p) {
-        /* Find next variable, copy everything until there */
-        const char *sv = strchr(p, '{');
-        if (!sv) {
-            /* Not found: copy till rest of template and stop */
-            res = sdscat(res, p);
-            break;
-        } else if (sv > p) {
-            /* Found: copy anything up to the beginning of the variable */
-            res = sdscatlen(res, p, sv - p);
-        }
-
-        /* Skip into variable name, handle premature end or quoting */
-        sv++;
-        if (!*sv) goto error;       /* Premature end of template */
-        if (*sv == '{') {
-            /* Quoted '{' */
-            p = sv + 1;
-            res = sdscat(res, "{");
-            continue;
-        }
-
-        /* Find end of variable name, handle premature end of template */
-        const char *ev = strchr(sv, '}');
-        if (!ev) goto error;
-
-        /* Pass variable name to callback and obtain value. If callback failed,
-         * abort. */
-        sds varname = sdsnewlen(sv, ev - sv);
-        sds value = cb_func(varname, cb_arg);
-        sdsfree(varname);
-        if (!value) goto error;
-
-        /* Append value to result and continue */
-        res = sdscat(res, value);
-        sdsfree(value);
-        p = ev + 1;
-    }
-
-    return res;
-
-error:
-    sdsfree(res);
-    return NULL;
-}
-
-#ifdef REDIS_TEST
-#include <stdio.h>
-#include <limits.h>
-#include "testhelp.h"
-
-#define UNUSED(x) (void)(x)
-
-static sds sdsTestTemplateCallback(sds varname, void *arg) {
-    UNUSED(arg);
-    static const char *_var1 = "variable1";
-    static const char *_var2 = "variable2";
-
-    if (!strcmp(varname, _var1)) return sdsnew("value1");
-    else if (!strcmp(varname, _var2)) return sdsnew("value2");
-    else return NULL;
-}
-
-int sdsTest(int argc, char **argv, int flags) {
-    UNUSED(argc);
-    UNUSED(argv);
-    UNUSED(flags);
-
-    {
-        sds x = sdsnew("foo"), y;
-
-        test_cond("Create a string and obtain the length",
-            sdslen(x) == 3 && memcmp(x,"foo\0",4) == 0);
-
-        sdsfree(x);
-        x = sdsnewlen("foo",2);
-        test_cond("Create a string with specified length",
-            sdslen(x) == 2 && memcmp(x,"fo\0",3) == 0);
-
-        x = sdscat(x,"bar");
-        test_cond("Strings concatenation",
-            sdslen(x) == 5 && memcmp(x,"fobar\0",6) == 0);
-
-        x = sdscpy(x,"a");
-        test_cond("sdscpy() against an originally longer string",
-            sdslen(x) == 1 && memcmp(x,"a\0",2) == 0);
-
-        x = sdscpy(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk");
-        test_cond("sdscpy() against an originally shorter string",
-            sdslen(x) == 33 &&
-            memcmp(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk\0",33) == 0);
-
-        sdsfree(x);
-        x = sdscatprintf(sdsempty(),"%d",123);
-        test_cond("sdscatprintf() seems working in the base case",
-            sdslen(x) == 3 && memcmp(x,"123\0",4) == 0);
-
-        sdsfree(x);
-        x = sdscatprintf(sdsempty(),"a%cb",0);
-        test_cond("sdscatprintf() seems working with \\0 inside of result",
-            sdslen(x) == 3 && memcmp(x,"a\0""b\0",4) == 0);
-
-        {
-            sdsfree(x);
-            char etalon[1024*1024];
-            for (size_t i = 0; i < sizeof(etalon); i++) {
-                etalon[i] = '0';
-            }
-            x = sdscatprintf(sdsempty(),"%0*d",(int)sizeof(etalon),0);
-            test_cond("sdscatprintf() can print 1MB",
-                sdslen(x) == sizeof(etalon) && memcmp(x,etalon,sizeof(etalon)) == 0);
-        }
-
-        sdsfree(x);
-        x = sdsnew("--");
-        x = sdscatfmt(x, "Hello %s World %I,%I--", "Hi!", LLONG_MIN,LLONG_MAX);
-        test_cond("sdscatfmt() seems working in the base case",
-            sdslen(x) == 60 &&
-            memcmp(x,"--Hello Hi! World -9223372036854775808,"
-                     "9223372036854775807--",60) == 0);
-        printf("[%s]\n",x);
-
-        sdsfree(x);
-        x = sdsnew("--");
-        x = sdscatfmt(x, "%u,%U--", UINT_MAX, ULLONG_MAX);
-        test_cond("sdscatfmt() seems working with unsigned numbers",
-            sdslen(x) == 35 &&
-            memcmp(x,"--4294967295,18446744073709551615--",35) == 0);
-
-        sdsfree(x);
-        x = sdsnew(" x ");
-        sdstrim(x," x");
-        test_cond("sdstrim() works when all chars match",
-            sdslen(x) == 0);
-
-        sdsfree(x);
-        x = sdsnew(" x ");
-        sdstrim(x," ");
-        test_cond("sdstrim() works when a single char remains",
-            sdslen(x) == 1 && x[0] == 'x');
-
-        sdsfree(x);
-        x = sdsnew("xxciaoyyy");
-        sdstrim(x,"xy");
-        test_cond("sdstrim() correctly trims characters",
-            sdslen(x) == 4 && memcmp(x,"ciao\0",5) == 0);
-
-        y = sdsdup(x);
-        sdsrange(y,1,1);
-        test_cond("sdsrange(...,1,1)",
-            sdslen(y) == 1 && memcmp(y,"i\0",2) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,1,-1);
-        test_cond("sdsrange(...,1,-1)",
-            sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,-2,-1);
-        test_cond("sdsrange(...,-2,-1)",
-            sdslen(y) == 2 && memcmp(y,"ao\0",3) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,2,1);
-        test_cond("sdsrange(...,2,1)",
-            sdslen(y) == 0 && memcmp(y,"\0",1) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,1,100);
-        test_cond("sdsrange(...,1,100)",
-            sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,100,100);
-        test_cond("sdsrange(...,100,100)",
-            sdslen(y) == 0 && memcmp(y,"\0",1) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,4,6);
-        test_cond("sdsrange(...,4,6)",
-            sdslen(y) == 0 && memcmp(y,"\0",1) == 0);
-
-        sdsfree(y);
-        y = sdsdup(x);
-        sdsrange(y,3,6);
-        test_cond("sdsrange(...,3,6)",
-            sdslen(y) == 1 && memcmp(y,"o\0",2) == 0);
-
-        sdsfree(y);
-        sdsfree(x);
-        x = sdsnew("foo");
-        y = sdsnew("foa");
-        test_cond("sdscmp(foo,foa)", sdscmp(x,y) > 0);
-
-        sdsfree(y);
-        sdsfree(x);
-        x = sdsnew("bar");
-        y = sdsnew("bar");
-        test_cond("sdscmp(bar,bar)", sdscmp(x,y) == 0);
-
-        sdsfree(y);
-        sdsfree(x);
-        x = sdsnew("aar");
-        y = sdsnew("bar");
-        test_cond("sdscmp(bar,bar)", sdscmp(x,y) < 0);
-
-        sdsfree(y);
-        sdsfree(x);
-        x = sdsnewlen("\a\n\0foo\r",7);
-        y = sdscatrepr(sdsempty(),x,sdslen(x));
-        test_cond("sdscatrepr(...data...)",
-            memcmp(y,"\"\\a\\n\\x00foo\\r\"",15) == 0);
-
-        {
-            unsigned int oldfree;
-            char *p;
-            int i;
-            size_t step = 10, j;
-
-            sdsfree(x);
-            sdsfree(y);
-            x = sdsnew("0");
-            test_cond("sdsnew() free/len buffers", sdslen(x) == 1 && sdsavail(x) == 0);
-
-            /* Run the test a few times in order to hit the first two
-             * SDS header types. */
-            for (i = 0; i < 10; i++) {
-                size_t oldlen = sdslen(x);
-                x = sdsMakeRoomFor(x,step);
-                int type = sdsType(x);
-
-                test_cond("sdsMakeRoomFor() len", sdslen(x) == oldlen);
-                if (type != SDS_TYPE_5) {
-                    test_cond("sdsMakeRoomFor() free", sdsavail(x) >= step);
-                    oldfree = sdsavail(x);
-                    UNUSED(oldfree);
-                }
-                p = x+oldlen;
-                for (j = 0; j < step; j++) {
-                    p[j] = 'A'+j;
-                }
-                sdsIncrLen(x,step);
-            }
-            test_cond("sdsMakeRoomFor() content",
-                memcmp("0ABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJ",x,101) == 0);
-            test_cond("sdsMakeRoomFor() final length",sdslen(x)==101);
-
-            sdsfree(x);
-        }
-
-        /* Simple template */
-        x = sdstemplate("v1={variable1} v2={variable2}", sdsTestTemplateCallback, NULL);
-        test_cond("sdstemplate() normal flow",
-                  memcmp(x,"v1=value1 v2=value2",19) == 0);
-        sdsfree(x);
-
-        /* Template with callback error */
-        x = sdstemplate("v1={variable1} v3={doesnotexist}", sdsTestTemplateCallback, NULL);
-        test_cond("sdstemplate() with callback error", x == NULL);
-
-        /* Template with empty var name */
-        x = sdstemplate("v1={", sdsTestTemplateCallback, NULL);
-        test_cond("sdstemplate() with empty var name", x == NULL);
-
-        /* Template with truncated var name */
-        x = sdstemplate("v1={start", sdsTestTemplateCallback, NULL);
-        test_cond("sdstemplate() with truncated var name", x == NULL);
-
-        /* Template with quoting */
-        x = sdstemplate("v1={{{variable1}} {{} v2={variable2}", sdsTestTemplateCallback, NULL);
-        test_cond("sdstemplate() with quoting",
-                  memcmp(x,"v1={value1} {} v2=value2",24) == 0);
-        sdsfree(x);
-
-        /* Test sdsresize - extend */
-        x = sdsnew("1234567890123456789012345678901234567890");
-        x = sdsResize(x, 200, 1);
-        test_cond("sdsresize() expand len", sdslen(x) == 40);
-        test_cond("sdsresize() expand strlen", strlen(x) == 40);
-        test_cond("sdsresize() expand alloc", sdsalloc(x) == 200);
-        /* Test sdsresize - trim free space */
-        x = sdsResize(x, 80, 1);
-        test_cond("sdsresize() shrink len", sdslen(x) == 40);
-        test_cond("sdsresize() shrink strlen", strlen(x) == 40);
-        test_cond("sdsresize() shrink alloc", sdsalloc(x) == 80);
-        /* Test sdsresize - crop used space */
-        x = sdsResize(x, 30, 1);
-        test_cond("sdsresize() crop len", sdslen(x) == 30);
-        test_cond("sdsresize() crop strlen", strlen(x) == 30);
-        test_cond("sdsresize() crop alloc", sdsalloc(x) == 30);
-        /* Test sdsresize - extend to different class */
-        x = sdsResize(x, 400, 1);
-        test_cond("sdsresize() expand len", sdslen(x) == 30);
-        test_cond("sdsresize() expand strlen", strlen(x) == 30);
-        test_cond("sdsresize() expand alloc", sdsalloc(x) == 400);
-        /* Test sdsresize - shrink to different class */
-        x = sdsResize(x, 4, 1);
-        test_cond("sdsresize() crop len", sdslen(x) == 4);
-        test_cond("sdsresize() crop strlen", strlen(x) == 4);
-        test_cond("sdsresize() crop alloc", sdsalloc(x) == 4);
-        sdsfree(x);
-        
-        { /* Test adjustTypeIfNeeded() */
-            /* Test case: Type should be adjusted when buffer size exceeds max size for current type */
-            char type = SDS_TYPE_8;
-            int hdrlen = sdsHdrSize(type);
-            size_t bufsize = (1<<8) + hdrlen + 1; /* Exceeds SDS_TYPE_8 max size */
-
-            int result = adjustTypeIfNeeded(&type, &hdrlen, bufsize);
-            test_cond("adjustTypeIfNeeded() returns 1 when type needs adjustment", result == 1);
-            test_cond("adjustTypeIfNeeded() adjusts type correctly", type == SDS_TYPE_16);
-            test_cond("adjustTypeIfNeeded() adjusts header length correctly", hdrlen == sdsHdrSize(SDS_TYPE_16));
-
-            /* Test case: Type should not be adjusted when buffer size is within max size for current type */
-            type = SDS_TYPE_8;
-            hdrlen = sdsHdrSize(type);
-            bufsize = (1<<8) - 10 + hdrlen + 1; /* Within SDS_TYPE_8 max size */
-            result = adjustTypeIfNeeded(&type, &hdrlen, bufsize);
-            test_cond("adjustTypeIfNeeded() returns 0 when type doesn't need adjustment", result == 0);
-            test_cond("adjustTypeIfNeeded() doesn't change type when not needed", type == SDS_TYPE_8);
-            test_cond("adjustTypeIfNeeded() doesn't change header length when not needed", hdrlen == sdsHdrSize(SDS_TYPE_8));
-
-            /* Test case 3: Type 5 should never be adjusted */
-            type = SDS_TYPE_5;
-            hdrlen = sdsHdrSize(type);
-            bufsize = 1000; /* Large buffer size */
-            result = adjustTypeIfNeeded(&type, &hdrlen, bufsize);
-            test_cond("adjustTypeIfNeeded() returns 0 for SDS_TYPE_5", result == 0);
-            test_cond("adjustTypeIfNeeded() doesn't change SDS_TYPE_5", type == SDS_TYPE_5);
-            test_cond("adjustTypeIfNeeded() doesn't change header length for SDS_TYPE_5", hdrlen == sdsHdrSize(SDS_TYPE_5));
-        }
-    }
-    return 0;
-}
-#endif