+/* Bit operations.
+ *
+ * Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Redis nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
#include "redis.h"
/* -----------------------------------------------------------------------------
o->ptr = sdsgrowzero(o->ptr,byte+1);
/* Get current values */
- byteval = ((char*)o->ptr)[byte];
+ byteval = ((uint8_t*)o->ptr)[byte];
bit = 7 - (bitoffset & 0x7);
bitval = byteval & (1 << bit);
/* Update byte with new bit value and return original value */
byteval &= ~(1 << bit);
byteval |= ((on & 0x1) << bit);
- ((char*)o->ptr)[byte] = byteval;
+ ((uint8_t*)o->ptr)[byte] = byteval;
signalModifiedKey(c->db,c->argv[1]);
server.dirty++;
addReply(c, bitval ? shared.cone : shared.czero);
bitval = llbuf[byte] & (1 << bit);
} else {
if (byte < sdslen(o->ptr))
- bitval = ((char*)o->ptr)[byte] & (1 << bit);
+ bitval = ((uint8_t*)o->ptr)[byte] & (1 << bit);
}
addReply(c, bitval ? shared.cone : shared.czero);
/* BITCOUNT key [start end] */
void bitcountCommand(redisClient *c) {
robj *o;
- long start, end;
+ long start, end, strlen;
unsigned char *p;
char llbuf[32];
- size_t strlen;
/* Lookup, check for type, and return 0 for non existing keys. */
if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.czero)) == NULL ||
if (end < 0) end = strlen+end;
if (start < 0) start = 0;
if (end < 0) end = 0;
- if ((unsigned)end >= strlen) end = strlen-1;
+ if (end >= strlen) end = strlen-1;
} else if (c->argc == 2) {
/* The whole string. */
start = 0;