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Fix compiler warnings.

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FossilOrigin-Name: e9955c0e14d13ba1411f013acb4979958dae2516
This commit is contained in:
drh
2014-12-05 00:32:09 +00:00
parent 5de7d966bd
commit 2c3abeb8c3
4 changed files with 20 additions and 17 deletions
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ext/misc/eval.c
+11 -8
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@@ -21,11 +21,11 @@ SQLITE_EXTENSION_INIT1
** Structure used to accumulate the output
*/
struct EvalResult {
char *z; /* Accumulated output */
const char *zSep; /* Separator */
int szSep; /* Size of the separator string */
int nAlloc; /* Number of bytes allocated for z[] */
int nUsed; /* Number of bytes of z[] actually used */
char *z; /* Accumulated output */
const char *zSep; /* Separator */
int szSep; /* Size of the separator string */
sqlite3_int64 nAlloc; /* Number of bytes allocated for z[] */
sqlite3_int64 nUsed; /* Number of bytes of z[] actually used */
};
/*
@@ -37,10 +37,13 @@ static int callback(void *pCtx, int argc, char **argv, char **colnames){
for(i=0; i<argc; i++){
const char *z = argv[i] ? argv[i] : "";
size_t sz = strlen(z);
if( sz+p->nUsed+p->szSep+1 > p->nAlloc ){
if( (sqlite3_int64)sz+p->nUsed+p->szSep+1 > p->nAlloc ){
char *zNew;
p->nAlloc = p->nAlloc*2 + sz + p->szSep + 1;
zNew = sqlite3_realloc(p->z, p->nAlloc);
/* Using sqlite3_realloc64() would be better, but it is a recent
** addition and will cause a segfault if loaded by an older version
** of SQLite. */
zNew = p->nAlloc<=0x7fffffff ? sqlite3_realloc(p->z, (int)p->nAlloc) : 0;
if( zNew==0 ){
sqlite3_free(p->z);
memset(p, 0, sizeof(*p));
@@ -93,7 +96,7 @@ static void sqlEvalFunc(
sqlite3_result_error_nomem(context);
sqlite3_free(x.z);
}else{
sqlite3_result_text(context, x.z, x.nUsed, sqlite3_free);
sqlite3_result_text(context, x.z, (int)x.nUsed, sqlite3_free);
}
}