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Fix harmless scan-build warnings.

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FossilOrigin-Name: beab3c98639be531744e60440223bb9ee76bc15234aff05e5efb273c8241dfd8
This commit is contained in:
drh
2023-07-08 14:27:55 +00:00
parent 50ba4e3efd
commit bc532ae15f
4 changed files with 20 additions and 11 deletions
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12
src/util.c
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@@ -933,6 +933,11 @@ int sqlite3Atoi(const char *z){
** n is positive. Or round to -n signficant digits after the
** decimal point if n is negative. No rounding is performed if
** n is zero.
**
** The significant digits of the decimal representation are
** stored in p->z[] which is a often (but not always) a pointer
** into the middle of p->zBuf[]. There are p->n significant digits.
** The p->z[] array is *not* zero-terminated.
*/
void sqlite3FpDecode(FpDecode *p, double r, int iRound, int mxRound){
int i;
@@ -1025,14 +1030,16 @@ void sqlite3FpDecode(FpDecode *p, double r, int iRound, int mxRound){
/* Extract significant digits. */
i = sizeof(p->zBuf)-1;
assert( v>0 );
while( v ){ p->zBuf[i--] = (v%10) + '0'; v /= 10; }
assert( i>=0 );
assert( i>=0 && i<sizeof(p->zBuf)-1 );
p->n = sizeof(p->zBuf) - 1 - i;
assert( p->n>0 );
assert( p->n<sizeof(p->zBuf) );
p->iDP = p->n + exp;
if( iRound<0 ){
iRound = p->iDP - iRound;
if( iRound==0 && p->z[i+1]>='5' ){
if( iRound==0 && p->zBuf[i+1]>='5' ){
iRound = 1;
p->zBuf[i--] = '0';
p->n++;
@@ -1061,6 +1068,7 @@ void sqlite3FpDecode(FpDecode *p, double r, int iRound, int mxRound){
}
}
p->z = &p->zBuf[i+1];
assert( i+p->n < sizeof(p->zBuf) );
while( ALWAYS(p->n>0) && p->z[p->n-1]=='0' ){ p->n--; }
}