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-_ecvt really uses a static buffer for return values

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-Handle memory allocation failure

svn path=/trunk/; revision=42401
This commit is contained in:
Gregor Schneider
2009-08-05 02:02:25 +00:00
parent 313b147b5f
commit 0e0ee67a1a
1 changed files with 9 additions and 4 deletions
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reactos/lib/sdk/crt/stdlib/ecvt.c
+9 -4
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@@ -14,16 +14,16 @@
char *
_ecvt (double value, int ndigits, int *decpt, int *sign)
{
char *ecvtbuf, *cvtbuf;
char *s, *d;
static char ecvtbuf[DBL_MAX_10_EXP + 10];
char *cvtbuf, *s, *d;
s = cvtbuf = (char*)malloc(ndigits + 18); /* sign, dot, null, 15 for alignment */
d = ecvtbuf = (char*)malloc(DBL_MAX_10_EXP + 10);
d = ecvtbuf;
*sign = 0;
*decpt = 0;
if (cvtbuf == NULL || ecvtbuf == NULL)
if (cvtbuf == NULL)
{
return NULL;
}
@@ -91,6 +91,11 @@ _ecvt (double value, int ndigits, int *decpt, int *sign)
{
/* Need enhanced precision*/
char* tbuf = (char*)malloc(ndigits + 18);
if (tbuf == NULL)
{
free(cvtbuf);
return NULL;
}
sprintf(tbuf, "%-+.*E", ndigits + 2, value);
if (tbuf[1] >= '5')
{