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Update strcmp implementation, to improve performance

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JerryScript-DCO-1.0-Signed-off-by: Xin Hu Xin.A.Hu@intel.com
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Xin Hu 2015-12-15 00:39:34 -05:00 committed by Ruben Ayrapetyan
parent f6bd5afa42
commit ba95cb010a
1 changed files with 10 additions and 30 deletions
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40
jerry-libc/jerry-libc.c
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@ -156,43 +156,23 @@ CALL_PRAGMA (GCC diagnostic pop)
/** Compare two strings. return an integer less than, equal to, or greater than zero
if s1 is found, respectively, to be less than, to match, or be greater than s2. */
int
strcmp (const char *s1, const char *s2)
strcmp (const char *str1, const char *str2)
{
size_t i;
if (s1 == NULL)
int s1;
int s2;
do
{
if (s2 != NULL)
{
return -1;
}
else
{
return 0;
}
}
if (s2 == NULL)
{
return 1;
}
s1 = *str1++;
s2 = *str2++;
for (i = 0; s1[i]; i++)
{
if (s1[i] > s2[i])
if (s1 == 0)
{
return 1;
}
else if (s1[i] < s2[i])
{
return -1;
break;
}
}
while (s1 == s2);
if (s2[i])
{
return -1;
}
return 0;
return (s1 < s2) ? -1 : (s1 > s2 ? 1 : 0);
}
/** Compare two strings. return an integer less than, equal to, or greater than zero