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refactor cJSONUtils_strcasecmp

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This commit is contained in:
Max Bruckner 2017-04-30 12:52:29 +02:00
parent 055c7007e5
commit 44d313212b
1 changed files with 12 additions and 9 deletions
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21
cJSON_Utils.c
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@ -46,25 +46,28 @@ static unsigned char* cJSONUtils_strdup(const unsigned char* const string)
return copy;
}
static int cJSONUtils_strcasecmp(const unsigned char *s1, const unsigned char *s2)
/* Case insensitive string comparison, doesn't consider two NULL pointers equal though */
static int cJSONUtils_strcasecmp(const unsigned char *string1, const unsigned char *string2)
{
if (!s1)
{
return (s1 == s2) ? 0 : 1; /* both NULL? */
}
if (!s2)
if ((string1 == NULL) || (string2 == NULL))
{
return 1;
}
for(; tolower(*s1) == tolower(*s2); (void)++s1, ++s2)
if (string1 == string2)
{
if(*s1 == 0)
return 0;
}
for(; tolower(*string1) == tolower(*string2); (void)string1++, string2++)
{
if (*string1 == '\0')
{
return 0;
}
}
return tolower(*s1) - tolower(*s2);
return tolower(*string1) - tolower(*string2);
}
/* JSON Pointer implementation: */