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make strcasecmp STABLE if passed a null string

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git-svn-id: http://svn.code.sf.net/p/cjson/code@27 e3330c51-1366-4df0-8b21-3ccf24e3d50e
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Dave Gamble
2010-01-01 23:13:31 +00:00
parent 6420cfe7c4
commit ee4ce32ea8
1 changed files with 1 additions and 0 deletions
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cJSON.c
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@ -33,6 +33,7 @@
static int cJSON_strcasecmp(const char *s1,const char *s2) static int cJSON_strcasecmp(const char *s1,const char *s2)
{ {
if (!s1) return (s1==s2)?0:1;if (!s2) return 1;
for(; tolower(*s1) == tolower(*s2); ++s1, ++s2) if(*s1 == 0) return 0; for(; tolower(*s1) == tolower(*s2); ++s1, ++s2) if(*s1 == 0) return 0;
return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2); return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2);
} }