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cJSON_strcasecmp: Improve readability

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This commit is contained in:
Max Bruckner 2017-03-25 14:06:45 +01:00
parent 218b0c8dcf
commit 655c26ada1
1 changed files with 15 additions and 7 deletions
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22
cJSON.c
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@ -65,25 +65,33 @@ CJSON_PUBLIC(const char*) cJSON_Version(void)
} }
/* case insensitive strcmp */ /* case insensitive strcmp */
static int cJSON_strcasecmp(const unsigned char *s1, const unsigned char *s2) static int cJSON_strcasecmp(const unsigned char *string1, const unsigned char *string2)
{ {
if (!s1) if (string1 == NULL)
{ {
return (s1 == s2) ? 0 : 1; /* both NULL? */ if (string2 == NULL)
{
/* both NULL */
return 0;
}
return 1;
} }
if (!s2)
if (string2 == NULL)
{ {
return 1; return 1;
} }
for(; tolower(*s1) == tolower(*s2); (void)++s1, ++s2)
for(; tolower(*string1) == tolower(*string2); (void)string1++, string2++)
{ {
if (*s1 == '\0') if (*string1 == '\0')
{ {
return 0; return 0;
} }
} }
return tolower(*s1) - tolower(*s2); return tolower(string1[0]) - tolower(string2[0]);
} }
typedef struct internal_hooks typedef struct internal_hooks