Collate strings according to global locale
Collate strings according to global locale. Compares two strings in the global locale. Returns a number less than 0 if the second string is greater, 0 if they are the same, and greater than 0 if the first string is greater, according to the sorting rules appropriate for the current locale. This routine currently does not handle multiple charsets. The locale is controlled by the platform through a control panel or the LC_TIME environment variable.
- 0 if s1 is equal to s2, less than 0 if s2 is greater, greater than 0 if s1 is greater
- s1 - Specifies string 1, in the global locale's charset
s2 - Specifies string 2, in the global locale's charset
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