strcoll, wcscoll, _mbscoll

Compare strings using locale-specific information.

intstrcoll(constchar*string1,constchar*string2);

intwcscoll(constwchar_t*string1,constwchar_t*string2);

int_mbscoll( constunsignedchar *string1**,constunsignedchar** *string2**);**

For additional compatibility information, see Compatibility in the Introduction.

Libraries

Return Value

Each of these functions returns a value indicating the relationship of string1 to string2, as follows.

Each of these functions returns _NLSCMPERROR on an error. To use _NLSCMPERROR, include either STRING.H or MBSTRING.H. wcscoll can fail if either string1 or string2 contains wide-character codes outside the domain of the collating sequence. When an error occurs, wcscoll may set errno to EINVAL. To check for an error on a call to wcscoll, set errno to 0 and then check errno after calling wcscoll.

Parameters

string1, string2

Null-terminated strings to compare

Remarks

Each of these functions performs a case-sensitive comparison of string1 and string2 according to the code page currently in use. These functions should be used only when there is a difference between the character set order and the lexicographic character order in the current code page and this difference is of interest for the string comparison.

Generic-Text Routine Mappings

Locale Routines, String Manipulation Routines |  strcoll Functions Overview

See Also   localeconv, _mbsnbcoll, setlocale, strcmp, _stricmp, strncmp, _strnicmp, strxfrm