WCSCOLL(3) | Library Functions Manual | WCSCOLL(3)

# NAME

`wcscoll` —
compare wide strings according to current collation

# LIBRARY

Standard C Library (libc, -lc)

# SYNOPSIS

`#include <wchar.h>`

int
`wcscoll`(const wchar_t *s1, const wchar_t *s2);

# DESCRIPTION

The `wcscoll`() function compares the nul-terminated strings s1 and s2 according to the current locale collation order. In the “`C`” locale, `wcscoll`() is equivalent to `wcscmp`().

# RETURN VALUES

The `wcscoll`() function returns an integer greater than, equal to, or less than 0, if s1 is greater than, equal to, or less than s2.

No return value is reserved to indicate errors; callers should set errno to 0 before calling `wcscoll`(). If it is non-zero upon return from `wcscoll`(), an error has occurred.

# ERRORS

The `wcscoll`() function will fail if:

[`EILSEQ`]
  An invalid wide-character code was specified.
[`ENOMEM`]
  Cannot allocate enough memory for temporary buffers.

# SEE ALSO

setlocale(3), strcoll(3), wcscmp(3), wcsxfrm(3)

# STANDARDS

The `wcscoll`() function conforms to ISO/IEC 9899:1999 (“ISO C99”).

# BUGS

The current implementation of `wcscoll`() function disregards `LC_COLLATE` locales, and falls back to using the `wcscmp`() function.

October 13, 2006 | NetBSD 9.4