wcsrchr (original) (raw)

The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition
Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.

A newer edition of this document exists here

NAME

wcsrchr - wide-character string scanning operation

SYNOPSIS

`#include <wchar.h>

wchar_t *wcsrchr(const wchar_t *

ws, wchar_t wc);
`

DESCRIPTION

[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to the ISO C standard.

The wcsrchr() function shall locate the last occurrence of wc in the wide-character string pointed to by_ws_. The application shall ensure that the value of wc is a character representable as a type wchar_t and a wide-character code corresponding to a valid character in the current locale. The terminating null wide-character code shall be considered to be part of the wide-character string.

RETURN VALUE

Upon successful completion, wcsrchr() shall return a pointer to the wide-character code or a null pointer if _wc_does not occur in the wide-character string.

ERRORS

No errors are defined.

The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

wcschr(), the Base Definitions volume of IEEE Std 1003.1-2001, <wchar.h>

CHANGE HISTORY

First released in Issue 4. Derived from the MSE working draft.

Issue 6

The DESCRIPTION is updated to avoid use of the term "must" for application requirements.

End of informative text.

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