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W
wmemchr()
Locate the first occurrence of a wide character in a buffer

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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        Find the first occurrence of a wide character in a string
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        Compare two wide-character strings
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        Compare two wide-character strings, using the locale's collating sequence
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        Count the wide characters at the beginning of a string that aren't in a given character set
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        Compare two wide-character strings, ignoring case, up to a given length
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        Compare two wide-character strings, up to a given length
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        Copy a wide-character string, to a maximum length
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        Find the first wide character in a string that's in a given character set
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        Find the last occurrence of a wide character in a string
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        Convert a wide-character string into a multibyte character string (restartable)
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        Count the wide characters at the beginning of a string that are in a given character set
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        Find one wide-character string inside another
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        Convert a wide-character string into a double, float, or long double
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        Convert a wide-character string into an integer
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        Break a wide-character string into tokens
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        Convert a wide-character string into a long integer
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        Convert a wide-character string into a multibyte character string
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        Convert a wide-character string into an unsigned long integer
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        Transform one wide-character string into another, to a given length
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        Convert a wide character to a single-byte code
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        Convert a wide character into a multibyte character
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        Define a wide-character mapping
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        Define a wide-character class
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        Determine the number of column positions of a wide character
      - wmemchr()
        Locate the first occurrence of a wide character in a buffer
      - wmemcmp()
        Compare the wide characters in two buffers
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        Copy wide characters from one buffer to another
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        Copy wide characters from one buffer to another
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        Set wide characters in memory
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        Scan formatted wide-character input from stdin
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wmemchr()

QNX SDP8.0C Library ReferenceAPIDeveloper

Locate the first occurrence of a wide character in a buffer

Synopsis:

#include <wchar.h>

wchar_t * wmemchr( const wchar_t * ws,
                   wchar_t wc,
                   size_t n );

Arguments:

ws: The buffer that you want to search.
wc: The character that you're looking for.
n: The number of wide characters to search in the buffer.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The wmemchr() function locates the first occurrence of wc in the first n wide characters of the buffer pointed to by ws.

The wmemchr() function is locale-independent and treats all wchar_t values identically, even if they're null or invalid characters.

Returns:

A pointer to the located character, or NULL if wc couldn't be found.

Classification:

ANSI, POSIX 1003.1


Safety:
Cancellation point	No
Signal handler	Yes
Thread	Yes

Page updated: August 09, 2024