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C Library Reference
W
wcslen()
Compute the length of a wide-character string

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.
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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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        Convert a wide-character code to a character
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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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        Compute the length of a wide-character string
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        Compare two wide-character strings, ignoring case, up to a given length
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        Concatenate two wide-character strings, up to a maximum 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
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        Locate the first occurrence of a wide character in a buffer
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        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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        Perform word expansions
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        Scan formatted wide-character input from stdin
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wcslen()

QNX SDP8.0C Library ReferenceAPIDeveloper

Compute the length of a wide-character string

Synopsis:

#include <wchar.h>

size_t wcslen( const wchar_t * ws );

Arguments:

ws: The wide-character string whose length you want to calculate.

Library:

libc

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

Description:

The wcslen() function counts the wide characters in the string pointed to by ws.

Returns:

The number of wide characters, not counting the terminating NUL.

Classification:

ANSI, POSIX 1003.1


Safety:
Cancellation point	No
Signal handler	Yes
Thread	Yes

Page updated: August 09, 2024