totn C Functions

C Language: wcstombs function
(Convert Wide Character String to Multibyte String)

In the C Programming Language, the wcstombs function converts a wide character string (as pointed to by pwcs) into a multibyte string (as pointed to by s) up to n bytes in length.

Syntax

The syntax for the wcstombs function in the C Language is:

size_t wcstombs(char *s, const wchar_t *pwcs, size_t n);

Parameters or Arguments

s
The array where the converted multibyte string will be stored.
pwcs
The wide character string to convert into a multibyte string.
n
The maximum number of bytes to store in s.

Note

  • The wcstombs function will end the conversion if a null character is stored or if n bytes is reached.

Returns

The wcstombs function returns the number of bytes stored (not including the null character). The wcstombs function will return -1 if it encountered a character that does not correspond to a valid multibyte character.

Required Header

In the C Language, the required header for the wcstombs function is:

#include <stdlib.h>

Applies To

In the C Language, the wcstombs function can be used in the following versions:

  • ANSI/ISO 9899-1990

Similar Functions

Other C functions that are similar to the wcstombs function:

See Also

Other C functions that are noteworthy when dealing with the wcstombs function: