NAME

mbstring: mbstowcs, wcstombs - multibyte string functions

SYNOPSIS

#include <stdlib.h>

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

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

DESCRIPTION

mbstowcs converts a sequence of multibyte characters from the array pointed to by s into a sequence of corresponding wide character codes and stores these codes into the array pointed to by pwcs, stopping after n codes are stored or a code with value zero (a converted null character) is stored. If an invalid multibyte character is encountered, mbstowcs returns (size_t)-1. Otherwise, mbstowcs returns the number of array elements modified, not including the terminating zero code, if any.

wcstombs converts a sequence of wide character codes from the array pointed to by pwcs into a sequence of multibyte characters and stores these multibyte characters into the array pointed to by s, stopping if a multibyte character would exceed the limit of n total bytes or if a null character is stored. If a wide character code is encountered that does not correspond to a valid multibyte character, wcstombs returns (size_t)-1. Otherwise, wcstombs returns the number of bytes modified, not including a terminating null character, if any.

SEE ALSO

mbchar(3C), setlocale(3C), environ(5).
chrtbl(1M) in the System Administrator's Reference Manual.