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Technical Reference: Base Operating System and Extensions, Volume 1


mbsadvance Subroutine

Purpose

Advances to the next multibyte character.

Note: The mbsadvance subroutine is specific to the manufacturer. It is not defined in the POSIX, ANSI, or X/Open standards. Use of this subroutine may affect portability.

Library

Standard C Library (libc.a)

Syntax

#include <mbstr.h>


char *mbsadvance ( S)
const char *S;

Description

The mbsadvance subroutine locates the next character in a multibyte character string. The LC_CTYPE category affects the behavior of the mbsadvance subroutine.

Parameters


S Contains a multibyte character string.

Return Values

If the S parameter is not a null pointer, the mbsadvance subroutine returns a pointer to the next multibyte character in the string pointed to by the S parameter. The character at the head of the string pointed to by the S parameter is skipped. If the S parameter is a null pointer or points to a null string, a null pointer is returned.

Examples

To find the next character in a multibyte string, use the following:

#include <mbstr.h>
#include <locale.h>
#include <stdlib.h>

main()
{
   char *mbs, *pmbs;
   (void) setlocale(LC_ALL, "");
   /*
   ** Let mbs point to the beginning of a multi-byte string.
   */
   pmbs = mbs;
   while(pmbs){
      pmbs = mbsadvance(mbs);
      /* pmbs points to the next multi-byte character
      ** in mbs */
}

Implementation Specifics

This subroutine is part of Base Operating System (BOS) Runtime.

Related Information

The mbsinvalid (mbsinvalid Subroutine) subroutine.

National Language Support Overview for Programming, Subroutines Overview in AIX 5L Version 5.1 General Programming Concepts: Writing and Debugging Programs.


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