strnset, _mbsnset, _wcsnset

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Header File

string.h

Category

Memory and String Manipulation Routines, Inline Routines

Prototype

char *strnset(char *s, int ch, size_t n);

wchar_t *_wcsnset(wchar_t *s, wchar_t ch, size_t n);

unsigned char *_mbsnset(unsigned char *s, unsigned int ch, size_t n);

Description

Sets a specified number of characters in a string to a given character.

strnset copies the character ch into the first n bytes of the string s. If n > strlen(s), then strlen(s) replaces n. It stops when n characters have been set, or when a null character is found.

Return Value

Each of these functions return s.

Example

#include <stdio.h>
#include <string.h>
int main(void)
{
   char *string = "abcdefghijklmnopqrstuvwxyz";
   char letter = 'x';
   printf("string before strnset: %s\n", string);
   strnset(string, letter, 13);
   printf("string after  strnset: %s\n", string);
   return 0;
}

Portability

POSIX Win32 ANSI C ANSI C++

strnset

+

_mbsnset

+

_wcsnset

+