strncat

Syntax

#include <string.h> char *strncat(char *s1, const char *s2, size_t max);

Description

This function concatenates up to max characters of s2 to the end of s1.

Return Value

s1

Portability

ANSI/ISO C	C89; C99
POSIX	1003.2-1992; 1003.1-2001

Example

strncat(fname, extension, 4);