ref: a7e3b10d2eb8c277917a18fd235540ccc4064964
dir: /doc/man3/strcat.3/
.TH strcat 3 .SH NAME strcat - concatenate two strings .SH SYNOPSIS #include <string.h> char *strcat(char *restrict s1, const char *restrict s2) .SH DESCRIPTION The .BR strcat () function appends a copy of the string pointed to by .I s2 (including the terminating null character) to the end of the string pointed to by .IR s1 . .PP The initial character of .I s2 overwrites the null character at the end of .I s1 .PP If copying takes place between objects that overlap, the behaviour is undefined. .SH RETURN VALUE The .BR strcat () function shall return the pointer .IR s1 . .SH STANDARDS ISO/IEC 9899:1999 Section 7.21.3.1