ref: 6b1309ac40e3f1842f42b5fbd995b40dbf8e3932
dir: /doc/man3/strncpy.3/
.TH strncpy 3 .SH NAME strncpy - copy bounded-length string .SH SYNOPSIS #include <string.h> char *strncpy(char *restrict s1, const char *restrict s2, size_t n) .SH DESCRIPTION The .BR strncpy () function copies not more than .I n characters (characters that follow a null character are not copied) from the array pointed to by .I s2 into the array pointed to by .IR s1 . .PP If copying takes place between objects that overlap, the behaviour is undefined. .PP If the array pointed to by .I s2 is a string that is shorter than .I n characters, null characters are appended to the copy in the array pointed to by .IR s1 , until n characters in all have been written. .PP The function shall not copy anything if .I n is equal to 0. .SH RETURN VALUE The .BR strcpy () function shall return the pointer .IR s1 . .SH STANDARDS ISO/IEC 9899:1999 Section 7.21.2.4