STPNCPYSection: Linux Programmer's Manual (3)
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NAMEstpncpy - copy a fixed-size string, returning a pointer to its end
#include <string.h> char *stpncpy(char *dest, const char *src, size_t n);
DESCRIPTIONThe stpncpy() function copies at most n characters from the string pointed to by src, including the terminating '\0' character, to the array pointed to by dest. Exactly n characters are written at dest. If the length strlen(src) is smaller than n, the remaining characters in the array pointed to by dest are filled with '\0' characters. If the length strlen(src) is greater or equal to n, the string pointed to by dest will not be '\0' terminated.
The strings may not overlap.
RETURN VALUEstpncpy() returns a pointer to the terminating null in dest, or, if dest is not null-terminated, dest + n.
CONFORMING TOThis function is a GNU extension.
SEE ALSOstrncpy(3), wcpncpy(3), feature_test_macros(7)
COLOPHONThis page is part of release 3.21 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.