STRDUP(3) | Library Functions Manual | STRDUP(3) |
strdup
, strndup
— save a copy of a string
Standard C Library (libc, -lc)
#include
<string.h>
char *
strdup
(const char *s1);
char *
strndup
(const char *s1,
size_t n);
The
strdup
()
function allocates sufficient memory for a copy of the string
s1, does the copy, and returns a pointer to it. The
pointer may subsequently be used as an argument to the function
free(3).
If insufficient memory is available, NULL is returned and
errno is set to ENOMEM
.
The
strndup
()
function copies at most n characters from the string
s1 always NUL
terminating the
copied string.
The strdup
() function first appeared in
4.4BSD. The strndup
()
function was added in FreeBSD 7.2.
December 5, 2008 | macOS 14.6 |