The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition
Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.
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NAME

strdup - duplicate a string

SYNOPSIS

[XSI] [Option Start] #include <string.h>

char *strdup(const char *s1); [Option End]

DESCRIPTION

The strdup() function shall return a pointer to a new string, which is a duplicate of the string pointed to by s1. The returned pointer can be passed to free(). A null pointer is returned if the new string cannot be created.

RETURN VALUE

The strdup() function shall return a pointer to a new string on success. Otherwise, it shall return a null pointer and set errno to indicate the error.

ERRORS

The strdup() function may fail if:

[ENOMEM]
Storage space available is insufficient.
The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

free(), malloc(), the Base Definitions volume of IEEE Std 1003.1-2001, <string.h>

CHANGE HISTORY

First released in Issue 4, Version 2.

Issue 5

Moved from X/OPEN UNIX extension to BASE.

End of informative text.
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