The Open Group Base Specifications Issue 7
IEEE Std 1003.1-2008, 2016 Edition
Copyright © 2001-2016 The IEEE and The Open Group

#### NAME

> libgen.h - definitions for pattern matching functions

#### SYNOPSIS

> `[XSI] #include <libgen.h>`

#### DESCRIPTION

> The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.

>     char  *basename(char *);
>     char  *dirname(char *);

The following sections are informative.

#### APPLICATION USAGE

> None.

#### RATIONALE

> None.

#### FUTURE DIRECTIONS

> None.

#### SEE ALSO

> XSH basename, dirname

#### CHANGE HISTORY

> First released in Issue 4, Version 2.

#### Issue 5

> The function prototypes for basename() and dirname() are changed to indicate that the first argument is of type char * rather than const char *.

#### Issue 6

> The __loc1 symbol and the regcmp() and regex() functions are removed.

End of informative text.

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