regfree()

Updated: May 06, 2022

Release memory allocated for a regular expression

Synopsis:

#include <regex.h>

void regfree( regex_t * preg );

Arguments:

preg
A pointer to the regex_t object for the regular expression that you want to free; see regcomp().

Library:

libregex

Use the -l regex option to qcc to link against this library.

Description:

The regfree() function releases all memory allocated by regcomp() associated with preg.

Examples:

See regcomp().

Classification:

POSIX 1003.1

Safety:  
Cancellation point No
Interrupt handler No
Signal handler No
Thread Yes

Contributing author:

Henry Spencer. For license information, see Licensing information in Typographical Conventions, Support, and Licensing.