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QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
Utilities & Libraries
C Library Reference
R
re_exec()
Execute a regular expression

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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        Compile a regular expression
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        Execute a regular expression
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        Compile a regular expression
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        Explain a regular expression error code
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        Compare a string with a compiled regular expression
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        Release memory allocated for a regular expression
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        Write a message to a client
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        Indicate how many parts from the ctp->iov structure to return to the client
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        Retrieve an Open Control Block
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        Associate an OCB with an open request
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        Return the pathname associated with an ID
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        Request to pause a message
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        Run a callback to resume processing of a paused message
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        Reserve a system resource for a process
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        Get major and minor device numbers
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        Detach a major and minor number
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        Query the resource database
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Typographical Conventions, Support, and Licensing
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re_exec()

QNX SDP8.0C Library ReferenceAPIDeveloper

Execute a regular expression

Synopsis:

#include <unix.h>

int re_exec( char *s );

Arguments:

s: A pointer to the string that you want to compare to the current regular expression. This string must end with a null byte and may include newline characters.

Library:

libregex

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

Description:

The re_exec() function compares the string pointed to by the string argument with the last regular expression passed to re_comp().

The re_comp() and re_exec() functions support simple regular expressions. The regular expressions of the form \{m\}, \{m,\}, or \{m,n\} aren't supported.

Note:

For better portability, use regcomp(), regerror(), and regexec() instead of these functions.

Returns:

1: The string matches the last compiled regular expression.
0: The string doesn't match the last compiled regular expression.
-1: The compiled regular expression is invalid (indicating an internal error).

Classification:


Safety:
Cancellation point	No
Signal handler	Yes
Thread	Yes

Page updated: August 09, 2024