truncate

truncate

Truncate an HFS File

Portability: UNIX compatible

SYNOPSIS
DESCRIPTION
RETURN VALUE
USAGE NOTES
RELATED FUNCTIONS

SYNOPSIS

#include <unistd.h>
int truncate(const char *pathname, 
             off_t length);

DESCRIPTION

truncate truncates or extends an UNIX System Services file. pathname specifies the name of the file. length specifies the size of the file. If the length is greater than the current file size, zero bytes are added to the file at the end.

For programs not compiled with the posix option, a style prefix may be required as part of the pathname . See "File Naming Conventions" in the SAS/C Library Reference, Volume 1, for further information.

RETURN VALUE

truncate returns 0 if successful, or -1 if unsuccessful.

USAGE NOTES

The truncate function can only be used with MVS 5.2.2 or a later release.

RELATED FUNCTIONS

ftruncate

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