Content-type: text/html Man page of strcoll

strcoll

Section: Standard C Library Functions (3C)
Updated: 1 Nov 2003
Index Return to Main Contents
 

NAME

strcoll - string collation  

SYNOPSIS

#include <string.h>

int strcoll(const char *s1, const char *s2);  

DESCRIPTION

Both strcoll() and strxfrm(3C) provide for locale-specific string sorting. strcoll() is intended for applications in which the number of comparisons per string is small. When strings are to be compared a number of times, strxfrm(3C) is a more appropriate function because the transformation process occurs only once.

The strcoll() function does not change the setting of errno if successful.

Since no return value is reserved to indicate an error, an application wishing to check for error situations should set errno to 0, then call strcoll(), then check errno.  

RETURN VALUES

Upon successful completion, strcoll() returns an integer greater than, equal to, or less than zero in direct correlation to whether string s1 is greater than, equal to, or less than the string s2. The comparison is based on strings interpreted as appropriate to the program's locale for category LC_COLLATE (see setlocale(3C)).

On error, strcoll() may set errno, but no return value is reserved to indicate an error.  

ERRORS

The strcoll() function may fail if:

EINVAL The s1 or s2 arguments contain characters outside the domain of the collating sequence.

 

FILES

/usr/lib/locale/locale/locale.so.* LC_COLLATE database for locale

 

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
CSIEnabled
Interface StabilityStandard
MT-LevelMT-Safe with exceptions

The strcoll() function can be used safely in multithreaded applications, as long as setlocale(3C) is not being called to change the locale.  

SEE ALSO

localedef(1), setlocale(3C), string(3C), strxfrm(3C), wsxfrm(3C), attributes(5), environ(5), standards(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
ERRORS
FILES
ATTRIBUTES
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:37:19 GMT, October 02, 2010