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strcasecmp (3)
  • strcasecmp (3) ( FreeBSD man: Библиотечные вызовы )
  • strcasecmp (3) ( Русские man: Библиотечные вызовы )
  • strcasecmp (3) ( Linux man: Библиотечные вызовы )
  • >> strcasecmp (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    strcasecmp, strncasecmp - case-insensitive string comparisons
     
    

    SYNOPSIS

    #include <strings.h>

    int strcasecmp(const char *s1, const char *s2);
    int strncasecmp(const char *
    s1, const char *s2, size_t n);
     

    DESCRIPTION

    The strcasecmp() function shall compare, while ignoring differences in case, the string pointed to by s1 to the string pointed to by s2. The strncasecmp() function shall compare, while ignoring differences in case, not more than n bytes from the string pointed to by s1 to the string pointed to by s2.

    In the POSIX locale, strcasecmp() and strncasecmp() shall behave as if the strings had been converted to lowercase and then a byte comparison performed. The results are unspecified in other locales.  

    RETURN VALUE

    Upon completion, strcasecmp() shall return an integer greater than, equal to, or less than 0, if the string pointed to by s1 is, ignoring case, greater than, equal to, or less than the string pointed to by s2, respectively.

    Upon successful completion, strncasecmp() shall return an integer greater than, equal to, or less than 0, if the possibly null-terminated array pointed to by s1 is, ignoring case, greater than, equal to, or less than the possibly null-terminated array pointed to by s2, respectively.  

    ERRORS

    No errors are defined.

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    None.  

    RATIONALE

    None.  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    The Base Definitions volume of IEEE Std 1003.1-2001, <strings.h>  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


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