case(3) [debian man page]

case(3) 						     Library Functions Manual							   case(3)

NAME

       case - convert ASCII uppercase bytes to lowercase

SYNTAX

       #include <case.h>

       void case_lowers(s);
       void case_lowerb(s,len);

       int case_diffs(s,t);
       int case_equals(s,t);
       int case_starts(s,t);

       int case_diffb(s,len,t);
       int case_startb(s,len,t);

       char *s;
       char *t;
       unsigned int len;

DESCRIPTION

       case_lowers converts each uppercase byte in the string s to lowercase.  s must be 0-terminated.

       case_lowerb converts each uppercase byte in the buffer s, of length len, to lowercase.

       case_diffs lexicographically compares lowercase versions of the strings s and t.  It returns something positive, negative, or zero when the
       first is larger than, smaller than, or equal to the second.  s and t must be 0-terminated.

       case_equals means !case_diffs.

       case_starts returns 1 if a lowercase version of s starts with a lowercase version of t.	s and t must be 0-terminated.

       case_diffb lexicographically compares lowercase versions of the buffers s and t, each of length len.  It returns something positive,  nega-
       tive, or zero when the first is larger than, smaller than, or equal to the second.

       case_startb  returns  1	if a lowercase version of the buffer s, of length len, starts with a lowercase version of the string t.  t must be
       0-terminated.

       The case routines are ASCII-specific.  They are suitable for programs that handle case-independent networking protocols.

       All comparisons are performed on unsigned bytes.

SEE ALSO

       byte_diff(3), byte_equal(3), str_diff(3), str_equal(3), str_start(3)

																	   case(3)

towlower(3)						     Library Functions Manual						       towlower(3)

NAME

       towlower, towupper - Convert uppercase and lowercase wide characters

LIBRARY

       Standard C Library (libc)

SYNOPSIS

       #include <wctype.h>

       wint_t towlower (      wint_t wc);

       wint_t towupper (      wint_t wc);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       towlower(), towupper(): XSH5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

PARAMETERS

       Specifies the wide character to convert.

DESCRIPTION

       The  towlower()	function converts the uppercase wide character specified by the wc parameter into the corresponding lowercase wide charac-
       ter. The towupper() function converts the lowercase wide character specified by the wc parameter  into  the  corresponding  uppercase  wide
       character. The behavior of the towlower() and towupper() functions are affected by the LC_CTYPE category of the program's locale.

       [Tru64  UNIX]  In  a locale where case conversion information is not defined, these functions determine the case of characters according to
       the rules of the C locale.

RETURN VALUES

       In the towlower() function, if the wc parameter contains an uppercase wide character that has a	corresponding  lowercase  wide	character,
       that wide character is returned. Otherwise, the wc parameter is returned unchanged.

       In the towupper() function, if the wc parameter contains a lowercase wide character that has a corresponding uppercase wide character, that
       wide character is returned. Otherwise, the wc parameter is returned unchanged.

RELATED INFORMATION

       Functions: conv(3), setlocale(3), towctrans(3), wctrans(3)

       Standards: standards(5) delim off

																       towlower(3)