4.4BSD/usr/share/man/cat3/tolower.0

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TOLOWER(3)                  BSD Programmer's Manual                 TOLOWER(3)

NNAAMMEE
     ttoolloowweerr - upper case to lower case letter conversion

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<ccttyyppee..hh>>

     _i_n_t
     ttoolloowweerr(_i_n_t _c);

DDEESSCCRRIIPPTTIIOONN
     The ttoolloowweerr() function converts an upper-case letter to the corresponding
     lower-case letter.

RREETTUURRNN VVAALLUUEESS
     If the argument is an upper-case letter, the ttoolloowweerr() function returns
     the corresponding lower-case letter if there is one; otherwise the argu-
     ment is returned unchanged.

SSEEEE AALLSSOO
     isascii(3),  isalnum(3),  isalpha(3),  iscntrl(3),  isdigit(3),
     isgraph(3),  islower(3),  isprint(3),  ispunct(3),  isspace(3),
     isupper(3),  isxdigit(3),  toascii(3),  toupper(3),  stdio(3) ascii(7)

SSTTAANNDDAARRDDSS
     The ttoolloowweerr() function conforms to ANSI C X3.159-1989 (``ANSI C '').

4.4BSD                           June 4, 1993                                1