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tolower.0
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1992-08-10
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TOLOWER(3) UNIX 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 C3.159¡1989 (``ANSI C'').
BSD Experimental June 29, 1991 1