TOWLOWER(3) BSD Programmer's Manual TOWLOWER(3)
towlower - wide character case letter conversion utilities
#include <wctype.h> wint_t towlower(wint_t wc); wint_t towupper(wint_t wc);
The towlower() function converts an upper-case wide character to the corresponding lower-case letter. The towupper() function converts an lower-case wide character to the corresponding upper-case letter.
If the argument is an upper/lower-case letter, the tolower() function re- turns the corresponding counterpart if there is one; otherwise the argu- ment is returned unchanged.
tolower(3), toupper(3)
The functions conform to ISO/IEC 9899/AMD1:1995 ("ISO C90, Amendment 1") and ISO/IEC 9899:1999 ("ISO C99"). MirBSD #10-current December 22, 2000 1