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TOWLOWER(3) Library Functions Manual TOWLOWER(3)

towlower, towupperwide-character case letter conversion utilities

#include <wctype.h>

towlower(wint_t wc);

towupper(wint_t wc);

The () function converts an upper-case wide character to the corresponding lower-case letter. The () 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 returns the corresponding counterpart if there is one; otherwise the argument 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”).

April 7, 2014 OpenBSD-6.1