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Defined in header <wctype.h> | ||
wint_t towupper( wint_t wc); | (since C95) | |
Converts the given wide character to uppercase, if possible.
Contents |
| wc | - | wide character to be converted |
Uppercase version ofwc or unmodifiedwc if no uppercase version is listed in the current C locale.
Only 1:1 character mapping can be performed by this function, e.g. the uppercase form of 'ß' is (with some exceptions) the two-character string "SS", which cannot be obtained bytowupper.
ISO 30112 specifies which pairs of Unicode characters are included in this mapping.
#include <stdio.h>#include <wchar.h>#include <wctype.h>#include <locale.h> int main(void){wchar_t wc= L'\u017f';// Latin small letter Long S ('ſ')printf("in the default locale, towupper(%#x) = %#x\n", wc, towupper(wc));setlocale(LC_ALL,"en_US.utf8");printf("in Unicode locale, towupper(%#x) = %#x\n", wc, towupper(wc));}
Output:
in the default locale, towupper(0x17f) = 0x17fin Unicode locale, towupper(0x17f) = 0x53
(C95) | converts a wide character to lowercase (function)[edit] |
| converts a character to uppercase (function)[edit] | |
C++ documentation fortowupper | |
