C <wctype.h> - wint_t Type
The C <wctype.h> wint_t is an integer type that can hold any valid wide character and at least one more value (that corresponds to WEOF).
Some functions use this type to represent either a character of the wide character set or WEOF. This may be the same type as wchar_t or different depending on the system characteristics and library implementation.
This type is also defined in header <wchar.h>.
Example:
The example below shows the usage of wint_t type.
#include <stdio.h>
#include <wchar.h>
#include <wctype.h>
void try_widen(unsigned char c) {
//wint_t type is used to hold the character
//value of the extended character set
wint_t wc = btowc(c);
//WEOF is used to check whether the widening of
//character was successful or not
if(wc != WEOF)
printf("Single-byte character %#x widens to %#x\n", c, wc);
else
printf("Single-byte character %#x failed to widen\n", c);
}
int main (){
try_widen('A');
try_widen('\t');
try_widen(0xf9);
try_widen(0xdf);
return 0;
}
The output of the above code will be:
Single-byte character 0x41 widens to 0x41 Single-byte character 0x9 widens to 0x9 Single-byte character 0xf9 failed to widen Single-byte character 0xdf failed to widen
❮ C <wctype.h> Library
