C <wchar.h> - wctob() Function
The C <wchar.h> wctob() function narrows a wide character wc to its single-byte character equivalent only if wc represents a multibyte character with length 1 in initial shift state, otherwise returns EOF.
Syntax
int wctob (wint_t wc);
Parameters
wc |
Specify the wide character to narrow. |
Return Value
Returns single-byte character representation of wc if wc represents a multibyte character with length 1 in initial shift state, otherwise returns EOF.
Example:
The example below shows the usage of wctob() function.
#include <wchar.h>
#include <stdio.h>
void try_narrowing(wchar_t wc) {
int c = wctob(wc);
//EOF is used to check whether the widening of
//character was successful or not
if(c != EOF)
wprintf(L"Wide character %#x narrowed to %#x\n", wc, c);
else
wprintf(L"Wide character %#x failed to be narrowed\n", wc);
}
int main (){
try_narrowing(L'A');
try_narrowing(L'\t');
try_narrowing(0x61);
try_narrowing(0xe5b);
return 0;
}
The output of the above code will be:
Wide character 0x41 narrowed to 0x41 Wide character 0x9 narrowed to 0x9 Wide character 0x61 narrowed to 0x61 Wide character 0xe5b failed to be narrowed
❮ C <wchar.h> Library
