Why are Unicode characters displayed incorrectly in the terminal using GCC?
I wrote a small C program:
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
int main() {
wprintf(L"%s\n", setlocale(LC_ALL, "C.UTF-8"));
wchar_t chr = L'┐';
wprintf(L"%c\n", chr);
}
Why doesn't this print the character ┐
?
Instead, he is typing gibberish. 
I checked:
- tried compiling without setlocale, same result
- the terminal itself can print the character, I can copy it to the terminal from a text editor, this is gnome-terminal on Ubuntu
- GCC version - 4.8.2
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1 answer
wprintf
is a version printf
that accepts a wide string as a format string, but otherwise behaves the same: %c
is still treated as char
, not wchar_t
. So you need to use %lc
wide character to format instead . And since your strings are ASCII, you can use printf
. For example:
int main() {
printf("%s\n", setlocale(LC_ALL, "C.UTF-8"));
wchar_t chr = L'┐';
printf("%lc\n", chr);
}
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