How to store special characters in strings and print to files?

Question

Recently I’ve been working on a C project that involves printing some strings in a txt file. However, when I put special characters and accents are printed some strange symbols, like ‡ and Æ. I made an example code showing more or less what I need.

#include <stdio.h>
#include <stdlib.h>
#include <locale.h>

int main(int argc, char *argv[]) {
    setlocale(LC_ALL, "Portuguese");

char teste[100];

printf("Frase: "); /*Usei a Frase "Gabriel Fogaça não perguntará em vão" para os testes*/
gets(teste);

printf("\n\nResultado: %s\n", teste);

FILE* arq = fopen("teste.txt", "w+");

    fprintf(arq, "%s", teste);

fclose(arq);

return 0;

}

By the way, when I use "setlocale" the print gets bugged up at the prompt, but that’s the least. What I really need is to be able to print the string in the txt file.

Answer 1

The problem is that you are setting the locale to an encoding (probably ISO 8859-1, which uses only one byte per character) but the terminal must be using UTF-8 (variable number of bytes per character) which is the default nowadays.

Try running the program without calling the setlocale function.