Array of int to string conversion in C-CodePudding

I'm trying to convert an array of integers into a string in C. FOr instance I have the following code:

 int number[] = {1,3,2,0};
 char c[5];
 for(int i = 0 ; i < 4; i    ){
        c[i] = number[i];
    }
printf("%s", c);

It however outputs smiley faces or hearts and I am not sure why.

CodePudding user response：

When you printf characters, it takes the ASCII symbol for that number.

Your numbers 1, 3, 2, 0 are SOH, ETX, STX, which are non-printable characters.

Try the numbers 65, 66 for example, they are letters.

CodePudding user response：

The code shown is not giving you any output as it will not compile.

It is hard to say what you want to archive but here you have an example:

int main(void)
{
    int number[] = {1,3,2,0};
    char c[sizeof(number) / sizeof(number[0])   1] = {0,};
    char d[sizeof(number) / sizeof(number[0])][10];

    for(int i = 0 ; i < 4; i    ){
        c[i] = number[i] % 10   '0';
        snprintf(d[i], 10, "%d", number[i]);
    }
    printf("%s\n", c);

    for(int i = 0 ; i < 4; i    ){
        printf("%s\n",d[i]);
    }

}