fflush() is not working in Linux

Question

I used the fflush() in Linux GCC but it did not work. Are there any alternatives for that function? Here is my code:

#include
void main()
{
           


        

Answer 1

Don't use fflush, use this function instead:

#include 
void clean_stdin(void)
{
    int c;
    do {
        c = getchar();
    } while (c != '\n' && c != EOF);
}

fflush(stdin) depends of the implementation, but this function always works. In C, it is considered bad practice to use fflush(stdin).