cprimer_study/c03_data/floaterr.c

/* floaterr.c - 演示舍入错误 */
#include <stdio.h>

int main(void)
{
    float a, b;

    b = 2.0e20 + 1.0;
    a = b - 2.0e20;
    
    printf("%f \n", a);
    
    return 0;
}