void sum_diff( float op1, float op2, float *psum, float *pdiff );

其中op1和op2是輸入的兩個實數，psum和pdiff是計算得出的和與差。

程式碼

#include <stdio.h>

void sum_diff( float op1, float op2, float *psum, float *pdiff );

int main()

{

float a, b, sum, diff;

scanf("%f %f", &a, &b);

sum_diff(a, b, &sum, &diff);

printf("The sum is %.2f\nThe diff is %.2f\n", sum, diff);

return 0;

}

void sum_diff( float op1, float op2, float *psum, float *pdiff )

{

*psum=op1+op2;

*pdiff=op1-op2;

}