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/***********************************************
*
* \Filename funcptr_shift_tbl.c
*
* \Author XXX from Xidian
* 2550572497@qq.com
*
* \Desc
*
* \Modified History
*
*
* \CreateTime 2017-11-28 20:24:58
*
***********************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
double add_(double x, double y);
double sub_(double x, double y);
double mul_(double x, double y);
double div_(double x, double y);
double (*oper_func[])(double x, double y) = {add_, sub_, mul_, div_};
int main(int argc, char* argv[])
{
double x = 3.1, y = 3.2;
for(int i=0; i<4; i++) {
oper_func[i](x, y);
}
return 0;
}
double add_(double x, double y) {
printf("x+y = %lf\n", x+y);
return x+y;
}
double sub_(double x, double y) {
printf("x-y = %lf\n", x-y);
return x-y;
}
double mul_(double x, double y) {
printf("x*y = %lf\n", x*y);
return x*y;
}
double div_(double x, double y) {
printf("x/y = %lf\n", x/y);
return x/y;
}
