- 450 名前：デフォルトの名無しさん mailto:sage [2014/01/14(火) 21:41:05.82 ]
- #include <stdio.h> /* >>419 two3.c */
typedef int (*INT_FUNCTION)(int, int);
int x_function(int a, int b){
int x = a * b;
return x;
}
int sum_function(int a, int b){
int sum = a + b;
return sum;
}
void two_three(INT_FUNCTION p){
printf("answer = %d\n", p(2, 3) );
}
int main(int argc, char *argv[]){
INT_FUNCTION p;
if(argc == 2 && *argv[1] == 'x') {
p = x_function;
} else {
p = sum_function;
}
two_three(p);
return 0;
}
/*
C:\work>two3
answer = 5
C:\work>two3 x
answer = 6
*/
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