cyfhz的专栏

C 函数指针数组 #include int add(int a , int b) { return a + b; } int mul(int a, int b) { return a * b; } int main() { int (*op[2])(int a, int b); op[0] = add; op[1] = mul;

C 函数指针     #include #include typedef int (*cmp)(void *, void *); typedef struct book * Book; struct book { int id; char name[10]; }; void *max( void * array[], int len, cmp func); int cmp_

不用临时变量，实现两个数的交换 #include void swap(int *a, int *b) { *a = *a ^ *b; *b = *b ^ *a; *a = *a ^ *b; } int main() { int a, b; a = 10; b = 100; swap(&a, &b); printf("%d %d", a, b); }