Function pointers in C
Let's start with a basic function which we will be pointing to:
int addInt(int n, int m) {
return n+m;
}
First thing, let's define a pointer to a function which receives 2 int
s and returns an int
:
Let's start with a basic function which we will be pointing to:
int addInt(int n, int m) {
return n+m;
}
First thing, let's define a pointer to a function which receives 2 int
s and returns an int
:
Q: 為什麼Interrupt 要分成High level ISR 和 Low level ISR? 簡述Interrupt 如何在電腦中運行。
https://docs.oracle.com/cd/E19253-01/816-4854/interrupt-18/index.html from Oracle : Writing Device driver
#include <iostream>
int main(int argc, char **argv)
{
std::cout << 25u - 50;
return 0;
}
其結果是 4294967271, 即 2^32-1-24
原因是25 unsigned number -50 結果也是一個unsigned number