• c语言.函数指针数组


    函数指针: 一个指向函数的指针。一般用函数名表示。

    函数指针数组:元素为函数指针的数组。转移表。c语言中函数不可以定义为数组,只能通过定义函数指针来操作。

     1 #include<stdio.h>
     2 
     3 //function statement
     4 void func(void);
     5 void func0(void);
     6 void func1(void);
     7 void func2(void);
     8 //defined function pointer array ,& assigned
     9 int(* funcArr[])(void) = { func0,func1,func2 };
    10 
    11 int a;
    12 
    13 int main()
    14 {
    15     func();
    16     printf("main = %p
    ",main);
    17     //Function pointer
    18     int(*pfunc)(void) = func;
    19     pfunc();
    20 
    21     a = 2;
    22     while (a) {
    23         //function pointer array
    24         funcArr[a]();
    25     }
    26     
    27     system("pause");
    28     return 0;
    29 }
    30 //function definition
    31 void func(void) {
    32     printf("hello wworld
    ");
    33     return 0;
    34 }
    35 void func0() {
    36     printf("function0
    ");
    37     a--;
    38     return 0;
    39 }
    40 void func1() {
    41     printf("function1
    ");
    42     a--;
    43     return 0;
    44 }
    45 void func2() {
    46     printf("function2
    ");
    47     a--;
    48     return 0;
    49 }

    注意:

     " [ ] "优先级高于“ * ”。

    参考:

    https://blog.csdn.net/u010925447/article/details/74295692

    https://blog.csdn.net/qq_29924041/article/details/53933104

    https://blog.csdn.net/u014265347/article/details/54882661

  • 相关阅读:
    Air Raid HDU
    Strategic Game HDU
    Antenna Placement POJ
    Load Testing CodeForces
    Packmen CodeForces
    Codeforces Round #441 (Div. 2, by Moscow Team Olympiad)
    Codeforces Round #440 (Div. 2, based on Technocup 2018 Elimination Round 2)
    Dog Show CodeForces
    Sum of Nestings CodeForces
    Preparing for Merge Sort CodeForces
  • 原文地址:https://www.cnblogs.com/protogenoi/p/9699340.html
Copyright © 2020-2023  润新知