c++ - 当我尝试调用 main 时，它工作了几次，但后来我遇到了 Segmentation fault

Question

为什么我看到段错误？代码:

#include<stdio.h>
 int main()
 {
  puts("WORK");
  main();
 }

[ ][ ]

Answer 1

C++ 标准 3.6.1/3 不允许您在 main() 中调用 main()

The function main shall not be used (3.2) within a program. The linkage (3.5) of main is implementation defined. A program that declares main to be inline or static is illformed. The name main is not otherwise reserved. [Example: member functions, classes, and enumerations can be called main, as can entities in other namespaces. ]

你最终会遇到堆栈溢出。(实际上，在 main 中调用 main 是一种未定义的行为)

used(3.2) 说:

An object or non-overloaded function is used if its name appears in a potentially-evaluated expression.

还有这个:

5.2.2.9
"Recursive calls are permitted, except to the function named main"