示例

static void foo(){
printf("foo is not called in this file");
}


int main(int argc, char* argv[])
{
return 0;
}

解决方案
使用 static 函数或将其从文件中除去。

static void foo(){
printf("foo is not called in this file");
}


int main(int argc, char* argv[])
{
foo();
return 0;
}