Compiler Warning (level 1) C4822
'member' : local class member function does not have a body
Remarks
A local class member function was declared but not defined in the class. To use a local class member function, you must define it in the class. You can't declare it in class and define it out of class.
Any out-of-class definition for a local class member function is an error.
In Visual Studio 2019 and later, C4822 is an off-by-default warning.
Example
The following sample generates C4822:
// C4822.cpp
// compile with: /W1
int main() {
struct C {
void func1(int); // C4822
// try the following line instead
// void func1(int){}
};
}