Files
david 4a753b0b8d add forward declaration examples
add class & inheritance examples
2025-03-19 12:31:23 +01:00

21 lines
557 B
C++

#include "functions.h"
void functionB() {} // declared & defined
void functionC(); // declare
void functionD(); // foward declare
int main()
{
//functionA(); // compiler error, because function is declared & defined after this call
functionB(); // no error
//functionC(); // linker error, because function is declared, but not defined
functionD();
functionE();
//functionF(); // linker error, because header file was included multiple times with a definition
return 0;
}
void functionA() {} // declare & defined
void functionD() {} // definition