Program that is executed in c but not in c?

Answer 1

Answer

1. When you save file using extension ".c" the program executes using "C" compiler and it cannot execute any other program which is not in "C".

So, we cannot execute program in "C" which is not in "C".

2. When you save file using extension ".cpp" the program executes using "C++" compiler and it can execute program of "C" but it should be saved with extension ".cpp".

So, There is a program which is not in "C++" can be executed in "C++" compiler.

Another answerYour question is ambiguous.

1. Okay in C++ but not in C:

int main (void)

{ cout << "Hello"; }

2. Okay in C but not in C++:

int main (void)

{

char hello [5] ="Hello";

printf ("%.5s\n", hello);

return 0;

}

Note: the question was not about the file extensions; it was about the compatibility (or lack of it) between languages C and C++. It is a well-known fact that many (but not every) C programs can be compiled with a C++ compilers.