You could just define the whole function before it is called, like this:
void do_nothing(){
}
main(){
do_nothing();
}
but if you define the function after it is called, the compiler will arrive at the function's calling before its actual definition. If you prototype your function earlier in the code than the function's call, the compiler will look for the function first.
Hope I was able to help.
Prototyping is optional in C, though highly recommended.
Nothing, it is a security hole. Use 'fgets' instead.
The c language does not have template functions. That is a c++ thing.
C language doesn't say anything about graphics, it is platform-dependent.
Include the header file math.h and use the function acos(d)
To specify the return-type of the function.
You can use the pow() function in math.h.
Prototyping is optional in C, though highly recommended.
You cannot have a function named else, because it is a reserved word.
Use the atoi() or atol() function.
Nothing, it is a security hole. Use 'fgets' instead.
The c language does not have template functions. That is a c++ thing.
Function 'clrscr' is not part of the C language. Or the standard libraries. It is MS-DOS specific function, use the help for details (clrscr means clear the screen).
C language doesn't say anything about graphics, it is platform-dependent.
Include the header file math.h and use the function acos(d)
Use function open or creat or fopen.
In UNIX: use function chmod