Question

i’m confused about how to do inline functions in C++….

lets say this function. how would it be turned to an inline function

int maximum( int x, int y, int z )
{
   int max = x;
   if ( y > max )
      max = y;
   if ( z > max )
      max = z;
   return max;
}   

Answer 1

As others have said, you can use the inline keyword to tell the compiler you want your function inlined. But the inline keyword is just a compiler hint. The compiler can and will chose to ignore your request if it wants or needs to.

An alternative is to make your function a function template, which will often be blown out inline:

template<class Val>
Val maximum( Val x, Val y, Val z )
{
   Val max = x;
   if ( y > max )
      max = y;
   if ( z > max )
      max = z;
   return max;
}