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c++syntaxconstructorargumentsidentifier

What is the meaning of leading underscores in a C++ constructor?

OK I am not a very experienced C++ programmer, but I was wondering what is the significance of the underscores in the arguments of the following constructor? 

class floatCoords
 {
 public:
  floatCoords(float _x, float _y, float _width, float _height)
   : x(_x), y(_y), width(_width), height(_height)
  {

  }
  float x, y, width, height;
  ...
Solution

  • It's just a convenient naming convention, it means nothing to the language. Just be sure you don't follow it with an upper-case letter: What does double underscore ( __const) mean in C?