The simplest difference between the two is that "->" dereferences a pointer before it goes to look at that objects fields, function etc. whereas "." doesn't dereference first. Use "->" when you …

I am a C guy and I'm trying to understand some C++ code. I have the following function declaration:

Dec 28, 2015 · Closed 9 years ago. These are two simple samples in C++ written on Dev-cpp C++ 5.4.2:

I found this line of a code in a class which I have to modify: ::Configuration * tmpCo = m_configurationDB;//pointer to current db and I don't know what exactly means the double …

This may seem like pedantry (mainly because it is :) ) but in C++, x++ is a rvalue with the value of x before increment, x++ is an lvalue with the value of x after an increment. Neither expression …

Nov 24, 2017 · This is called the three-way comparison operator. According to the P0515 paper proposal: There’s a new three-way comparison operator, <=>. The expression a <=> b returns …

(condition) ? true-clause : false-clause It's most commonly used in assignment operations, although it has other uses as well. The ternary operator ? is a way of shortening an if-else …

The meaning of #ifdef is that the code inside the block will be included in the compilation only if the mentioned preprocessor macro is defined. Similarly, #if means that the block will be …

Possible Duplicate: What are the differences between pointer variable and reference variable in C++? This is confusing me: class CDummy { public: int isitme (CDummy&amp; param); }; int …

Separation of implementation details (aka definitions in foo.cpp) from which versions are actually compiled (in foo-impl.cpp) and declarations (in foo.h). I dislike that most C++ templates are …