In the C programming language (and in C++), NULL pointers are often used as sentinels for detecting the end of a data structure (e.g., the last node’s next pointer on a linked list, the first node’s previous pointer on a …
Read moreWhy do I often see int instead of bool returned by Boolean functions in C and C++?
There are various reasons for using the int data type to represent Boolean return values, function parameters, or variables in C and C++. Some are historical and traditional. Boolean types in C Before the C99 standard, there was no official …
Read moreWhat happened to the .h in C++ header files?
In C++, the standard library headers are not necessarily implemented as files, and thus have no file extensions. The compiler implementation is free to implement headers however they wish. They might be files, they might be built into the compiler, …
Read more