Header files.md (375B)
1 +++ 2 title = 'Header files' 3 +++ 4 # Header files 5 - collections of declarations 6 - conventionally have extension .h 7 - #included near “head” of program 8 9 ## `#include` 10 - copies contents of header into program text 11 - for consistency, #include interface of class into file with its implementation 12 - handled by preprocessor (first compiler phase) — check what it does by g++ -E