Understanding C++/Quick Reference

Preprocessor #include <stdio.h> includes contents of stdio.h #error text display text as compile time error #warning text display text as compile time warning #pragma compiler specific options #define M define M #undef M undefine M #if (condition) conditional compiling #ifdef M compiled if M is defined #ifndef M compiled if M is not defined #elif (condition) conditional compiling #else conditional compiling #endif end conditional section defined() is macro defined. !defined() is macro not defined M ## D combines M and D into MD #M treat M as string "M" Syntax if (bool expr) block [else block] for ([expr];[condition];[expr]) block while (condition) block do { } while (condition) type identifier([type identifier, ...]); type identifier([type identifier, ...]) { } public] type, ...]; public] type, ...] { [private:] }; private] type, ...]; private] type, ...] { [public:] }; union identifier; union identifier { type identifier; ... }; enum identifier; enum identifier { identifier [=int_value], ... }; |- | typedef type identifier'';''' Logical AND (&&) and Logical OR (||) Lookup Table Logical OR: OR True False True True True False True False Logical AND: AND True False True True False False False False Logical XOR: XOR True False True False True False True False