Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Semantics

Type	Object	Describes
`X`	`x`	any type
`T`	`t`	denotes behavior of the primary templates
`P`	`p`	denotes `std::pair<iterator,iterator>`
`A[sz]`	`a`	denotes an array of type `A` of size `sz`
`Char*`	`s`	denotes either `char` or `wchar_t`