man pages for library components, install the libstdc++-docs package. This will provide man page information for nearly all resources provided by the library; for example, to view information about the vector container, use its fully-qualified component name:
man std::vector
std::vector(3) std::vector(3)
NAME
std::vector -
A standard container which offers fixed time access to individual
elements in any order.
SYNOPSIS
Inherits std::_Vector_base< _Tp, _Alloc >.
Public Types
typedef _Alloc allocator_type
typedef __gnu_cxx::__normal_iterator< const_pointer, vector >
const_iterator
typedef _Tp_alloc_type::const_pointer const_pointer
typedef _Tp_alloc_type::const_reference const_reference
typedef std::reverse_iterator< const_iterator >
libstdc++-docs package also provides manuals and reference information in HTML form at the following directory:
file:///usr/share/doc/libstdc++-docs-version/html/spine.html