20
Library introduction
[library]
20.5
Library-wide requirements
[requirements]
20.5.4
Constraints on programs
[constraints]
20.5.4.5
Derived classes
[derived.classes]
1
#
Virtual member function signatures defined
for a base class in the C++ standard
library may be overridden in a derived class defined in the program (
[class.virtual]
)
.