Template Function lsst::afw::typehandling::operator<<(std::ostream&, Key<K, V> const&)

Function Documentation

template<typename K, typename V>
std::ostream &operator<<(std::ostream &os, Key<K, V> const &key)

Output operator for Key.

The output will use C++ template notation for the key; for example, a key “foo” pointing to an int may print as "foo<int>".

Provides basic exception safety if the output operator of

K is exception-safe.

Return

a reference to os

Parameters

• os: the desired output stream

• key: the key to print

Warning

the type name is compiler-specific and may be mangled or unintuitive; for example, some compilers say “i” instead of “int”