This page tries to list all the symbols that are available from the standard library in the namespace
std::literals::string_literals. The symbols are written as follows:
These operators are declared in the namespace
std::literals::string_literals, where both
string_literals are inline namespaces. Access to these operators can be gained with:
using namespace std::literals,
using namespace std::string_literals, or
using namespace std::literals::string_literals.
std::chrono::duration also defines operator""s to represent literal seconds, but it is an arithmetic literal:
10s are ten seconds, but
"10"s is a string.
s (since C++14)
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