...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Non-standard extension option.
bool allow_infinity_and_nan = false;
Allow Infinity
, -Infinity
,
and NaN
JSON literals.
These values are produced by some popular JSON implementations for positive
infinity, negative infinity and NaN special numbers respectively.