Write the value of the specified printer object to the specified output stream in a single-line format, and return a reference to stream. If stream is not valid on entry, this operation has no effect. Note that this human-readable format is not fully specified, can change without notice, and is logically equivalent to: ` print(stream, 0, -1); `
Declared in <bdlb_variantprinter.h>
template<class t_VARIANT>
std::ostream&
operator<<(
std::ostream& stream,
VariantPrinter<t_VARIANT> const& printer);