Synopsis
Declared in <bslfmt_formatterbase.h>
template<class t_DURATION>
struct FormatterBase_IsStdChronoHhMmSs<std::chrono::hh_mm_ss<t_DURATION>>;Declared in <bslfmt_formatterbase.h>
template<class t_DURATION>
struct FormatterBase_IsStdChronoHhMmSs<std::chrono::hh_mm_ss<t_DURATION>>;