The template instance std::numeric_limits<BloombergLP::bdldfp::Decimal64> is meaningfully specialized. Also means that BloombergLP::bdldfp::Decimal64 is a numeric type.
std::numeric_limits<BloombergLP::bdldfp::Decimal64>
BloombergLP::bdldfp::Decimal64
Declared in <bdldfp_decimal.h>
<bdldfp_decimal.h>
static bool const is_specialized = true;