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int_traits -> uint32_or_64_t

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This commit is contained in:
Victor Zverovich
2019-07-03 16:01:21 -07:00
parent 1289782f06
commit c286ffc88d
4 changed files with 10 additions and 15 deletions
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16
include/fmt/format.h
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@@ -606,12 +606,11 @@ FMT_CONSTEXPR bool is_negative(T) {
return false;
}
template <typename T> struct int_traits {
// Smallest of uint32_t and uint64_t that is large enough to represent
// all values of T.
using main_type =
conditional_t<std::numeric_limits<T>::digits <= 32, uint32_t, uint64_t>;
};
// Smallest of uint32_t and uint64_t that is large enough to represent all
// values of T.
template <typename T>
using uint32_or_64_t =
conditional_t<std::numeric_limits<T>::digits <= 32, uint32_t, uint64_t>;
// Static data is placed in this class template for the header-only config.
template <typename T = void> struct FMT_EXTERN_TEMPLATE_API basic_data {
@@ -1273,8 +1272,7 @@ template <typename Range> class basic_writer {
// Writes a decimal integer.
template <typename Int> void write_decimal(Int value) {
typedef typename internal::int_traits<Int>::main_type main_type;
main_type abs_value = static_cast<main_type>(value);
auto abs_value = static_cast<uint32_or_64_t<Int>>(value);
bool is_negative = internal::is_negative(value);
if (is_negative) abs_value = 0 - abs_value;
int num_digits = internal::count_digits(abs_value);
@@ -1286,7 +1284,7 @@ template <typename Range> class basic_writer {
// The handle_int_type_spec handler that writes an integer.
template <typename Int, typename Spec> struct int_writer {
typedef typename internal::int_traits<Int>::main_type unsigned_type;
using unsigned_type = uint32_or_64_t<Int>;
basic_writer<Range>& writer;
const Spec& spec;