fmtlib/fmt
1
0
Fork 1
mirror of https://github.com/fmtlib/fmt.git synced 2025-11-28 13:19:48 +01:00
Code Issues Packages Projects Releases Wiki Activity

Constexpr formatted_size (#3026)

Browse Source 
* Constexpr formatted_size

* Add C++20 tests for gcc 9 and 10

* Adjust unit test to require __cpp_lib_bit_cast
This commit is contained in:
Mark Santaniello
2022-08-10 09:35:30 -07:00
committed by GitHub
parent 7fb8d33f9d
commit fd93b633b8
3 changed files with 17 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/fmt/format.h
View File

@@ -1231,7 +1231,7 @@ FMT_CONSTEXPR20 auto format_decimal(Char* out, UInt value, int size)
template <typename Char, typename UInt, typename Iterator,
FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<Iterator>>::value)>
inline auto format_decimal(Iterator out, UInt value, int size)
FMT_CONSTEXPR inline auto format_decimal(Iterator out, UInt value, int size)
-> format_decimal_result<Iterator> {
// Buffer is large enough to hold all digits (digits10 + 1).
Char buffer[digits10<UInt>() + 1];
@@ -2137,29 +2137,29 @@ class counting_iterator {
FMT_UNCHECKED_ITERATOR(counting_iterator);
struct value_type {
template <typename T> void operator=(const T&) {}
template <typename T> FMT_CONSTEXPR void operator=(const T&) {}
};
counting_iterator() : count_(0) {}
FMT_CONSTEXPR counting_iterator() : count_(0) {}
size_t count() const { return count_; }
FMT_CONSTEXPR size_t count() const { return count_; }
counting_iterator& operator++() {
FMT_CONSTEXPR counting_iterator& operator++() {
++count_;
return *this;
}
counting_iterator operator++(int) {
FMT_CONSTEXPR counting_iterator operator++(int) {
auto it = *this;
++*this;
return it;
}
friend counting_iterator operator+(counting_iterator it, difference_type n) {
FMT_CONSTEXPR friend counting_iterator operator+(counting_iterator it, difference_type n) {
it.count_ += static_cast<size_t>(n);
return it;
}
value_type operator*() const { return {}; }
FMT_CONSTEXPR value_type operator*() const { return {}; }
};
template <typename Char, typename OutputIt>