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Add helper for count_digits

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This commit is contained in:
Daniel Chabrowski
2018-11-19 17:15:39 +01:00
parent 14a071c478
commit f09d0f2301
2 changed files with 10 additions and 2 deletions
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10
include/spdlog/details/fmt_helper.h
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@@ -18,6 +18,7 @@ inline spdlog::string_view_t to_string_view(const fmt::basic_memory_buffer<char,
{
return spdlog::string_view_t(buf.data(), buf.size());
}
template<size_t Buffer_Size1, size_t Buffer_Size2>
inline void append_buf(const fmt::basic_memory_buffer<char, Buffer_Size1> &buf, fmt::basic_memory_buffer<char, Buffer_Size2> &dest)
{
@@ -42,6 +43,13 @@ inline void append_int(T n, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
dest.append(i.data(), i.data() + i.size());
}
template<typename T>
inline unsigned count_digits(T n)
{
using count_type = std::conditional<(sizeof(std::size_t) > sizeof(std::uint32_t)), std::uint64_t, std::uint32_t>::type;
return fmt::internal::count_digits(static_cast<count_type>(n));
}
template<size_t Buffer_Size>
inline void pad2(int n, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
{
@@ -69,7 +77,7 @@ template<typename T, size_t Buffer_Size>
inline void pad_uint(T n, unsigned int width, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
{
static_assert(std::is_unsigned<T>::value, "append_uint must get unsigned T");
auto digits = fmt::internal::count_digits(static_cast<uint64_t>(n));
auto digits = count_digits(n);
if (width > digits)
{
const char *zeroes = "0000000000000000000";