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Config: Implement 128-bit setting entry type

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This commit is contained in:
Elad
2025-10-03 16:01:52 +03:00
parent 4141f76105
commit e8aa1caa4e
3 changed files with 146 additions and 0 deletions
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Utilities/Config.cpp
+62
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@@ -166,6 +166,55 @@ bool try_to_uint64(u64* out, std::string_view value, u64 min, u64 max)
return true;
}
bool try_to_uint128(u128* out, std::string_view value)
{
if (value.empty())
{
if (out) cfg_log.error("cfg::try_to_uint128(): called with an empty string");
return false;
}
u64 result_low = 0, result_high = 0;
const char* start_high64 = value.data();
const char* end = value.data() + value.size();
if (start_high64[0] == '0' && value.size() >= 2 && (start_high64[1] == 'x' || start_high64[1] == 'X'))
{
// Hex support
start_high64 += 2;
}
const char* start_low64 = end - std::min<usz>(end - start_high64, 16);
// Hexadecimal-only
constexpr int base = 16;
auto ret = std::from_chars(start_low64, end, result_low, base);
if (ret.ec != std::errc() || ret.ptr != end)
{
if (out) cfg_log.error("cfg::try_to_uint128('%s'): invalid integer", value);
return false;
}
if (start_high64 == start_low64)
{
if (out) *out = result_low;
return true;
}
ret = std::from_chars(start_high64, start_low64, result_high, base);
if (ret.ec != std::errc() || ret.ptr != start_low64)
{
if (out) cfg_log.error("cfg::try_to_uint128('%s'): invalid integer", value);
return false;
}
if (out) *out = result_low + (u128{result_high} << 64);
return true;
}
std::vector<std::string> cfg::make_float_range(f64 min, f64 max)
{
return {std::to_string(min), std::to_string(max)};
@@ -278,6 +327,19 @@ bool cfg::try_to_enum_value(u64* out, decltype(&fmt_class_string<int>::format) f
return true;
}
std::string cfg::uint128::to_string(u128 value) noexcept
{
std::string result = "0x";
result.resize(result.size() + 32);
for (u32 i = 0; i < 32; i++)
{
result[result.size() - 1 - i] = "0123456789ABCDEF"[static_cast<u64>(value >> (i * 4)) % 16];
}
return result;
}
std::vector<std::string> cfg::try_to_enum_list(decltype(&fmt_class_string<int>::format) func)
{
std::vector<std::string> result;