King_DuckZ/dindexer
1
0
Fork 0
mirror of https://github.com/KingDuckZ/dindexer.git synced 2025-08-10 14:09:48 +00:00
Code Issues Releases Wiki Activity

Import Sprout. This is to fix the build on clang.

Browse source 
Sprout is needed because pow, log2 and log10 are constexpr on gcc,
but that's nonstandard. Sprout provides the constexpr version of
those functions.

Also fix warnings. I still get plenty of warnings about some suggested
paretheses, but it seems to be a bug from clang. See
https://llvm.org/bugs/show_bug.cgi?id=21629 for the bug report.
This commit is contained in:
King_DuckZ 2016-07-11 19:30:21 +01:00
parent d46cb322b9
commit 417e7105d3
5 changed files with 20 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

12
include/helpers/lexical_cast.hpp
View file

@ -21,10 +21,12 @@
#include "compatibility.h"
#include "helpers/sequence_bt.hpp"
#include "helpers/MaxSizedArray.hpp"
#include "sprout/math/log10.hpp"
#include "sprout/math/log2.hpp"
#include "sprout/math/pow.hpp"
#include <type_traits>
#include <utility>
#include <limits>
#include <cmath>
#include <cstdint>
#include <algorithm>
#include <string>
@ -112,7 +114,7 @@ namespace dinhelp {
static std::size_t count_digits ( T parValue ) a_pure;
static typename std::make_unsigned<T>::type make_unsigned ( T parValue ) a_pure;
static constexpr std::size_t count_digits_bt (std::size_t parNum) {
return (parNum == 0 ? 0 : static_cast<std::size_t>(std::log10(static_cast<double>(parNum)) / std::log10(static_cast<double>(base)))) + 1;
return (parNum == 0 ? 0 : static_cast<std::size_t>(sprout::log10(static_cast<double>(parNum)) / sprout::log10(static_cast<double>(base)))) + 1;
}
};
} //namespace implem
@ -133,7 +135,7 @@ namespace dinhelp {
static typename std::make_unsigned<T>::type make_unsigned ( T parValue ) a_pure;
static constexpr std::size_t count_digits_bt (std::size_t parNum) {
return (parNum == 0 ? 0 : static_cast<std::size_t>(std::log10(static_cast<double>(parNum)))) + 1 + (std::numeric_limits<T>::is_signed ? 1 : 0);
return (parNum == 0 ? 0 : static_cast<std::size_t>(sprout::log10(static_cast<double>(parNum)))) + 1 + (std::numeric_limits<T>::is_signed ? 1 : 0);
}
};
@ -153,7 +155,7 @@ namespace dinhelp {
static std::size_t count_digits ( T parValue ) a_pure;
static typename std::make_unsigned<T>::type make_unsigned ( T parValue ) a_pure;
static constexpr std::size_t count_digits_bt (std::size_t parNum) {
return (parNum == 0 ? 0 : static_cast<std::size_t>(std::log2(static_cast<double>(parNum)))) + 1;
return (parNum == 0 ? 0 : static_cast<std::size_t>(sprout::log2(static_cast<double>(parNum)))) + 1;
}
};
@ -163,7 +165,7 @@ namespace dinhelp {
std::size_t dec<T>::count_digits_implem (T parValue, dinhelp::bt::index_seq<Powers...>, dinhelp::bt::index_seq<Digits...>) {
typedef typename std::make_unsigned<T>::type UT;
static constexpr UT powers[] = { 0, static_cast<UT>(dinhelp::implem::power<10, Powers + 1>::value)... };
static constexpr std::size_t maxdigits[] = { count_digits_bt(static_cast<std::size_t>(::pow(2.0, Digits))) - (std::numeric_limits<T>::is_signed ? 1 : 0)... };
static constexpr std::size_t maxdigits[] = { count_digits_bt(static_cast<std::size_t>(sprout::pow(2.0, Digits))) - (std::numeric_limits<T>::is_signed ? 1 : 0)... };
const auto bits = sizeof(parValue) * CHAR_BIT - dinhelp::implem::count_leading_zeroes<T>(dinhelp::implem::abs(parValue));
static_assert(std::is_same<UT, decltype(dinhelp::implem::abs(parValue))>::value, "Unexpected type");
return (dinhelp::implem::abs(parValue) < powers[maxdigits[bits] - 1] ? maxdigits[bits] - 1 : maxdigits[bits]) + dinhelp::implem::is_negative<T>::check(parValue);