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Modified return types

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This commit is contained in:
John Wellbelove 2024-03-27 21:01:05 +00:00
parent f1d80ba577
commit 4bc8d00737
1 changed files with 16 additions and 32 deletions
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48
include/etl/compare.h
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@ -42,61 +42,56 @@ SOFTWARE.
//*****************************************************************************
namespace etl
{
struct compare_types
{
typedef bool result_type;
enum cmp_result
{
Less = 0,
Equal = 1,
Greater = 2
};
};
//***************************************************************************
/// Defines <=, >, >=, ==, !=, <=> in terms of <
/// Default implementation of TLess is etl::less
//***************************************************************************
template <typename T, typename TLess = etl::less<T> >
struct compare : public compare_types
struct compare
{
enum cmp_result
{
Less = -1,
Equal = 0,
Greater = 1
};
typedef typename etl::parameter_type<T>::type first_argument_type;
typedef typename etl::parameter_type<T>::type second_argument_type;
static ETL_CONSTEXPR result_type lt(first_argument_type lhs, second_argument_type rhs)
static ETL_CONSTEXPR bool lt(first_argument_type lhs, second_argument_type rhs)
{
return TLess()(lhs, rhs);
}
static ETL_CONSTEXPR result_type gt(first_argument_type lhs, second_argument_type rhs)
static ETL_CONSTEXPR bool gt(first_argument_type lhs, second_argument_type rhs)
{
return TLess()(rhs, lhs);
}
static ETL_CONSTEXPR result_type lte(first_argument_type lhs, second_argument_type rhs)
static ETL_CONSTEXPR bool lte(first_argument_type lhs, second_argument_type rhs)
{
return !gt(lhs, rhs);
}
static ETL_CONSTEXPR result_type gte(first_argument_type lhs, second_argument_type rhs)
static ETL_CONSTEXPR bool gte(first_argument_type lhs, second_argument_type rhs)
{
return !lt(lhs, rhs);
}
static ETL_CONSTEXPR result_type eq(first_argument_type lhs, second_argument_type rhs)
static ETL_CONSTEXPR bool eq(first_argument_type lhs, second_argument_type rhs)
{
return gte(lhs, rhs) && lte(lhs, rhs);
}
static ETL_CONSTEXPR result_type ne(first_argument_type lhs, second_argument_type rhs)
static ETL_CONSTEXPR bool ne(first_argument_type lhs, second_argument_type rhs)
{
return !eq(lhs, rhs);
}
static ETL_CONSTEXPR cmp_result cmp(first_argument_type lhs, second_argument_type rhs)
{
return lt(lhs, rhs) ? Less : gt(lhs, rhs) ? Greater : Equal;
return lt(lhs, rhs) ? cmp_result::Less : gt(lhs, rhs) ? cmp_result::Greater : cmp_result::Equal;
}
};
@ -106,18 +101,7 @@ namespace etl
template <typename T, typename TLess = etl::less<T>>
ETL_CONSTEXPR14 int three_way_compare(const T& lhs, const T& rhs)
{
if (lhs < rhs)
{
return -1;
}
else if (lhs > rhs)
{
return 1;
}
else
{
return 0;
}
return etl::compare<T>::cmp(lhs, rhs);
}
}