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constexpr for enum_type

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This commit is contained in:
John Wellbelove 2021-11-12 14:46:25 +00:00
parent c70db16a20
commit 2e927cd85d
2 changed files with 35 additions and 10 deletions
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18
include/etl/enum_type.h
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@ -84,15 +84,15 @@ SOFTWARE.
//*****************************************************************************
#define ETL_DECLARE_ENUM_TYPE(TypeName, ValueType) \
typedef ValueType value_type; \
TypeName() : value(static_cast<enum_type>(value_type())) {} \
TypeName(const TypeName &other) : value(other.value) {} \
TypeName(enum_type value_) : value(value_) {} \
TypeName& operator=(const TypeName &other) {value = other.value; return *this;} \
explicit TypeName(value_type value_) : value(static_cast<enum_type>(value_)) {} \
operator value_type() const {return static_cast<value_type>(value);} \
value_type get_value() const {return static_cast<value_type>(value);} \
enum_type get_enum() const {return value;} \
const char* c_str() const \
ETL_CONSTEXPR TypeName() : value(static_cast<enum_type>(value_type())) {} \
ETL_CONSTEXPR TypeName(const TypeName &other) : value(other.value) {} \
ETL_CONSTEXPR TypeName(enum_type value_) : value(value_) {} \
ETL_CONSTEXPR14 TypeName& operator=(const TypeName &other) {value = other.value; return *this;} \
ETL_CONSTEXPR explicit TypeName(value_type value_) : value(static_cast<enum_type>(value_)) {} \
ETL_CONSTEXPR operator value_type() const {return static_cast<value_type>(value);} \
ETL_CONSTEXPR value_type get_value() const {return static_cast<value_type>(value);} \
ETL_CONSTEXPR enum_type get_enum() const {return value;} \
ETL_CONSTEXPR14 const char* c_str() const \
{ \
switch (value) \
{

27
test/test_enum_type.cpp
View File

@ -53,7 +53,7 @@ namespace
SUITE(test_enum_type)
{
//*************************************************************************
TEST(Values)
TEST(test_values)
{
CHECK_EQUAL(0, enum_test::value_type(enum_test::ZERO));
CHECK_EQUAL(1, enum_test::value_type(enum_test::ONE));
@ -61,6 +61,31 @@ namespace
CHECK_EQUAL(4, enum_test::value_type(enum_test::FOUR));
}
//*************************************************************************
TEST(test_constexpr_values)
{
constexpr enum_test zero = enum_test::ZERO;
constexpr enum_test zero2(zero);
constexpr enum_test zero3 = zero;
constexpr int int_zero = zero;
constexpr int int_zero2 = zero.get_value();
constexpr enum_test enum_zero = zero;
constexpr enum_test enum_zero2 = zero.get_enum();
constexpr const char* string_zero = zero.c_str();
CHECK_EQUAL(0, zero.get_value());
CHECK_EQUAL(0, zero2.get_value());
CHECK_EQUAL(0, zero3.get_value());
CHECK_EQUAL(0, int_zero);
CHECK_EQUAL(0, int_zero2);
CHECK_EQUAL(0, enum_zero.get_value());
CHECK_EQUAL(0, enum_zero2.get_value());
CHECK_EQUAL(std::string("ZERO"), std::string(string_zero));
}
//*************************************************************************
TEST(test_c_str)
{