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Added ""_sv string view operators

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This commit is contained in:
John Wellbelove 2023-02-13 11:40:36 +01:00
parent 2b96628850
commit eb3593d2ef
5 changed files with 73 additions and 0 deletions
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13
include/etl/string.h
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@ -43,6 +43,19 @@ SOFTWARE.
namespace etl
{
#if ETL_USING_CPP11
inline namespace literals
{
inline namespace string_literals
{
constexpr etl::string_view operator ""_sv(const char* str, size_t length) noexcept
{
return etl::string_view{ str, length };
}
}
}
#endif
typedef etl::ibasic_string<char> istring;
//***************************************************************************

13
include/etl/u16string.h
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@ -41,6 +41,19 @@ SOFTWARE.
namespace etl
{
#if ETL_USING_CPP11
inline namespace literals
{
inline namespace string_literals
{
constexpr etl::u16string_view operator ""_sv(const char16_t* str, size_t length) noexcept
{
return etl::u16string_view{ str, length };
}
}
}
#endif
typedef ibasic_string<char16_t> iu16string;
//***************************************************************************

13
include/etl/u32string.h
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@ -41,6 +41,19 @@ SOFTWARE.
namespace etl
{
#if ETL_USING_CPP11
inline namespace literals
{
inline namespace string_literals
{
constexpr etl::u32string_view operator ""_sv(const char32_t* str, size_t length) noexcept
{
return etl::u32string_view{ str, length };
}
}
}
#endif
typedef ibasic_string<char32_t> iu32string;
//***************************************************************************

13
include/etl/wstring.h
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@ -41,6 +41,19 @@ SOFTWARE.
namespace etl
{
#if ETL_USING_CPP11
inline namespace literals
{
inline namespace string_literals
{
constexpr etl::wstring_view operator ""_sv(const wchar_t* str, size_t length) noexcept
{
return etl::wstring_view{ str, length };
}
}
}
#endif
typedef ibasic_string<wchar_t> iwstring;
//***************************************************************************

21
test/test_string_view.cpp
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@ -1013,5 +1013,26 @@ namespace
CHECK(etl::hash<U16Text>()(u16text) == etl::hash<U16View>()(u16view));
CHECK(etl::hash<U32Text>()(u32text) == etl::hash<U32View>()(u32view));
}
//*************************************************************************
TEST(string_view_literal)
{
typedef etl::string_view View;
typedef etl::wstring_view WView;
typedef etl::u16string_view U16View;
typedef etl::u32string_view U32View;
using namespace etl::literals::string_literals;
View view = "Hello World"_sv;
WView wview = L"Hello World"_sv;
U16View u16view = u"Hello World"_sv;
U32View u32view = U"Hello World"_sv;
CHECK_TRUE((view == View{ "Hello World", etl::strlen("Hello World") }));
CHECK_TRUE((wview == WView{ L"Hello World", etl::strlen(L"Hello World") }));
CHECK_TRUE((u16view == U16View{ u"Hello World", etl::strlen(u"Hello World") }));
CHECK_TRUE((u32view == U32View{ U"Hello World", etl::strlen(U"Hello World") }));
}
};
}