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AK: Add support for AK::StringView literals with operator""sv

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A new operator, operator""sv was added as of C++17 to support
string_view literals. This allows string_views to be constructed
from string literals and with no runtime cost to find the string
length.

See: https://en.cppreference.com/w/cpp/string/basic_string_view/operator%22%22sv

This change implements that functionality in AK::StringView.
We do have to suppress some warnings about implementing reserved
operators as we are essentially implementing STL functions in AK
as we have no STL :).
This commit is contained in:
Brian Gianforcaro 2021-02-24 04:50:00 -08:00 • committed by Andreas Kling
parent a48d54dfc5
commit 31e1b08e15
4 changed files with 17 additions and 3 deletions
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9
AK/Tests/TestStringView.cpp
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@ -59,6 +59,15 @@ TEST_CASE(compare_views)
EXPECT_EQ(view1, "foo");
}
TEST_CASE(string_view_literal_operator)
{
StringView literal_view = "foo"sv;
String test_string = "foo";
EXPECT_EQ(literal_view.length(), test_string.length());
EXPECT_EQ(literal_view, test_string);
}
TEST_CASE(starts_with)
{
String test_string = "ABCDEF";