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// © 2025 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// Test header-only ICU C++ APIs. Do not use other ICU C++ APIs.
// Non-default configuration:
#define U_SHOW_CPLUSPLUS_API 0
#include "unicode/utypes.h"
#if !UCONFIG_NO_COLLATION
#include <string_view>
#include "unicode/ucol.h"
#include "intltest.h"
namespace {
class UColHeaderOnlyTest : public IntlTest {
public:
UColHeaderOnlyTest() = default;
void runIndexedTest(int32_t index, UBool exec, const char*& name, char* par = nullptr) override;
void TestPredicateTypes();
};
void UColHeaderOnlyTest::runIndexedTest(int32_t index, UBool exec, const char*& name, char* /*par*/) {
if (exec) {
logln("TestSuite UColHeaderOnlyTest: ");
}
TESTCASE_AUTO_BEGIN;
TESTCASE_AUTO(TestPredicateTypes);
TESTCASE_AUTO_END;
}
class UCollatorWrapper {
public:
UCollatorWrapper(const char* loc, UErrorCode* status) : ucol(ucol_open(loc, status)) {}
~UCollatorWrapper() { ucol_close(ucol); }
operator UCollator*() { return ucol; }
private:
UCollator* ucol;
};
constexpr char16_t TEXT_CHAR16[] = u"char16";
#if !U_CHAR16_IS_TYPEDEF && (!defined(_LIBCPP_VERSION) || _LIBCPP_VERSION < 180000)
constexpr uint16_t TEXT_UINT16[] = {0x75, 0x69, 0x6e, 0x74, 0x31, 0x36, 0x00};
#endif
#if U_SIZEOF_WCHAR_T == 2
constexpr wchar_t TEXT_WCHAR[] = L"wchar";
#endif
constexpr char TEXT_CHAR[] = "char";
#if defined(__cpp_char8_t)
constexpr char8_t TEXT_CHAR8[] = u8"char8";
#endif
// Verify that the UCollator predicates handle all string types.
void UColHeaderOnlyTest::TestPredicateTypes() {
using namespace U_HEADER_NESTED_NAMESPACE;
IcuTestErrorCode status(*this, "TestPredicateTypes");
UCollatorWrapper ucol("", status);
status.assertSuccess();
const auto equal_to = collator::equal_to(ucol);
assertTrue("char16_t", equal_to(TEXT_CHAR16, TEXT_CHAR16));
assertTrue("u16string_view", equal_to(std::u16string_view{TEXT_CHAR16}, TEXT_CHAR16));
#if !U_CHAR16_IS_TYPEDEF && (!defined(_LIBCPP_VERSION) || _LIBCPP_VERSION < 180000)
assertTrue("uint16_t", equal_to(TEXT_UINT16, TEXT_UINT16));
assertTrue("basic_string_view<uint16_t>",
equal_to(std::basic_string_view<uint16_t>{TEXT_UINT16}, TEXT_UINT16));
#endif
#if U_SIZEOF_WCHAR_T == 2
assertTrue("wchar_t", equal_to(TEXT_WCHAR, TEXT_WCHAR));
assertTrue("wstring_view", equal_to(std::wstring_view{TEXT_WCHAR}, TEXT_WCHAR));
#endif
assertTrue("char", equal_to(TEXT_CHAR, TEXT_CHAR));
assertTrue("string_view", equal_to(std::string_view{TEXT_CHAR}, TEXT_CHAR));
#if defined(__cpp_char8_t)
assertTrue("char8_t", equal_to(TEXT_CHAR8, TEXT_CHAR8));
assertTrue("u8string_view", equal_to(std::u8string_view{TEXT_CHAR8}, TEXT_CHAR8));
#endif
}
} // namespace
IntlTest* createUColHeaderOnlyTest() {
return new UColHeaderOnlyTest();
}
#endif // !UCONFIG_NO_COLLATION
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