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30 // The Google C++ Testing and Mocking Framework (Google Test)
32 // This file implements just enough of the matcher interface to allow
33 // EXPECT_DEATH and friends to accept a matcher argument.
35 // IWYU pragma: private, include "testing/base/public/gunit.h"
36 // IWYU pragma: friend third_party/googletest/googlemock/.*
37 // IWYU pragma: friend third_party/googletest/googletest/.*
39 #ifndef GTEST_INCLUDE_GTEST_GTEST_MATCHERS_H_
40 #define GTEST_INCLUDE_GTEST_GTEST_MATCHERS_H_
45 #include <type_traits>
47 #include "gtest/gtest-printers.h"
48 #include "gtest/internal/gtest-internal.h"
49 #include "gtest/internal/gtest-port.h"
51 // MSVC warning C5046 is new as of VS2017 version 15.8.
52 #if defined(_MSC_VER) && _MSC_VER >= 1915
53 #define GTEST_MAYBE_5046_ 5046
55 #define GTEST_MAYBE_5046_
58 GTEST_DISABLE_MSC_WARNINGS_PUSH_(
59 4251 GTEST_MAYBE_5046_ /* class A needs to have dll-interface to be used by
61 /* Symbol involving type with internal linkage not defined */)
65 // To implement a matcher Foo for type T, define:
66 // 1. a class FooMatcherImpl that implements the
67 // MatcherInterface<T> interface, and
68 // 2. a factory function that creates a Matcher<T> object from a
71 // The two-level delegation design makes it possible to allow a user
72 // to write "v" instead of "Eq(v)" where a Matcher is expected, which
73 // is impossible if we pass matchers by pointers. It also eases
74 // ownership management as Matcher objects can now be copied like
77 // MatchResultListener is an abstract class. Its << operator can be
78 // used by a matcher to explain why a value matches or doesn't match.
80 class MatchResultListener {
82 // Creates a listener object with the given underlying ostream. The
83 // listener does not own the ostream, and does not dereference it
84 // in the constructor or destructor.
85 explicit MatchResultListener(::std::ostream* os) : stream_(os) {}
86 virtual ~MatchResultListener() = 0; // Makes this class abstract.
88 // Streams x to the underlying ostream; does nothing if the ostream
91 MatchResultListener& operator<<(const T& x) {
92 if (stream_ != nullptr) *stream_ << x;
96 // Returns the underlying ostream.
97 ::std::ostream* stream() { return stream_; }
99 // Returns true if and only if the listener is interested in an explanation
100 // of the match result. A matcher's MatchAndExplain() method can use
101 // this information to avoid generating the explanation when no one
102 // intends to hear it.
103 bool IsInterested() const { return stream_ != nullptr; }
106 ::std::ostream* const stream_;
108 GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener);
111 inline MatchResultListener::~MatchResultListener() {
114 // An instance of a subclass of this knows how to describe itself as a
116 class MatcherDescriberInterface {
118 virtual ~MatcherDescriberInterface() {}
120 // Describes this matcher to an ostream. The function should print
121 // a verb phrase that describes the property a value matching this
122 // matcher should have. The subject of the verb phrase is the value
123 // being matched. For example, the DescribeTo() method of the Gt(7)
124 // matcher prints "is greater than 7".
125 virtual void DescribeTo(::std::ostream* os) const = 0;
127 // Describes the negation of this matcher to an ostream. For
128 // example, if the description of this matcher is "is greater than
129 // 7", the negated description could be "is not greater than 7".
130 // You are not required to override this when implementing
131 // MatcherInterface, but it is highly advised so that your matcher
132 // can produce good error messages.
133 virtual void DescribeNegationTo(::std::ostream* os) const {
140 // The implementation of a matcher.
141 template <typename T>
142 class MatcherInterface : public MatcherDescriberInterface {
144 // Returns true if and only if the matcher matches x; also explains the
145 // match result to 'listener' if necessary (see the next paragraph), in
146 // the form of a non-restrictive relative clause ("which ...",
147 // "whose ...", etc) that describes x. For example, the
148 // MatchAndExplain() method of the Pointee(...) matcher should
149 // generate an explanation like "which points to ...".
151 // Implementations of MatchAndExplain() should add an explanation of
152 // the match result *if and only if* they can provide additional
153 // information that's not already present (or not obvious) in the
154 // print-out of x and the matcher's description. Whether the match
155 // succeeds is not a factor in deciding whether an explanation is
156 // needed, as sometimes the caller needs to print a failure message
157 // when the match succeeds (e.g. when the matcher is used inside
160 // For example, a "has at least 10 elements" matcher should explain
161 // what the actual element count is, regardless of the match result,
162 // as it is useful information to the reader; on the other hand, an
163 // "is empty" matcher probably only needs to explain what the actual
164 // size is when the match fails, as it's redundant to say that the
165 // size is 0 when the value is already known to be empty.
167 // You should override this method when defining a new matcher.
169 // It's the responsibility of the caller (Google Test) to guarantee
170 // that 'listener' is not NULL. This helps to simplify a matcher's
171 // implementation when it doesn't care about the performance, as it
172 // can talk to 'listener' without checking its validity first.
173 // However, in order to implement dummy listeners efficiently,
174 // listener->stream() may be NULL.
175 virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0;
177 // Inherits these methods from MatcherDescriberInterface:
178 // virtual void DescribeTo(::std::ostream* os) const = 0;
179 // virtual void DescribeNegationTo(::std::ostream* os) const;
184 // Converts a MatcherInterface<T> to a MatcherInterface<const T&>.
185 template <typename T>
186 class MatcherInterfaceAdapter : public MatcherInterface<const T&> {
188 explicit MatcherInterfaceAdapter(const MatcherInterface<T>* impl)
190 ~MatcherInterfaceAdapter() override { delete impl_; }
192 void DescribeTo(::std::ostream* os) const override { impl_->DescribeTo(os); }
194 void DescribeNegationTo(::std::ostream* os) const override {
195 impl_->DescribeNegationTo(os);
198 bool MatchAndExplain(const T& x,
199 MatchResultListener* listener) const override {
200 return impl_->MatchAndExplain(x, listener);
204 const MatcherInterface<T>* const impl_;
206 GTEST_DISALLOW_COPY_AND_ASSIGN_(MatcherInterfaceAdapter);
210 template <typename A, typename B>
211 bool operator()(const A& a, const B& b) const { return a == b; }
214 template <typename A, typename B>
215 bool operator()(const A& a, const B& b) const { return a != b; }
218 template <typename A, typename B>
219 bool operator()(const A& a, const B& b) const { return a < b; }
222 template <typename A, typename B>
223 bool operator()(const A& a, const B& b) const { return a > b; }
226 template <typename A, typename B>
227 bool operator()(const A& a, const B& b) const { return a <= b; }
230 template <typename A, typename B>
231 bool operator()(const A& a, const B& b) const { return a >= b; }
234 // A match result listener that ignores the explanation.
235 class DummyMatchResultListener : public MatchResultListener {
237 DummyMatchResultListener() : MatchResultListener(nullptr) {}
240 GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener);
243 // A match result listener that forwards the explanation to a given
244 // ostream. The difference between this and MatchResultListener is
245 // that the former is concrete.
246 class StreamMatchResultListener : public MatchResultListener {
248 explicit StreamMatchResultListener(::std::ostream* os)
249 : MatchResultListener(os) {}
252 GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener);
255 // An internal class for implementing Matcher<T>, which will derive
256 // from it. We put functionalities common to all Matcher<T>
257 // specializations here to avoid code duplication.
258 template <typename T>
261 // Returns true if and only if the matcher matches x; also explains the
262 // match result to 'listener'.
263 bool MatchAndExplain(const T& x, MatchResultListener* listener) const {
264 return impl_->MatchAndExplain(x, listener);
267 // Returns true if and only if this matcher matches x.
268 bool Matches(const T& x) const {
269 DummyMatchResultListener dummy;
270 return MatchAndExplain(x, &dummy);
273 // Describes this matcher to an ostream.
274 void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); }
276 // Describes the negation of this matcher to an ostream.
277 void DescribeNegationTo(::std::ostream* os) const {
278 impl_->DescribeNegationTo(os);
281 // Explains why x matches, or doesn't match, the matcher.
282 void ExplainMatchResultTo(const T& x, ::std::ostream* os) const {
283 StreamMatchResultListener listener(os);
284 MatchAndExplain(x, &listener);
287 // Returns the describer for this matcher object; retains ownership
288 // of the describer, which is only guaranteed to be alive when
289 // this matcher object is alive.
290 const MatcherDescriberInterface* GetDescriber() const {
297 // Constructs a matcher from its implementation.
298 explicit MatcherBase(const MatcherInterface<const T&>* impl) : impl_(impl) {}
300 template <typename U>
301 explicit MatcherBase(
302 const MatcherInterface<U>* impl,
303 typename std::enable_if<!std::is_same<U, const U&>::value>::type* =
305 : impl_(new internal::MatcherInterfaceAdapter<U>(impl)) {}
307 MatcherBase(const MatcherBase&) = default;
308 MatcherBase& operator=(const MatcherBase&) = default;
309 MatcherBase(MatcherBase&&) = default;
310 MatcherBase& operator=(MatcherBase&&) = default;
312 virtual ~MatcherBase() {}
315 std::shared_ptr<const MatcherInterface<const T&>> impl_;
318 } // namespace internal
320 // A Matcher<T> is a copyable and IMMUTABLE (except by assignment)
321 // object that can check whether a value of type T matches. The
322 // implementation of Matcher<T> is just a std::shared_ptr to const
323 // MatcherInterface<T>. Don't inherit from Matcher!
324 template <typename T>
325 class Matcher : public internal::MatcherBase<T> {
327 // Constructs a null matcher. Needed for storing Matcher objects in STL
328 // containers. A default-constructed matcher is not yet initialized. You
329 // cannot use it until a valid value has been assigned to it.
330 explicit Matcher() {} // NOLINT
332 // Constructs a matcher from its implementation.
333 explicit Matcher(const MatcherInterface<const T&>* impl)
334 : internal::MatcherBase<T>(impl) {}
336 template <typename U>
338 const MatcherInterface<U>* impl,
339 typename std::enable_if<!std::is_same<U, const U&>::value>::type* =
341 : internal::MatcherBase<T>(impl) {}
343 // Implicit constructor here allows people to write
344 // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes
345 Matcher(T value); // NOLINT
348 // The following two specializations allow the user to write str
349 // instead of Eq(str) and "foo" instead of Eq("foo") when a std::string
350 // matcher is expected.
352 class GTEST_API_ Matcher<const std::string&>
353 : public internal::MatcherBase<const std::string&> {
357 explicit Matcher(const MatcherInterface<const std::string&>* impl)
358 : internal::MatcherBase<const std::string&>(impl) {}
360 // Allows the user to write str instead of Eq(str) sometimes, where
361 // str is a std::string object.
362 Matcher(const std::string& s); // NOLINT
364 // Allows the user to write "foo" instead of Eq("foo") sometimes.
365 Matcher(const char* s); // NOLINT
369 class GTEST_API_ Matcher<std::string>
370 : public internal::MatcherBase<std::string> {
374 explicit Matcher(const MatcherInterface<const std::string&>* impl)
375 : internal::MatcherBase<std::string>(impl) {}
376 explicit Matcher(const MatcherInterface<std::string>* impl)
377 : internal::MatcherBase<std::string>(impl) {}
379 // Allows the user to write str instead of Eq(str) sometimes, where
380 // str is a string object.
381 Matcher(const std::string& s); // NOLINT
383 // Allows the user to write "foo" instead of Eq("foo") sometimes.
384 Matcher(const char* s); // NOLINT
388 // The following two specializations allow the user to write str
389 // instead of Eq(str) and "foo" instead of Eq("foo") when a absl::string_view
390 // matcher is expected.
392 class GTEST_API_ Matcher<const absl::string_view&>
393 : public internal::MatcherBase<const absl::string_view&> {
397 explicit Matcher(const MatcherInterface<const absl::string_view&>* impl)
398 : internal::MatcherBase<const absl::string_view&>(impl) {}
400 // Allows the user to write str instead of Eq(str) sometimes, where
401 // str is a std::string object.
402 Matcher(const std::string& s); // NOLINT
404 // Allows the user to write "foo" instead of Eq("foo") sometimes.
405 Matcher(const char* s); // NOLINT
407 // Allows the user to pass absl::string_views directly.
408 Matcher(absl::string_view s); // NOLINT
412 class GTEST_API_ Matcher<absl::string_view>
413 : public internal::MatcherBase<absl::string_view> {
417 explicit Matcher(const MatcherInterface<const absl::string_view&>* impl)
418 : internal::MatcherBase<absl::string_view>(impl) {}
419 explicit Matcher(const MatcherInterface<absl::string_view>* impl)
420 : internal::MatcherBase<absl::string_view>(impl) {}
422 // Allows the user to write str instead of Eq(str) sometimes, where
423 // str is a std::string object.
424 Matcher(const std::string& s); // NOLINT
426 // Allows the user to write "foo" instead of Eq("foo") sometimes.
427 Matcher(const char* s); // NOLINT
429 // Allows the user to pass absl::string_views directly.
430 Matcher(absl::string_view s); // NOLINT
432 #endif // GTEST_HAS_ABSL
434 // Prints a matcher in a human-readable format.
435 template <typename T>
436 std::ostream& operator<<(std::ostream& os, const Matcher<T>& matcher) {
437 matcher.DescribeTo(&os);
441 // The PolymorphicMatcher class template makes it easy to implement a
442 // polymorphic matcher (i.e. a matcher that can match values of more
443 // than one type, e.g. Eq(n) and NotNull()).
445 // To define a polymorphic matcher, a user should provide an Impl
446 // class that has a DescribeTo() method and a DescribeNegationTo()
447 // method, and define a member function (or member function template)
449 // bool MatchAndExplain(const Value& value,
450 // MatchResultListener* listener) const;
452 // See the definition of NotNull() for a complete example.
453 template <class Impl>
454 class PolymorphicMatcher {
456 explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {}
458 // Returns a mutable reference to the underlying matcher
459 // implementation object.
460 Impl& mutable_impl() { return impl_; }
462 // Returns an immutable reference to the underlying matcher
463 // implementation object.
464 const Impl& impl() const { return impl_; }
466 template <typename T>
467 operator Matcher<T>() const {
468 return Matcher<T>(new MonomorphicImpl<const T&>(impl_));
472 template <typename T>
473 class MonomorphicImpl : public MatcherInterface<T> {
475 explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {}
477 virtual void DescribeTo(::std::ostream* os) const { impl_.DescribeTo(os); }
479 virtual void DescribeNegationTo(::std::ostream* os) const {
480 impl_.DescribeNegationTo(os);
483 virtual bool MatchAndExplain(T x, MatchResultListener* listener) const {
484 return impl_.MatchAndExplain(x, listener);
494 // Creates a matcher from its implementation.
495 // DEPRECATED: Especially in the generic code, prefer:
496 // Matcher<T>(new MyMatcherImpl<const T&>(...));
498 // MakeMatcher may create a Matcher that accepts its argument by value, which
499 // leads to unnecessary copies & lack of support for non-copyable types.
500 template <typename T>
501 inline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) {
502 return Matcher<T>(impl);
505 // Creates a polymorphic matcher from its implementation. This is
506 // easier to use than the PolymorphicMatcher<Impl> constructor as it
507 // doesn't require you to explicitly write the template argument, e.g.
509 // MakePolymorphicMatcher(foo);
511 // PolymorphicMatcher<TypeOfFoo>(foo);
512 template <class Impl>
513 inline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) {
514 return PolymorphicMatcher<Impl>(impl);
518 // Implements a matcher that compares a given value with a
519 // pre-supplied value using one of the ==, <=, <, etc, operators. The
520 // two values being compared don't have to have the same type.
522 // The matcher defined here is polymorphic (for example, Eq(5) can be
523 // used to match an int, a short, a double, etc). Therefore we use
524 // a template type conversion operator in the implementation.
526 // The following template definition assumes that the Rhs parameter is
527 // a "bare" type (i.e. neither 'const T' nor 'T&').
528 template <typename D, typename Rhs, typename Op>
529 class ComparisonBase {
531 explicit ComparisonBase(const Rhs& rhs) : rhs_(rhs) {}
532 template <typename Lhs>
533 operator Matcher<Lhs>() const {
534 return Matcher<Lhs>(new Impl<const Lhs&>(rhs_));
538 template <typename T>
539 static const T& Unwrap(const T& v) { return v; }
540 template <typename T>
541 static const T& Unwrap(std::reference_wrapper<T> v) { return v; }
543 template <typename Lhs, typename = Rhs>
544 class Impl : public MatcherInterface<Lhs> {
546 explicit Impl(const Rhs& rhs) : rhs_(rhs) {}
547 bool MatchAndExplain(Lhs lhs,
548 MatchResultListener* /* listener */) const override {
549 return Op()(lhs, Unwrap(rhs_));
551 void DescribeTo(::std::ostream* os) const override {
552 *os << D::Desc() << " ";
553 UniversalPrint(Unwrap(rhs_), os);
555 void DescribeNegationTo(::std::ostream* os) const override {
556 *os << D::NegatedDesc() << " ";
557 UniversalPrint(Unwrap(rhs_), os);
566 template <typename Rhs>
567 class EqMatcher : public ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq> {
569 explicit EqMatcher(const Rhs& rhs)
570 : ComparisonBase<EqMatcher<Rhs>, Rhs, AnyEq>(rhs) { }
571 static const char* Desc() { return "is equal to"; }
572 static const char* NegatedDesc() { return "isn't equal to"; }
574 template <typename Rhs>
575 class NeMatcher : public ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe> {
577 explicit NeMatcher(const Rhs& rhs)
578 : ComparisonBase<NeMatcher<Rhs>, Rhs, AnyNe>(rhs) { }
579 static const char* Desc() { return "isn't equal to"; }
580 static const char* NegatedDesc() { return "is equal to"; }
582 template <typename Rhs>
583 class LtMatcher : public ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt> {
585 explicit LtMatcher(const Rhs& rhs)
586 : ComparisonBase<LtMatcher<Rhs>, Rhs, AnyLt>(rhs) { }
587 static const char* Desc() { return "is <"; }
588 static const char* NegatedDesc() { return "isn't <"; }
590 template <typename Rhs>
591 class GtMatcher : public ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt> {
593 explicit GtMatcher(const Rhs& rhs)
594 : ComparisonBase<GtMatcher<Rhs>, Rhs, AnyGt>(rhs) { }
595 static const char* Desc() { return "is >"; }
596 static const char* NegatedDesc() { return "isn't >"; }
598 template <typename Rhs>
599 class LeMatcher : public ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe> {
601 explicit LeMatcher(const Rhs& rhs)
602 : ComparisonBase<LeMatcher<Rhs>, Rhs, AnyLe>(rhs) { }
603 static const char* Desc() { return "is <="; }
604 static const char* NegatedDesc() { return "isn't <="; }
606 template <typename Rhs>
607 class GeMatcher : public ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe> {
609 explicit GeMatcher(const Rhs& rhs)
610 : ComparisonBase<GeMatcher<Rhs>, Rhs, AnyGe>(rhs) { }
611 static const char* Desc() { return "is >="; }
612 static const char* NegatedDesc() { return "isn't >="; }
615 // Implements polymorphic matchers MatchesRegex(regex) and
616 // ContainsRegex(regex), which can be used as a Matcher<T> as long as
617 // T can be converted to a string.
618 class MatchesRegexMatcher {
620 MatchesRegexMatcher(const RE* regex, bool full_match)
621 : regex_(regex), full_match_(full_match) {}
624 bool MatchAndExplain(const absl::string_view& s,
625 MatchResultListener* listener) const {
626 return MatchAndExplain(std::string(s), listener);
628 #endif // GTEST_HAS_ABSL
630 // Accepts pointer types, particularly:
635 template <typename CharType>
636 bool MatchAndExplain(CharType* s, MatchResultListener* listener) const {
637 return s != nullptr && MatchAndExplain(std::string(s), listener);
640 // Matches anything that can convert to std::string.
642 // This is a template, not just a plain function with const std::string&,
643 // because absl::string_view has some interfering non-explicit constructors.
644 template <class MatcheeStringType>
645 bool MatchAndExplain(const MatcheeStringType& s,
646 MatchResultListener* /* listener */) const {
647 const std::string& s2(s);
648 return full_match_ ? RE::FullMatch(s2, *regex_)
649 : RE::PartialMatch(s2, *regex_);
652 void DescribeTo(::std::ostream* os) const {
653 *os << (full_match_ ? "matches" : "contains") << " regular expression ";
654 UniversalPrinter<std::string>::Print(regex_->pattern(), os);
657 void DescribeNegationTo(::std::ostream* os) const {
658 *os << "doesn't " << (full_match_ ? "match" : "contain")
659 << " regular expression ";
660 UniversalPrinter<std::string>::Print(regex_->pattern(), os);
664 const std::shared_ptr<const RE> regex_;
665 const bool full_match_;
667 } // namespace internal
669 // Matches a string that fully matches regular expression 'regex'.
670 // The matcher takes ownership of 'regex'.
671 inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
672 const internal::RE* regex) {
673 return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true));
675 inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
676 const std::string& regex) {
677 return MatchesRegex(new internal::RE(regex));
680 // Matches a string that contains regular expression 'regex'.
681 // The matcher takes ownership of 'regex'.
682 inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
683 const internal::RE* regex) {
684 return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false));
686 inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
687 const std::string& regex) {
688 return ContainsRegex(new internal::RE(regex));
691 // Creates a polymorphic matcher that matches anything equal to x.
692 // Note: if the parameter of Eq() were declared as const T&, Eq("foo")
694 template <typename T>
695 inline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); }
697 // Constructs a Matcher<T> from a 'value' of type T. The constructed
698 // matcher matches any value that's equal to 'value'.
699 template <typename T>
700 Matcher<T>::Matcher(T value) { *this = Eq(value); }
702 // Creates a monomorphic matcher that matches anything with type Lhs
703 // and equal to rhs. A user may need to use this instead of Eq(...)
704 // in order to resolve an overloading ambiguity.
706 // TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x))
707 // or Matcher<T>(x), but more readable than the latter.
709 // We could define similar monomorphic matchers for other comparison
710 // operations (e.g. TypedLt, TypedGe, and etc), but decided not to do
711 // it yet as those are used much less than Eq() in practice. A user
712 // can always write Matcher<T>(Lt(5)) to be explicit about the type,
714 template <typename Lhs, typename Rhs>
715 inline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); }
717 // Creates a polymorphic matcher that matches anything >= x.
718 template <typename Rhs>
719 inline internal::GeMatcher<Rhs> Ge(Rhs x) {
720 return internal::GeMatcher<Rhs>(x);
723 // Creates a polymorphic matcher that matches anything > x.
724 template <typename Rhs>
725 inline internal::GtMatcher<Rhs> Gt(Rhs x) {
726 return internal::GtMatcher<Rhs>(x);
729 // Creates a polymorphic matcher that matches anything <= x.
730 template <typename Rhs>
731 inline internal::LeMatcher<Rhs> Le(Rhs x) {
732 return internal::LeMatcher<Rhs>(x);
735 // Creates a polymorphic matcher that matches anything < x.
736 template <typename Rhs>
737 inline internal::LtMatcher<Rhs> Lt(Rhs x) {
738 return internal::LtMatcher<Rhs>(x);
741 // Creates a polymorphic matcher that matches anything != x.
742 template <typename Rhs>
743 inline internal::NeMatcher<Rhs> Ne(Rhs x) {
744 return internal::NeMatcher<Rhs>(x);
746 } // namespace testing
748 GTEST_DISABLE_MSC_WARNINGS_POP_() // 4251 5046
750 #endif // GTEST_INCLUDE_GTEST_GTEST_MATCHERS_H_