'os' unreferenced formal parameter

[Rockem]

Hello all,

I'm just starting to use this framework
and every time I compile I get a whole lot of similar errors on
different variables

what is it ?
what I'm doing wrong ?

thanx
Eli

[Vlad Losev]

Hi Eli,

 
Can you please provide a short but complete program triggering the error messages and the full texts of the messages themselves?

thanx
Eli

Regards,
Vlad

[Rockem]

Yes
------ Code --------
#include <gmock/gmock.h>
class Interface {
public:
virtual ~Interface() {}
virtual void foo() = 0;
};

class MockInterface : public Interface {
public:
MOCK_METHOD0(foo, void());
};

TEST(MockTest, bla) {
MockInterface a;
EXPECT_CALL(a, foo());
}
------ Code ----------

----- Output -----------
recipelistcontroller_test.cpp
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : warning
C4100: 'os' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : while
compiling class template member function 'void
testing::MatcherInterface<T>::ExplainMatchResultTo(T,std::ostream *)
const'
with
[
T=const
std::basic_string<char,std::char_traits<char>,std::allocator<char>> &
]
E:\Source\mamatkon\trunk\include\gtest/internal/gtest-linked_ptr.h
(204) : see reference to class template instantiation
'testing::MatcherInterface<T>' being compiled
with
[
T=const
std::basic_string<char,std::char_traits<char>,std::allocator<char>> &
]
E:\Source\mamatkon\trunk\include\gtest/internal/gtest-linked_ptr.h
(203) : while compiling class template member function 'void
testing::internal::linked_ptr<T>::depart(void)'
with
[
T=const testing::MatcherInterface<const
std::basic_string<char,std::char_traits<char>,std::allocator<char>> &>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(142) : see
reference to class template instantiation
'testing::internal::linked_ptr<T>' being compiled
with
[
T=const testing::MatcherInterface<const
std::basic_string<char,std::char_traits<char>,std::allocator<char>> &>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(182) : see
reference to class template instantiation
'testing::internal::MatcherBase<T>' being compiled
with
[
T=const testing::internal::string &
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : warning
C4100: 'x' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : warning
C4100: 'os' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : while
compiling class template member function 'void
testing::MatcherInterface<T>::ExplainMatchResultTo(T,std::ostream *)
const'
with
[
T=testing::internal::string
]
E:\Source\mamatkon\trunk\include\gtest/internal/gtest-linked_ptr.h
(204) : see reference to class template instantiation
'testing::MatcherInterface<T>' being compiled
with
[
T=testing::internal::string
]
E:\Source\mamatkon\trunk\include\gtest/internal/gtest-linked_ptr.h
(203) : while compiling class template member function 'void
testing::internal::linked_ptr<T>::depart(void)'
with
[
T=const testing::MatcherInterface<testing::internal::string>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(142) : see
reference to class template instantiation
'testing::internal::linked_ptr<T>' being compiled
with
[
T=const testing::MatcherInterface<testing::internal::string>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(199) : see
reference to class template instantiation
'testing::internal::MatcherBase<T>' being compiled
with
[
T=testing::internal::string
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : warning
C4100: 'os' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : while
compiling class template member function 'void
testing::MatcherInterface<T>::ExplainMatchResultTo(T,std::ostream *)
const'
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gtest/internal/gtest-linked_ptr.h
(204) : see reference to class template instantiation
'testing::MatcherInterface<T>' being compiled
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gtest/internal/gtest-linked_ptr.h
(203) : while compiling class template member function 'void
testing::internal::linked_ptr<T>::depart(void)'
with
[
T=const testing::MatcherInterface<const std::tr1::tuple<> &>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(142) : see
reference to class template instantiation
'testing::internal::linked_ptr<T>' being compiled
with
[
T=const testing::MatcherInterface<const std::tr1::tuple<> &>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(162) : see
reference to class template instantiation
'testing::internal::MatcherBase<T>' being compiled
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(943) :
see reference to class template instantiation 'testing::Matcher<T>'
being compiled
with
[
T=const std::tr1::tuple<> &
]
test\recipelistcontroller_test.cpp(38) : see reference to class
template instantiation 'testing::internal::Expectation<F>' being
compiled
with
[
F=void (void)
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(92) : warning
C4100: 'x' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(393) : warning
C4100: 'value_tuple' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(418) : see
reference to function template instantiation 'bool
testing::internal::TuplePrefix<0>::Matches<MatcherTuple,ValueTuple>
(const MatcherTuple &,const ValueTuple &)' being compiled
with
[
MatcherTuple=std::tr1::tuple<>,
ValueTuple=std::tr1::tuple<>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(181) :
see reference to function template instantiation 'bool
testing::internal::TupleMatches<std::tr1::tuple<>,std::tr1::tuple<>>
(const MatcherTuple &,const ValueTuple &)' being compiled
with
[
MatcherTuple=std::tr1::tuple<>,
ValueTuple=std::tr1::tuple<>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(180) :
while compiling class template member function 'bool
testing::internal::DefaultActionSpec<F>::Matches(const
std::tr1::tuple<> &) const'
with
[
F=void (void)
]
C:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE\vector(1112) :
see reference to class template instantiation
'testing::internal::DefaultActionSpec<F>' being compiled
with
[
F=void (void)
]
C:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE\vector(1102) :
while compiling class template member function 'bool
std::vector<_Ty>::_Buy(unsigned int)'
with
[
_Ty=testing::internal::DefaultActionSpec<void (void)>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(1322) :
see reference to class template instantiation 'std::vector<_Ty>' being
compiled
with
[
_Ty=testing::internal::DefaultActionSpec<void (void)>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-generated-function-
mockers.h(64) : see reference to class template instantiation
'testing::internal::FunctionMockerBase<F>' being compiled
with
[
F=void (void)
]
test\recipelistcontroller_test.cpp(33) : see reference to class
template instantiation 'testing::internal::FunctionMocker<Function>'
being compiled
with
[
Function=void (void)
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(392) : warning
C4100: 'matcher_tuple' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(400) : warning
C4100: 'os' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(429) : see
reference to function template instantiation 'void
testing::internal::TuplePrefix<0>::DescribeMatchFailuresTo<MatcherTuple,ValueTuple>
(const MatcherTuple &,const ValueTuple &,std::ostream *)' being
compiled
with
[
MatcherTuple=std::tr1::tuple<>,
ValueTuple=std::tr1::tuple<>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(786) :
see reference to function template instantiation 'void
testing::internal::DescribeMatchFailureTupleTo<std::tr1::tuple<>,std::tr1::tuple<>>
(const MatcherTuple &,const ValueTuple &,std::ostream *)' being
compiled
with
[
MatcherTuple=std::tr1::tuple<>,
ValueTuple=std::tr1::tuple<>
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(778) :
while compiling class template member function 'void
testing::internal::Expectation<F>::DescribeMatchResultTo(const
std::tr1::tuple<> &,std::ostream *) const'
with
[
F=void (void)
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(399) : warning
C4100: 'values' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(398) : warning
C4100: 'matchers' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(497) : warning
C4100: 'x' : unreferenced formal parameter
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(497) : while
compiling class template member function 'bool
testing::internal::AnyMatcherImpl<T>::Matches(T) const'
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(1658) : see
reference to class template instantiation
'testing::internal::AnyMatcherImpl<T>' being compiled
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gmock/gmock-matchers.h(514) : see
reference to function template instantiation 'testing::Matcher<T>
testing::A<T>(void)' being compiled
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(573) :
see reference to function template instantiation
'testing::internal::AnythingMatcher::operator testing::Matcher<T>
(void) const<const std::tr1::tuple<>&>' being compiled
with
[
T=const std::tr1::tuple<> &
]
E:\Source\mamatkon\trunk\include\gmock/gmock-spec-builders.h(563) :
while compiling class template member function
'testing::internal::Expectation<F>::Expectation
(testing::internal::FunctionMockerBase<F> *,const char *,int,const
std::tr1::tuple<> &)'
with
[
F=void (void)
]
--------------------------Output------------------

On Aug 5, 9:30 pm, Vlad Losev <vl...@google.com> wrote:
> Hi Eli,
>

[Vlad Losev]

Hi Eli,

These are warnings, not errors. They are annoying but do not really indicate errors. They have been fixed in the Subversion repository, but haven't yet made it into a release. So your options are:

• Suppress those warnings by adding /wd4100 to your compiler options in gtest and your test projects. This is not optimal as will affect this warning in your code as well.
• Grab the latest revision of gMock from the source code repository.
• Wait for the gMock 1.2 release (but this may take a while).
  

HTH,
Vlad.