I'va installed cppunit library on my kubuntu 11.10, using this command:
sudo apt-get install libcppunit-1.12-1 libcppunit-dev libcppunit-doc
sudo apt-get install libcppunit-subunit-dev libcppunit-subunit0
before this i run the: apt-cache search cppunit command, as a result:
libcppunit-1.12-1 - Unit Testing Library for C++
libcppunit-dev - Unit Testing Library for C++
libcppunit-doc - Unit Testing Library for C++
libcppunit-subunit-dev - SubunitTestProgressListener for CPPUnit - Development headers
libcppunit-subunit0 - SubunitTestProgressListener for CPPUnit - C++ shared library
libcunit1 - Unit Testing Library for C
libcunit1-dev - Unit Testing Library for C -- development files
libcunit1-doc - Unit Testing Library for C -- documentation
libcunit1-ncurses - Unit Testing Library for C (ncurses)
libcunit1-ncurses-dev - Unit Testing Library for C (ncurses) -- development files
libqxcppunit-dev - A Qt4-based GUI for running tests with CppUnit - development files
libqxcppunitd1 - A Qt4-based GUI for running tests with CppUnit
I've got a simple source file for studying unit-testing:
#include <iostream>
#include <cppunit/TestCase.h>
#include <cppunit/extensions/HelperMacros.h>
class MyDate
{
private:
struct Duration
{
int year;
int month;
int day;
Duration( int y, int m, int d ) :
year( y ), month( m ), day( d )
{}
} mdata;
public:
MyDate() : mdata( 2011, 11, 15 )
{}
MyDate( int year, int month, int day ) : mdata( year, month, day )
{}
int getYear() const
{ return mdata.year; }
int getMonth() const
{ return mdata.month; }
int getDay() const
{ return mdata.day; }
friend bool operator < ( MyDate const& lhs, MyDate const& rhs )
{
if ( lhs.mdata.year > rhs.mdata.year )
return false;
else if ( lhs.mdata.year < rhs.mdata.year )
return true;
else if ( lhs.mdata.year == rhs.mdata.year )
{
if ( lhs.mdata.month > rhs.mdata.month )
return false;
else if ( lhs.mdata.month < rhs.mdata.month )
return true;
else if ( lhs.mdata.month == rhs.mdata.month )
{
if ( lhs.mdata.day < rhs.mdata.day )
return true;
else
return false;
}
}
return false;
}
};
class MyDateTest : public CppUnit::TestCase
{
MyDate mybday;
MyDate today;
public:
MyDateTest() : mybday( 1951, 10, 1 ) {}
void run()
{
testOps();
}
void testOps()
{
CPPUNIT_ASSERT( mybday < today );
}
};
int main()
{
MyDateTest test;
test.run();
return 0;
}
but when i compile my cpp file, using g++, i have the following errors:
$ g++ -Wall -pedantic date_module_test.cpp -o date_module_test
/tmp/ccLgvOFj.o: In function `MyDateTest::MyDateTest()':
date_module_test.cpp:(.text._ZN10MyDateTestC2Ev[_ZN10MyDateTestC5Ev]+0xd): undefined reference to `CppUnit::TestCase::TestCase()'
/tmp/ccLgvOFj.o: In function `MyDateTest::~MyDateTest()':
date_module_test.cpp:(.text._ZN10MyDateTestD2Ev[_ZN10MyDateTestD5Ev]+0x20): undefined reference to `CppUnit::TestCase::~TestCase()'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x10): undefined reference to `CppUnit::TestCase::run(CppUnit::TestResult*)'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x14): undefined reference to `CppUnit::TestLeaf::countTestCases() const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x18): undefined reference to `CppUnit::TestLeaf::getChildTestCount() const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x1c): undefined reference to `CppUnit::Test::getChildTestAt(int) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x20): undefined reference to `CppUnit::TestCase::getName() const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x24): undefined reference to `CppUnit::Test::findTestPath(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, CppUnit::TestPath&) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x28): undefined reference to `CppUnit::Test::findTestPath(CppUnit::Test const*, CppUnit::TestPath&) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x2c): undefined reference to `CppUnit::Test::findTest(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x30): undefined reference to `CppUnit::Test::resolveTestPath(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x34): undefined reference to `CppUnit::Test::checkIsValidIndex(int) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x38): undefined reference to `CppUnit::TestLeaf::doGetChildTestAt(int) const'
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x3c): undefined reference to `CppUnit::TestCase::runTest()'
/tmp/ccLgvOFj.o:(.rodata._ZTI10MyDateTest[typeinfo for MyDateTest]+0x8): undefined reference to `typeinfo for CppUnit::TestCase'
collect2: ld returned 1 exit status
What's the problem ?
You have to instruct g++ to link against the correct CPPUnit static library.
Related
So I have made a little bit of C++ templates before: some quite basic examples of the curiously recurring template pattern for classes of mathematical numbers. This time I tried using the same pattern to create a list or "network" for objects of a class which they could add themselves to and look around for other objects. I thought I could use a static std::list to do this. So my attempt goes like this:
template<class C> class HasNetwork{
public:
HasNetwork(){}
static list<C*> m;
};
template<class C> list<C*> HasNetwork<C>::m = list<C*>();
class IHaveNetwork: public HasNetwork<IHaveNetwork>{
public:
IHaveNetwork(){ m.push_back(this); }
};
int main(){
IHaveNetwork lHF, lHF2;
//for(list<IHaveNetwork*>::iterator it = lHF.m->begin(); ; it++);
return 0;
}
It seems to compile, but I get nasty link errors ( even with the for loop iterator commented out ). Maybe I need to do some cast or maybe "this" is not defined until after the constructor finishes?
Here is the link error:
/tmp/templatest-912860.o: In function `__clang_call_terminate':
templatest.cpp:
(.text.__clang_call_terminate[__clang_call_terminate]+0x9): undefined reference to `__cxa_begin_catch'
templatest.cpp:(.text.__clang_call_terminate[__clang_call_terminate]+0x12): undefined reference to `std::terminate()'
/tmp/templatest-912860.o: In function `__gnu_cxx::new_allocator<std::_List_node<IHaveNetwork*>
>::deallocate(std::_List_node<IHaveNetwork*>*, unsigned long)':
templatest.cpp:
(.text._ZN9__gnu_cxx13new_allocatorISt10_List_nodeIP12IHaveNetworkEE10deallocateEPS4_m[_ZN9__gnu_cxx13new_allocatorISt10_List_nodeIP12IHaveNetworkEE10deallocateEPS4_m]+0x1c): undefined reference to `operator delete(void*)'
/tmp/templatest-912860.o: In function `std::list<IHaveNetwork*, std::allocator<IHaveNetwork*>
>::_M_insert(std::_List_iterator<IHaveNetwork*>, IHaveNetwork* const&)':
templatest.cpp:
(.text._ZNSt4listIP12IHaveNetworkSaIS1_EE9_M_insertESt14_List_iteratorIS1_ERKS1_[_ZNSt4listIP12IHaveNetworkSaIS1_EE9_M_insertESt14_List_iteratorIS1_ERKS1_]+0x31): undefined reference to
`std::__detail::_List_node_base::_M_hook(std::__detail::_List_node_base*)'
/tmp/templatest-912860.o: In function `std::list >::_M_create_node(IHaveNetwork* const&)':
templatest.cpp:
(.text._ZNSt4listIP12IHaveNetworkSaIS1_EE14_M_create_nodeERKS1_[_ZNSt4listIP12IHaveNetworkSaIS1_EE14_M_create_nodeERKS1_]+0xa0): undefined reference to `__cxa_begin_catch'
templatest.cpp:(.text._ZNSt4listIP12IHaveNetworkSaIS1_EE14_M_create_nodeERKS1_[_ZNSt4listIP12IHaveNetworkSaIS1_EE14_M_create_nodeERKS1_]+0xbb): undefined reference to `__cxa_rethrow'
templatest.cpp:
(.text._ZNSt4listIP12IHaveNetworkSaIS1_EE14_M_create_nodeERKS1_[_ZNSt4listIP12IHaveNetworkSaIS1_EE14_M_create_nodeERKS1_]+0xce): undefined reference to `__cxa_end_catch'
/tmp/templatest-912860.o: In function `__gnu_cxx::new_allocator<std::_List_node<IHaveNetwork*> >::allocate(unsigned long, void const*)':
templatest.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt10_List_nodeIP12IHaveNetworkEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt10_List_nodeIP12IHaveNetworkEE8allocateEmPKv]+0x33): undefined reference to `std::__throw_bad_alloc()'
templatest.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt10_List_nodeIP12IHaveNetworkEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt10_List_nodeIP12IHaveNetworkEE8allocateEmPKv]+0x40): undefined reference to `operator new(unsigned long)'
/tmp/templatest-912860.o:(.eh_frame+0x13): undefined reference to `__gxx_personality_v0'
I cannot reproduce.
Here is a slightly modified version of you code that compiles links and runs without even a warning (I only had to fix some indirection level errors):
#include <iostream>
#include <list>
#include <string>
template<class C> class HasNetwork{
public:
HasNetwork(){}
static std::list<C*> m;
};
template<class C> std::list<C*> HasNetwork<C>::m = std::list<C*>();
class IHaveNetwork: public HasNetwork<IHaveNetwork>{
std::string name;
public:
IHaveNetwork(const std::string &name): name(name) { m.push_back(this); }
std::string getName() const {
return name;
}
};
int main(){
IHaveNetwork lHF("foo"), lHF2("bar");
for(std::list<IHaveNetwork*>::iterator it = lHF.m.begin(); it != lHF.m.end(); it++) {
std::cout << (*it)->getName() << std::endl;
}
return 0;
}
I am trying to follow the penguin programmer text-based rpg guide (http://www.penguinprogrammer.co.uk/rpg-tutorial/introduction/). I am working on the item class and I am having some undefined reference errors with JsonBox functions.
#include "Item.hpp"
#include "Entity.hpp"
#include "JsonBox/include/JsonBox.h"
//#include "EntityManager.hpp"
Item::
Item(std::string _id, std::string _name, std::string _description)
: Entity(_id) {
this->SetName(_name);
this->SetDescription(_description);
}
Item::
Item(std::string _id, JsonBox::Value& _v, EntityManager* _mgr)
: Entity (_id) {
this->Load(_v, _mgr);
}
void
Item::
Load(JsonBox::Value& _v, EntityManager* _mgr) {
JsonBox::Object o = _v.getObject();
this->SetName(o["name"].getString());
this->SetDescription(o["description"].getString());
return;
}
Then I am compiling this main.
//#include "EntityManager.cpp"
#include "Item.cpp"
#include "JsonBox/include/JsonBox.h"
int main() {
return 0;
}
And getting this error
/tmp/cc1sZXwe.o: In function `Item::Load(JsonBox::Value&, EntityManager*)':
main.cpp:(.text+0x286): undefined reference to `JsonBox::Value::getObject() const'
main.cpp:(.text+0x2d4): undefined reference to `JsonBox::Value::getString() const'
main.cpp:(.text+0x35c): undefined reference to `JsonBox::Value::getString() const'
/tmp/cc1sZXwe.o: In function `std::pair<std::string const, JsonBox::Value>::~pair()':
main.cpp: (.text._ZNSt4pairIKSsN7JsonBox5ValueEED2Ev[_ZNSt4pairIKSsN7JsonBox5ValueEED5Ev]+ 0x18): undefined reference to `JsonBox::Value::~Value()'
/tmp/cc1sZXwe.o: In function `std::pair<std::string const, JsonBox::Value>::pair(std::pair<std::string const, JsonBox::Value> const&)':
main.cpp: (.text._ZNSt4pairIKSsN7JsonBox5ValueEEC2ERKS3_[_ZNSt4pairIKSsN7JsonBox5ValueEEC5 ERKS3_]+0x3b): undefined reference to `JsonBox::Value::Value(JsonBox::Value const&)'
/tmp/cc1sZXwe.o: In function `std::pair<std::string const, JsonBox::Value>::pair<std::string&&, 0ul>(std::tuple<std::string&&>&, std::tuple<>&, std::_Index_tuple<0ul>, std::_Index_tuple<>)':
main.cpp: (.text._ZNSt4pairIKSsN7JsonBox5ValueEEC2IIOSsEILm0EEIEIEEERSt5tupleIIDpT_EERS6_I IDpT1_EESt12_Index_tupleIIXspT0_EEESF_IIXspT2_EEE[_ZNSt4pairIKSsN7JsonBox5ValueE EC5IIOSsEILm0EEIEIEEERSt5tupleIIDpT_EERS6_IIDpT1_EESt12_Index_tupleIIXspT0_EEESF _IIXspT2_EEE]+0x47): undefined reference to `JsonBox::Value::Value()'
Inside your main you include Item.cpp source file, changing your main to this might help you:
//#include "EntityManager.cpp"
#include "Item.hpp"
#include "JsonBox/include/JsonBox.h"
int main() {
return 0;
}
Including source files is usually a bad practice, and can cause many problems, you can read more about Including .cpp files
I'm writing a small recursive algorithm. Here is the code:
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
vector<int> coins;
int checkchange(int left) {
vector<int> choices (coins.size());
if (left == 0)
return 0;
else {
int min;
for (int i=0;i<coins.size();i++) {
choices.at(i) = (1 + checkchange(left - coins.at(i)));
}
return min_element(choices.front(),choices.back());
}
}
int main() {
int N;
cin >> N;
for (int i=0;i<N;i++) {
int c,m,temp,change;
cin >> c >> m;
for (int j=0;j<c;j++) {
cin >> temp;
coins.push_back(temp);
}
for (int j=0;j<m;j++) {
cin >> temp;
change = checkchange(temp);
cout << change;
}
}
return 0;
}
I get the following error:
In file included from
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/algorithm:62,
from burningcoins.cpp:3: /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/stl_algo.h:
In function ‘_FIter std::min_element(_FIter, _FIter) [with _FIter =
int]’: burningcoins.cpp:19: instantiated from here
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/stl_algo.h:5998:
error: invalid type argument of ‘unary *’
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/stl_algo.h:5998:
error: invalid type argument of ‘unary *’
I've tried compiling with both g++ and gcc, both give me the same error. What am I doing wrong?
Edit:
New Code:
int checkchange(int left) {
vector<int> choices (coins.size());
if (left == 0)
return 0;
else {
for (int i=0;i<coins.size();i++) {
choices[i] = (1 + checkchange(left - coins.at(i)));
}
return *min_element(choices.begin(), choices.end());
}
}
New error message:
/tmp/ccV3VLsK.o: In function main': <br/>
burningcoins.cpp:(.text+0x16a): undefined reference tostd::cin'
burningcoins.cpp:(.text+0x16f): undefined reference to std::basic_istream<char, std::char_traits<char> >::operator>>(int&)' <br/>
burningcoins.cpp:(.text+0x187): undefined reference tostd::cin'
burningcoins.cpp:(.text+0x18c): undefined reference to std::basic_istream<char, std::char_traits<char> >::operator>>(int&)' <br/>
burningcoins.cpp:(.text+0x19b): undefined reference tostd::basic_istream >::operator>>(int&)'
burningcoins.cpp:(.text+0x1b0): undefined reference to std::cin' <br/>
burningcoins.cpp:(.text+0x1b5): undefined reference tostd::basic_istream >::operator>>(int&)'
burningcoins.cpp:(.text+0x1ec): undefined reference to std::cin' <br/>
burningcoins.cpp:(.text+0x1f1): undefined reference tostd::basic_istream >::operator>>(int&)'
burningcoins.cpp:(.text+0x208): undefined reference to std::cout' <br/>
burningcoins.cpp:(.text+0x20d): undefined reference tostd::basic_ostream >::operator<<(int)'
/tmp/ccV3VLsK.o: In function __static_initialization_and_destruction_0(int, int)': <br/>
burningcoins.cpp:(.text+0x261): undefined reference tostd::ios_base::Init::Init()'
burningcoins.cpp:(.text+0x266): undefined reference to std::ios_base::Init::~Init()' <br/>
/tmp/ccV3VLsK.o: In functionstd::vector >::_M_range_check(unsigned long) const':
burningcoins.cpp:(.text._ZNKSt6vectorIiSaIiEE14_M_range_checkEm[std::vector >::_M_range_check(unsigned long) const]+0x2d): undefined reference to std::__throw_out_of_range(char const*)' <br/>
/tmp/ccV3VLsK.o: In functionstd::vector >::_M_insert_aux(__gnu_cxx::__normal_iterator > >, int const&)':
burningcoins.cpp:(.text._ZNSt6vectorIiSaIiEE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPiS1_EERKi[std::vector >::_M_insert_aux(__gnu_cxx::__normal_iterator > >, int const&)]+0x259): undefined reference to __cxa_begin_catch' <br/>
burningcoins.cpp:(.text._ZNSt6vectorIiSaIiEE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPiS1_EERKi[std::vector<int, std::allocator<int> >::_M_insert_aux(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, int const&)]+0x2be): undefined reference to__cxa_rethrow'
burningcoins.cpp:(.text._ZNSt6vectorIiSaIiEE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPiS1_EERKi[std::vector >::_M_insert_aux(__gnu_cxx::__normal_iterator > >, int const&)]+0x2c8): undefined reference to __cxa_end_catch' <br/>
/tmp/ccV3VLsK.o: In functionstd::vector >::_M_check_len(unsigned long, char const*) const':
burningcoins.cpp:(.text._ZNKSt6vectorIiSaIiEE12_M_check_lenEmPKc[std::vector >::_M_check_len(unsigned long, char const*) const]+0x4c): undefined reference to std::__throw_length_error(char const*)' <br/>
/tmp/ccV3VLsK.o: In function__gnu_cxx::new_allocator::deallocate(int*, unsigned long)':
burningcoins.cpp:(.text._ZN9__gnu_cxx13new_allocatorIiE10deallocateEPim[__gnu_cxx::new_allocator::deallocate(int*, unsigned long)]+0x1c): undefined reference to operator delete(void*)' <br/>
/tmp/ccV3VLsK.o: In function__gnu_cxx::new_allocator::allocate(unsigned long, void const*)':
burningcoins.cpp:(.text._ZN9__gnu_cxx13new_allocatorIiE8allocateEmPKv[__gnu_cxx::new_allocator::allocate(unsigned long, void const*)]+0x35): undefined reference to std::__throw_bad_alloc()' <br/>
burningcoins.cpp:(.text._ZN9__gnu_cxx13new_allocatorIiE8allocateEmPKv[__gnu_cxx::new_allocator<int>::allocate(unsigned long, void const*)]+0x45): undefined reference tooperator new(unsigned long)'
/tmp/ccV3VLsK.o:(.eh_frame+0x12): undefined reference to __gxx_personality_v0' <br/>
/tmp/ccV3VLsK.o:(.eh_frame+0x4f): undefined reference to__gxx_personality_v0'
collect2: ld returned 1 exit status
std::min_element takes a range. front and back return references to actual values. You should be using the begin and end methods to return an iterator to the corresponding positions in the vector:
min_element(choices.begin(), choices.end());
// ^^^^^ ^^^
If you find this tedious, you can create a function which wraps around the standard min_element:
template <class Container>
auto min_element(Container c) -> decltype(std::min_element(c.begin(), c.end()))
{
return std::min_element(c.begin(), c.end());
}
And use it as:
min_element(choices);
hi every one I have this class with those headers
class WuManber
{
public:
WuManber( void );
virtual ~WuManber( void );
void Initialize( const vector<const char *> &patterns,
bool bCaseSensitive = false, bool bIncludeSpecialCharacters = false, bool bIncludeExtendedAscii = false );
when I try try to create an instance of WuManber and invoke Initialize I get the following error:
/tmp/ccx19Os5.o: In function main': Test.cpp:(.text+0x8d): undefined
reference toWuManber::WuManber()' Test.cpp:(.text+0xbc): undefined
reference to WuManber::Initialize(std::vector<char const*,
std::allocator<char const*> > const&, bool, bool, bool)'
Test.cpp:(.text+0xc8): undefined reference toWuManber::~WuManber()'
Test.cpp:(.text+0x115): undefined reference to `WuManber::~WuManber()'
collect2: ld returned 1 exit status
int main(int argc, char* argv[])
{
Parser CustomParserEx;
CustomParserEx.open("/home/abdullah/Project IDS/rules");
WuManber WmAlgorithm;
WmAlgorithm.Initialize(CustomParserEx.patterns,true,true,true);
}
so any hints of what I am doing wrong
You didn't implement the three methods of WuManber, or you didn't include the implementations where the linker can find them.
i try to use the gcc instrument functions with g++ compiler of MinGW, but i
always got linker issues. Is it possible to use the instrument functions with
MinGW/MSYS?
The linker failure output:
$ g++ instrumentFunctions.cpp -o iftest -finstrument-functions >> iflog.txt
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x4e): undefined reference to `__cyg_prof
ile_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x158): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x179): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x18c): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x1a7): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x1bf): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x1db): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x1f3): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x22f): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x27a): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x29b): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x2e4): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x2ff): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x326): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x341): undefined reference to `__cyg_pro
file_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text+0x368): undefined reference to `__cyg_pro
file_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text$printf[_printf]+0x16): undefined referenc
e to `__cyg_profile_func_enter'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text$printf[_printf]+0x43): undefined referenc
e to `__cyg_profile_func_exit'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text$_ZSt3minIjERKT_S2_S2_[unsigned int const&
std::min<unsigned int>(unsigned int const&, unsigned int const&)]+0x15): undefined reference to `__cyg_profile_func_ent
er'
C:/Users/HELLHO~1/AppData/Local/Temp/ccUwxrxt.o:instrumentFunctions.cpp:(.text$_ZSt3minIjERKT_S2_S2_[unsigned int const&
std::min<unsigned int>(unsigned int const&, unsigned int const&)]+0x42): undefined reference to `__cyg_profile_func_exi
t'
collect2: ld returned 1 exit status
g++ command i use:
g++ iftest.cpp -o iftest -finstruction-functions
Listing of my testsource:
#include <stdio.h>
void __cyg_profile_func_enter( void *, void * ) __attribute__ ((no_instrument_function));
void __cyg_profile_func_enter(void *func, void *callsite)
{
printf("%p\n", (int)func);
}
void func_c( void )
{
return;
}
void func_b( void )
{
func_c();
return;
}
void func_a( void )
{
func_b();
return;
}
int main()
{
func_a();
func_c();
}
You need to give the __cyg* functions "C" linkage. A function defined in C++ normally gets a mangled name which can't be used from libraries not written in C++. You can ask the compiler to give a function the name C would give it by using an `extern "C"{} block. The following should compile fine.
#include <stdio.h>
extern "C" {
void __cyg_profile_func_enter( void *, void * ) __attribute__ ((no_instrument_function));
void __cyg_profile_func_enter(void *func, void *callsite)
{
printf("enter %p\n", func);
}
void __cyg_profile_func_exit( void *, void * ) __attribute__ ((no_instrument_function));
void __cyg_profile_func_exit(void *func, void *callsite)
{
printf("exit %p\n", func);
}
}
void func_c( void )
{
return;
}
void func_b( void )
{
func_c();
return;
}
void func_a( void )
{
func_b();
return;
}
int main()
{
func_a();
func_c();
}