Cpp Error No Matching Function For Call To
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Error No Matching Function For Call To 'strlen'
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Error No Matching Function For Call To 'atoi'
helping each other. Join them; it only takes a minute: Sign up No matching function for call to [class] up vote 1 down vote favorite 1 So, I have some classes that I was defining, and it gave me errors for this: #include
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Error No Matching Function For Call To 'min'
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Error No Matching Function For Call To 'fopen'
the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags error no matching function for call to 'forward' Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only http://stackoverflow.com/questions/18971355/no-matching-function-for-call-to-class takes a minute: Sign up error: no matching function for call to ‘min(long unsigned int&, unsigned int&)’ up vote 8 down vote favorite 1 I'm using ubuntu 12.04 - 64 bits. I tested it with boost 1.46, 1.48, 1.52 and gcc 4.4 and 4.6 When I try to compile: while (m_burstReqBeatsRemain) { if (m_burstReqAddress % m_dramRowSize == 0) { m_admRequestQueue.push_back(adm_request()); http://stackoverflow.com/questions/14508022/error-no-matching-function-for-call-to-minlong-unsigned-int-unsigned-int adm_request &req = m_admRequestQueue.back(); req.address = m_burstReqAddress; req.command = tlm::TLM_READ_COMMAND; //call to min function req.readLen = std::min(m_burstReqBeatsRemain * sizeof(Td), m_dramRowSize); } m_burstReqBeatsRemain--; m_burstReqAddress += sizeof(Td); m_ocpTxnQueue.push_back(m_ocpReq); } I get this error: no matching function for call to ‘min(long unsigned int&, unsigned int&) from /usr/include/c++/4.6/bits/stl_algobase.h* Note: with ubuntu 12.04 32 bits works fine Any idea how I can fix this? c++ gcc ubuntu boost share|improve this question edited Jan 24 '13 at 18:36 Jesus Ramos 18.1k53971 asked Jan 24 '13 at 18:17 Will 461514 3 That's because you are trying to take "min" of two different types, and "min" expects both values to be the same type. –Mats Petersson Jan 24 '13 at 18:19 add a comment| 1 Answer 1 active oldest votes up vote 23 down vote accepted std::min is a function template on T which is the type of both parameters of the function. But you seem to pass function arguments of different type, and rely on template argument deduction from function arguments, which is not possible. So the fix is : Either don't rely on template argu
»reddit.comcpp_questionscommentsWant to join? Log in or sign up in seconds.|Englishlimit my search to /r/cpp_questionsuse the following https://www.reddit.com/r/cpp_questions/comments/3r165z/error_no_matching_function_for_call_to_classclass/ search parameters to narrow http://www-h.eng.cam.ac.uk/help/tpl/languages/C++/constructors.html your results:subreddit:subredditfind submissions in "subreddit"author:usernamefind submissions by "username"site:example.comfind submissions from "example.com"url:textsearch for "text" in urlselftext:textsearch error no for "text" in self post contentsself:yes (or self:no)include (or exclude) self postsnsfw:yes (or nsfw:no)include (or exclude) results marked error no matching as NSFWe.g. subreddit:aww site:imgur.com dogsee the search faq for details.advanced search: by author, subreddit...this post was submitted on 01 Nov 20152 points (100% upvoted)shortlink: remember mereset passwordloginSubmit a new text postcpp_questionssubscribeunsubscribe6,160 readers~9 users here now This is a subreddit for c++ questions with answers. For general discussion and news about c++ see r/cpp. READ BEFORE POSTING Before you pos
are special member functions used when an object is "constructed" (created). They have the same name as the class. The following code creates a class called A, then an object of that type. class A { public: int i; }; int main() { A a; } There's no explicit function called A - when a is created, a constructor is used that the compiler has created. This time we'll create a constructor that, given an integer, sets the member variable i to that value. class A { public: int i; A(int x) { i=x;}; }; int main() { A a; } Though we don't use that constructor, the code doesn't compile, because as soon as you start writing your own constructors, none of the default constructors are created. The error message will be something like // error: no matching function for call to A::A() // note: candidates are: A::A(int) // note: A::A(const A&) (more about that final line later) In the following, a default value is defined for the constructor argument (i.e. if no value is supplied, 7 is used). Now compilation works. class A { public: int i; A(int x=7) { i=x;}; }; int main() { A a; } In the next example an argument is given when an object of type A is created, so that's ok too. class A { public: int i; A(int x) { i=x;}; }; int main() { A a(1); } The next example has an explicit constructor for when no parameter is given, and another constructor for when a single integer parameter is given. The programmer's trying to create a with one parameter, and b using no parameters. class A { public: int i; A() {}; A(int x) { i=x;}; }; int main() { A a(1); A b(); } The code compiles, but doesn't do what the programmer intended. Adding b.i=0; exposes the problem - there's a compilation error. To run the constructor with no parameters, A b; is needed. A b(); is a prototype for a function b that returns an object of type A. Copy constructor There's another type of constructor - it's called a copy constructor. It's used when an object is created by a copy being taken of an existing variable. class A { public: int i; A(const A&){}; // Copy constructor }; int main() { A a; A b=a; } But the code doesn't compile - copying works, but a itself isn't created. Again, because we're created a constructor, no default constructors are created so we get errors like the following //defaultconstructors4.cc:12: error: no matching function for call to A::A() //defaultconstructors4.cc:6: note: candidates are: A::A(const A&) If we provide our own constructors both for creating and copying, all's ok. class A { public: int i; A(){}; A(const A&){}; }; int main() { A a; A b=a; } Member initializer list Constructor functions are where you often in