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Undefined Reference To Static Const Member


I was just wondering how the linker knows it shouldn't strip my symbol... Linked 2 Undefined reference to static const member 3 trouble with static const integral member declaration 9 static const in c++ class: undefined reference 6 Best code for compiling static const This means that in practise there is no variable to make a reference point to. I was wondering if this was intentional, or am I expecting too much from gcc to be able to handle this case? http://compsyscon.com/undefined-reference/c-undefined-reference-to-static-class-member.html

James Potter and the Cloak of Invisibility - Why didn't he use it to hide the family from Voldemort? I don't remember how that interacts with inline initialization of const static integral members. To remove the limits, please log into your User area and consider the options available to resolve the case. Save output of Con statement to different folder What is this aircraft with elaborate folding wings? http://stackoverflow.com/questions/18614364/link-errors-on-static-const-char

Undefined Reference To Static Const Member

Is using "you" to refer to anyone, not the person you're talking to, a known, specific grammar form? But, ignoring whether the question said it was a member, your answer does. Also, there is rarely a reason (I can think of none) to have a function take a parameter of the type const int & - just use an int here. –Björn

AFAIK GCC can't arrange that unless the object is defined in one (and only one) TU. What's the appropriate range for the angle of a slide? How to set up love interests for player characters How much of my income should I put towards paying off student loans vs saving for a house? C++ Extern Const Is there any way to avoid it? –Truman Jun 21 '15 at 16:34 I'm guessing that you are not compiling the A.cpp file or you are not linking with

And you probably want to enforce this by making ACH_DEBUG const (rather than just its contents). C++ Static Constexpr Undefined Reference but you may possibly google it successfully or use the SO search facility, and anyway, a bit of experimentation can be enlightening. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed essentially it means that you can more freely declare and define constants in header files.

Why is that so ? Undefined Reference To Static Variable C++ Fixed using a static cast. –greggo Nov 20 '15 at 20:57 | show 1 more comment 5 Answers 5 active oldest votes up vote 44 down vote accepted It's intentional, 9.4.2/4 So you need to counteract that and explicitly say extern in your definition too. –Nikos C. DDH Assumption Not Holding What to do when expecting a negative recommendation letter?

C++ Static Constexpr Undefined Reference

Removing the inner const is invalid in C++11 and deprecated in C++03. –Konrad Rudolph Sep 9 '13 at 22:05 add a comment| up vote 2 down vote Your cpp file must http://stackoverflow.com/questions/14977058/extern-const-char-const-some-constant-giving-me-linker-errors Define someString. Undefined Reference To Static Const Member Advisor drops MSci student suddenly in final semester The Loose Astronaut more hot questions question feed lang-cpp about us tour help blog chat data legal privacy policy work here advertising info Undefined Reference To Const more hot questions lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Other

All Aboard the Kolmogorov Complexity Train Is it possible that the last piece the ant has eaten is the central one? http://compsyscon.com/undefined-reference/undefined-reference-to-function-c.html I cannot reproduce the problem with gcc 4.7.3. –juanchopanza Jun 6 '13 at 8:55 1 Compiles just fine: ideone.com/2LlrHt –djf Jun 6 '13 at 8:56 1 "I modified this So if you put in the archive file, the object file containing the definition of the const and another object file calling Bar::func(), you will see the symbol once with the Any ideas what might be wrong with my code? C++ Static Const Linker Error

std::min takes it's parameters by reference, so they are odr-used. Or could you remove them to create a better Minimal, Complete, and Verifiable example? but then give a code snippet that cannot do what you said it does. –Ben Voigt Sep 4 '13 at 15:45 add a comment| Your Answer draft saved draft discarded navigate here share|improve this answer answered Apr 1 '11 at 1:14 Ben Voigt 205k21242459 1 see stackoverflow.com/questions/1312241/… –J T Apr 1 '11 at 1:17 1 There's no special rule for the

Customizing the Personalization Rules What's the verb for "to drink small amounts of drink"? Undefined Reference To Function C++ In practice, most compilers are defective in this regard, and will only generate an error for certain uses, not for others, if the definition is missing. (Which uses are never specified, Why doesn't my (battery-powered) light work in the cold?

asked 3 years ago viewed 4025 times active 3 years ago Blog How Do Software Developers in New York, San Francisco, London and Bangalore… Linked 2 extern const char* const pointer

An object or non-overloaded function is used if its name appears in a potentially-evaluated expression. float f = FNUMBER + 3.3; [...] } private: A_TemplateClass aTemplateClass; }; #endif .cpp file #include "A.h" const float A::FNUMBER = 1.3f; UnitTest.cpp file #include "TemplateClass.h" #include "A.h" int main(){ TemplateClass

Provide a definition in the .cpp file, outside the class: class A { public: static const int MY_CONST = 5; // declaration }; const int A::MY_CONST; // definition (no value needed) If you are denied entry to a country at the airport, can you chose to fly to another destination? Advisor drops MSci student suddenly in final semester Was Harry's concern about Fleur's sister Gabrielle misplaced? http://compsyscon.com/undefined-reference/undefined-reference-to-winmain-c.html I access these static const variables in some methods.