linker-errors

问题 I am porting a Linux application to macOS and there is a difference in the linking behavior that took some of my time to reveal itself. The project uses a two-stage CMake-based build process: one CMake tree creates a dynamic library that links to static library that is created in the second tree that is created later. The static library does not exist yet when the dynamic library is created. This works on Linux: dynamic library gets created with symbols from static library and they are

问题 A.h file class A{ public: static int* func (int &b); } A.cpp int* A::func(int &b){ //some definition here } I am calling the above function in some other file. I have included the .h file in that. When I try to compile I get the following error undefined reference to A::func(int &) 回答1: The code looks right. The first thing to check is that your build environment compiled and linked in A.cpp. 来源： https://stackoverflow.com/questions/12399453/c-linker-error-undefined-reference-to-a-static

问题 I'm having an issue with Xcode 7.2 and the linker command. Since i added the google analitycs library WITHOUT POD, in my project, everytime y close the project and reopen it, i get this error. What i have to do to workaround this problem is remove the library reference and add it again, and all goes well. What i want to know is if this is a bug or i'm doing something wrong. Thanks! EDIT: this is the location of the library 回答1: Got the problem. Your library search path should have been like

问题 This question already has answers here : Undefined reference to 'pow' even though -lm is a compile flag. [C] (2 answers) Closed 23 days ago . I noticed that when I use sin inside function the compiler don't recognize it, here is an example: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <math.h> float sinus(float a){ return sin(a);} int main(int argc, char **argv) { double a = sinus(2); printf("%f \n", sin(2)); printf("%f", a); return 0; } If I use it directly in main it

问题 I am working on unit tests with XCTest and Xcode 5. Everything was working just fine, but then a colleague made a push, and it seems to have broken it. I have done the following: BUNDLE_LOADER = $(BUILT_PRODUCTS_DIR)/app name.app/app TEST_HOST = $(BUNDLE_LOADER) and I have played around with the build paths endlessly. Here is the error I am getting, which is tied to a Linker-O error. -bundle_loader can only be used with -bundle Anyone know how to fix this? 回答1: The Mach-O Linker flag in the

问题 What are undefined reference/unresolved external symbol errors? What are common causes and how to fix/prevent them? Feel free to edit/add your own. 回答1: Compiling a C++ program takes place in several steps, as specified by 2.2 (credits to Keith Thompson for the reference): The precedence among the syntax rules of translation is specified by the following phases [see footnote] . Physical source file characters are mapped, in an implementation-defined manner, to the basic source character set

问题 I'm using GHS compiler. I get this error message when trying to build my project. Click to see: elxr Linker error [elxr] (error) read-only small data overflow: (signed) didn't fit in 16 bits while performing relocation. Update: The output of MULTI IDE after adding # and -v [elxr] (warning) section .NOINIT_RAM_UNSPECIFIED from Port_Ram.o isn't included by the section map; appending after last section. add to section map or use -append to append without warning [elxr] (warning) section .PORT

问题 I downloaded tutorial (0.3.8) from http://www.arcsynthesis.org/gltut/, then according to instruction I used premake4.exe to builld visual studio 2010 projects (premake4 vs2010) and it works fine, but when I try to run some example, I get the error message The specified file is an unrecognized or unsupported binary format can you tell me why? 回答1: I think you wrongly set the .lib project as your startUp project. Try to set your .exe project as your startUp project. In Visual studio you can set

问题 I downloaded tutorial (0.3.8) from http://www.arcsynthesis.org/gltut/, then according to instruction I used premake4.exe to builld visual studio 2010 projects (premake4 vs2010) and it works fine, but when I try to run some example, I get the error message The specified file is an unrecognized or unsupported binary format can you tell me why? 回答1: I think you wrongly set the .lib project as your startUp project. Try to set your .exe project as your startUp project. In Visual studio you can set

问题 I am facing a linker error when running my source code, I have attached a screenshot also. I am new in iOS development and so I am not able to get the error. Any help would be much appreciated. 回答1: Please check https://testflightapp.com/sdk/ios/doc/ A library was not found, that testflight needs. Include that framework (lib) and you are done. 回答2: Xcode has a bug in which it will double-escape quotes in a path. Note how the error on the screen you captured has ' \" ' and such in it. These