linker

问题 In our iPhone XCode 3.2.1 project, we're linking in 2 external static C++ libraries, libBlue.a and libGreen.a. libBlue.a globally overrides the " new " operator for it's own memory management. However, when we build our project, libGreen.a winds up using libBlue's new operator, which results in a crash (presumably because libBlue.a is making assumptions about the kinds of structures being allocated). Both libBlue.a and libGreen.a are provided by 3rd parties, so we can't change any of their

问题 I keep getting this error message every time I try to compile, and I cannot find out what the problem is. any help would be greatly appreciated: C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::List()' C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::add(int)' collect2: ld returned 1 exit status code: //List.h #ifndef LIST_H #define LIST_H #include <exception> //brief Definition of linked list

问题 I keep getting this error message every time I try to compile, and I cannot find out what the problem is. any help would be greatly appreciated: C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::List()' C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::add(int)' collect2: ld returned 1 exit status code: //List.h #ifndef LIST_H #define LIST_H #include <exception> //brief Definition of linked list

问题 I keep getting this error message every time I try to compile, and I cannot find out what the problem is. any help would be greatly appreciated: C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::List()' C:\DOCUME~1\Patrick\LOCALS~1\Temp/ccL92mj9.o:main.cpp:(.txt+0x184): undefined reference to 'List::add(int)' collect2: ld returned 1 exit status code: //List.h #ifndef LIST_H #define LIST_H #include <exception> //brief Definition of linked list

问题 I have a simple hello world c++ program which links sqlite3.dll (64 bit version). I have added sqlite3.h and sqlite3.dll correctly in the respective paths. The projects compiles for 64 bit architecture. The compilation and linking goes fine. The problem arises when I try to run the exe. I have seen many questions here that suggest to use dependency walker. I am putting the screenshot here: I don't understands why it fails since the sqlite3.dll is in the exe's folder. And if I understand well

问题 I have a simple hello world c++ program which links sqlite3.dll (64 bit version). I have added sqlite3.h and sqlite3.dll correctly in the respective paths. The projects compiles for 64 bit architecture. The compilation and linking goes fine. The problem arises when I try to run the exe. I have seen many questions here that suggest to use dependency walker. I am putting the screenshot here: I don't understands why it fails since the sqlite3.dll is in the exe's folder. And if I understand well

问题 I have a simple hello world c++ program which links sqlite3.dll (64 bit version). I have added sqlite3.h and sqlite3.dll correctly in the respective paths. The projects compiles for 64 bit architecture. The compilation and linking goes fine. The problem arises when I try to run the exe. I have seen many questions here that suggest to use dependency walker. I am putting the screenshot here: I don't understands why it fails since the sqlite3.dll is in the exe's folder. And if I understand well

问题 (Update: As per Hans' suggestion, here's a suggestion to improve link.exe's behaviour, and you can vote for it if you have an account over there.) Okay, I'm a fool. In January I installed Oracle on my computer, Win7 Pro 64 Bit. I installed the 64 Bit version. Yesterday, using MSVC Express, I tried to compile and link a small test programm oci1.c against oci.h and oci.lib . cl /nologo /c /I%ORACLE_HOME%\oci\include oci1.c link /nologo oci1.obj /LIBPATH:%ORACLE_HOME%\oci\lib\msvc oci.lib My

问题 I added a class IcecastServer to my QT-project, added the header-file to the pro file and added some code. Everytime I compile it the following errors occur: release/icecastserver.o:icecastserver.cpp:(.text+0x39): undefined reference to _imp___ZN10QTcpServerC1EP7QObject' release/icecastserver.o:icecastserver.cpp:(.text+0x50): undefined reference to imp ZN12QHostAddressC1ENS_14SpecialAddressE' release/icecastserver.o:icecastserver.cpp:(.text+0x68): undefined reference to _imp__

问题 From this question: Why do you have to link the math library in C? I know that C math library (libm) is separated from C standard library (libc), and is not linked in by default. But when I compiled the code below using gcc filename.c without -lm on mac osx 10.11.1 : #include <math.h> #include <stdio.h> int main (void) { double x = sqrt (2.0); printf ("The square root of 2.0 is %f\n", x); return 0; } There's no link error and the output executable file works correctly. Then I tried otool -L