c++ - Unresolved external symbol error occurring only in 64-bit mode and not in 32-bit build -

-

i have vc++ code (built using vs2008), makes use of static libraries (*.lib files linked statically during compile time).

for ease of understanding let's refer exe code "aaa.exe" & refer lib files "a.lib", b.lib etc...

both aaa.exe code , static libraries code built using vs2008.

i see "aaa.exe" working fine in 32-bit version , showing below linker errors when aaa.exe built in 64-bit mode.

i have of course rebuilt static libraries in 64-bit mode , provided lib path in aaa.exe :: "project configuration properties corresponding aaa.exe -> linker -> general/input".

this linker error bothering me form long time. appreciated. 

logger.lib(loggerr.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: __thiscall cwttlogger::cwttlogger(void)" (__imp_??0cwttlogger@@qae@xz)      1>logger.lib(logger.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall cwttlogger::~cwttlogger(void)" (__imp_??1cwttlogger@@uae@xz)      1>logger.lib(logger.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: long __thiscall cwttlogger::functiona(unsigned short *,long *)" (__imp_?functiona@cwttlogger@@qaejpagpaj@z)       1>logger.lib(logger.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: long __thiscall cwttlogger::functionb(unsigned short *,long)" (__imp_?functionb@cwttlogger@@qaejpagj@z)       1>logger.lib(logger.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: long __thiscall cwttlogger::functionc(unsigned short *,unsigned long,unsigned short *,long)" (__imp_?functionc@cwttlogger@@qaejpagk0j@z)       1>logger.lib(logger.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: long __cdecl cwttlogger::functiond(unsigned long,long,...)" (__imp_?functiond@cwttlogger@@qaajkjzz)               1>logger.lib(logger.obj) : error lnk2001: unresolved external symbol "__declspec(dllimport) public: long __thiscall cwttlogger::functione(unsigned short *,long)" (__imp_?functione@cwttlogger@@qaejpagj@z)            1>c:\users\user1\documents\xyz\code\64bit\aaa.exe: fatal error lnk1120: 7 unresolved externals

also add ::

i have done 2 changes in settings make aaa.exe code 64-bit 32-bit:: 1) 64-bit build

2) 64-bit build each project in configuration properties page

ofcourse code compatible both 32-bit & 64-bit. these 2 settings changes in vc2008 complete making 32-bit aaa.exe code 64-bit build?

by looking @ stackoverflow link see there 1 more settoing in "project configuration properties -> linker-> advanced-> target machine default "not set" , if make target machine == "machinex64", different sort of error getting earlier ::

"fatal error lnk1112: module machine type 'x86' conflicts target machine type 'x64'"

i'm not having clarity on if should setting "target machine" field in linker option "not set" or "machinex64"?

if it's "yes", need figure out how fix problem.

from looks of it, you're changing half of projects x64 , leave rest win32. since don't show project's dependencies, hard guess if that's problem or not ... in case, compilation succeed you'll have switch of dependent projects (libs) x64!


Comments

Post a Comment

Popular posts from this blog

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

python - TypeError: can only concatenate tuple (not "float") to tuple -

-
i'm new python, question might easy, anyway, patience: as trying call newton-raphson method calculate implied volatility in black-scholes formula call/put option pricing, first thing is, newton method in scipy.optimize seems calculate function's zeros, in black-scholes formula, want function's value option price, not zero. (i'm new here programming, i'm not sure techniques.) should write function things like: def f(sigma, price): return bsformula(s0,k,r,t,q,sigma) - price then, while calling newton method, takes args=() 1 parameter in function, write this: value = newton(bsprice2, 0.5, args=price) but error message: file "bs.py", line 36, in bsimpvol value = newton(bsprice2, 0.5, args=float(price)) file "/usr/lib/python2.7/dist-packages/scipy/optimize/zeros.py", line 143, in newton q0 = func(*((p0,) + args)) typeerror: can concatenate tuple (not "float") tuple could tell me why that? how fix it? apprecia...
Read more

java - What is the difference between String. and String.this. ? -

-
this question has answer here: meaning of .this , .class in java 2 answers i'll straight point. im still learning bit of syntax , want know difference between code is code a: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.valueof(i))); } } please ignore fact i undeclared, not lost. code b: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.this.charat(i))); } } what don't yet understand difference in typing string.this , string. i under assumption when use dot operator on class accessing it's static methods(and/or variables if they're not hidden). i have studied little bit , have concluded when using string. accessing string static methods.. when using string.this. i'm accessing methods class buttonz extendi...
Read more