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POc++ linker error: undefined references only on optimized build
 

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  1. POc++ linker error: undefined references only on optimized build
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    <p>I'm getting an undefined references linker error <em>only</em> when linking optimized objects files, <em>not</em> when linking unoptimized object files. I don't understand what the problem is or could be.</p> <p>Here is my unoptimized build:</p> <pre> Building file: ../COMPASS.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"COMPASS.d" -MT"COMPASS.d" -o"COMPASS.o" "../COMPASS.cpp" Finished building: ../COMPASS.cpp Building file: ../PSA.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"PSA.d" -MT"PSA.d" -o"PSA.o" "../PSA.cpp" Finished building: ../PSA.cpp Building file: ../SAR.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"SAR.d" -MT"SAR.d" -o"SAR.o" "../SAR.cpp" Finished building: ../SAR.cpp Building file: ../constraints.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"constraints.d" -MT"constraints.d" -o"constraints.o" "../constraints.cpp" Finished building: ../constraints.cpp Building file: ../genetic.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"genetic.d" -MT"genetic.d" -o"genetic.o" "../genetic.cpp" Finished building: ../genetic.cpp Building file: ../globals.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"globals.d" -MT"globals.d" -o"globals.o" "../globals.cpp" Finished building: ../globals.cpp Building file: ../logging.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"logging.d" -MT"logging.d" -o"logging.o" "../logging.cpp" Finished building: ../logging.cpp Building file: ../main.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"main.d" -MT"main.d" -o"main.o" "../main.cpp" Finished building: ../main.cpp Building file: ../sampling.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"sampling.d" -MT"sampling.d" -o"sampling.o" "../sampling.cpp" Finished building: ../sampling.cpp Building file: ../simulation1.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"simulation1.d" -MT"simulation1.d" -o"simulation1.o" "../simulation1.cpp" ../globals.h: At global scope: ../globals.h:43: warning: inline function 'double showDecimals(const double&, const int&)' used but never defined Finished building: ../simulation1.cpp Building file: ../test_function.cpp Invoking: GCC C++ Compiler g++ -O0 -g3 -pg -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"test_function.d" -MT"test_function.d" -o"test_function.o" "../test_function.cpp" Finished building: ../test_function.cpp Building target: pc2 Invoking: GCC C++ Linker g++ -pg -fopenmp -pg -o"pc2" ./COMPASS.o ./PSA.o ./SAR.o ./constraints.o ./genetic.o ./globals.o ./logging.o ./main.o ./sampling.o ./simulation1.o ./test_function.o Finished building target: pc2 </pre> <p>Here is my optimized build:</p> <pre> Building file: ../COMPASS.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"COMPASS.d" -MT"COMPASS.d" -o"COMPASS.o" "../COMPASS.cpp" Finished building: ../COMPASS.cpp Building file: ../PSA.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"PSA.d" -MT"PSA.d" -o"PSA.o" "../PSA.cpp" Finished building: ../PSA.cpp Building file: ../SAR.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"SAR.d" -MT"SAR.d" -o"SAR.o" "../SAR.cpp" Finished building: ../SAR.cpp Building file: ../constraints.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"constraints.d" -MT"constraints.d" -o"constraints.o" "../constraints.cpp" Finished building: ../constraints.cpp Building file: ../genetic.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"genetic.d" -MT"genetic.d" -o"genetic.o" "../genetic.cpp" Finished building: ../genetic.cpp Building file: ../globals.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"globals.d" -MT"globals.d" -o"globals.o" "../globals.cpp" Finished building: ../globals.cpp Building file: ../logging.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"logging.d" -MT"logging.d" -o"logging.o" "../logging.cpp" Finished building: ../logging.cpp Building file: ../main.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"main.d" -MT"main.d" -o"main.o" "../main.cpp" Finished building: ../main.cpp Building file: ../sampling.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"sampling.d" -MT"sampling.d" -o"sampling.o" "../sampling.cpp" Finished building: ../sampling.cpp Building file: ../simulation1.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"simulation1.d" -MT"simulation1.d" -o"simulation1.o" "../simulation1.cpp" ../globals.h: At global scope: ../globals.h:43: warning: inline function 'double showDecimals(const double&, const int&)' used but never defined Finished building: ../simulation1.cpp Building file: ../test_function.cpp Invoking: GCC C++ Compiler g++ -O3 -Wall -c -fmessage-length=0 -Wno-sign-compare -fopenmp -MMD -MP -MF"test_function.d" -MT"test_function.d" -o"test_function.o" "../test_function.cpp" Finished building: ../test_function.cpp Building target: pc2 Invoking: GCC C++ Linker g++ -fopenmp -o"pc2" ./COMPASS.o ./PSA.o ./SAR.o ./constraints.o ./genetic.o ./globals.o ./logging.o ./main.o ./sampling.o ./simulation1.o ./test_function.o ./logging.o: In function `LOG_COMPASS_display_points_MATLAB(int const&, VisitedSet&)': logging.cpp:(.text+0x686): undefined reference to `VisitedSet::getSize()' collect2: ld returned 1 exit status make: *** [pc2] Error 1 make: Leaving directory `/home/djunderw/ncsu/workspace/pc2/release' </pre> <p>Any ideas?</p> <p><strong>[FIXED ISSUE WITH showDecimals() FUNCTION]</strong></p> <p>The file COMPASS.h includes this class template:</p> <pre><code>template&lt;class T&gt; class VisitedSet { public: VisitedSet(const T&amp; soln); int getSize(); void addSolution(const T&amp; soln); void evaluate(); void sample(const int&amp; numNewSolutions, Constraints&amp; space); void CSBiased_generateDistribution(); void constructMPA(Constraints&amp; space); vector&lt;T&gt; vec; double bestValue; int bestIndex; /* used to implement biased coordinate sampling */ double CSBiased_coefficient; vector&lt; vector&lt;double&gt; &gt; lastSampledPoints; vector&lt;int&gt; lastSampledPointsIndex; vector&lt; vector&lt;double&gt; &gt; newSampledPoints; vector&lt;int&gt; newSampledPointsIndex; vector&lt;double&gt; CSBiased_distribution; private: int iteration; int dimension; int SAR(); // simulation allocation rule }; </code></pre> <p>And COMPASS.cpp include the following code:</p> <pre><code>template&lt;class T&gt; int VisitedSet&lt;T&gt;::getSize() { return vec.size(); } </code></pre> <p>The logging.cpp files includes the following code:</p> <pre><code>#include "COMPASS.h" void LOG_COMPASS_display_points_MATLAB(const int&amp; iteration, VisitedSet&lt;Policy&gt;&amp; visited) { cout &lt;&lt; "points{"&lt;&lt;iteration+1&lt;&lt;"} = [\n" &lt;&lt; visited.vec[visited.bestIndex].x[0] &lt;&lt; "\t" &lt;&lt; visited.vec[visited.bestIndex].x[1] &lt;&lt; "\t" &lt;&lt; visited.vec[visited.bestIndex].meanQALY() &lt;&lt; ";" &lt;&lt; endl; for(int i=0; i&lt;visited.getSize(); i++) { if(i != visited.bestIndex) cout &lt;&lt; visited.vec[i].x[0] &lt;&lt; "\t" &lt;&lt; visited.vec[i].x[1] &lt;&lt; "\t" &lt;&lt; visited.vec[i].meanQALY() &lt;&lt; ";" &lt;&lt; endl; } cout &lt;&lt; "];\n"; } </code></pre>
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    1. USaschepler
    1. USsynaptik
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      1. POc++ linker error: undefined references only on optimized build
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      1. VTUpMod
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      1. POc++ linker error: undefined references only on optimized build
      1. USamit_grepclub
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    1. COCould it be that in your hurry you forgot to prepare a minimal case and post some code? ;-)
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      1. POc++ linker error: undefined references only on optimized build
      1. USMichael Krelin - hacker
    2. COShow the code. It's suspicious that you're getting a warning about `showDecimals` earlier in the log and then getting a linker error that refers to it later on, for what it's worth.
      singulars
      1. POc++ linker error: undefined references only on optimized build
      1. USStuart Golodetz
    3. COCould it be that you didn't implement `showDecimals(double const&, int const&)`?
      singulars
      1. POc++ linker error: undefined references only on optimized build
      1. USLuchian Grigore
 

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