The below at the bottom of this comment gives: /usr/local/bin/g++ -v -save-temps -std=gnu++0x -o CMakeFiles/gccError.dir/gccError.cpp.o -c /home/darlingm/code.gccerror/testing/gccError/gccError.cpp
Using built-in specs. COLLECT_GCC=/usr/local/bin/g++ COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc/configure --disable-multilib --enable-language=c,c++ --disable-nls Thread model: posix gcc version 4.6.0 20100418 (experimental) (GCC) COLLECT_GCC_OPTIONS='-v' '-save-temps' '-std=gnu++0x' '-o' 'CMakeFiles/gccError.dir/gccError.cpp.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus -E -quiet -v -D_GNU_SOURCE /home/mdarling/code.gccerror/testing/gccError/gccError.cpp -mtune=generic -march=x86-64 -std=gnu++0x -fpch-preprocess -o gccError.ii ignoring nonexistent directory "/usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../include/c++/4.6.0 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../include/c++/4.6.0/x86_64-unknown-linux-gnu /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../include/c++/4.6.0/backward /usr/local/include /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include-fixed /usr/include End of search list. COLLECT_GCC_OPTIONS='-v' '-save-temps' '-std=gnu++0x' '-o' 'CMakeFiles/gccError.dir/gccError.cpp.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus -fpreprocessed gccError.ii -quiet -dumpbase gccError.cpp -mtune=generic -march=x86-64 -auxbase-strip CMakeFiles/gccError.dir/gccError.cpp.o -std=gnu++0x -version -o gccError.s GNU C++ (GCC) version 4.6.0 20100418 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.6.0 20100418 (experimental), GMP version 4.3.1, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C++ (GCC) version 4.6.0 20100418 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.6.0 20100418 (experimental), GMP version 4.3.1, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 7af0c1b1da9d8e649a58d85fd58b2bfb /home/mdarling/code.gccerror/testing/gccError/gccError.cpp: In lambda function: /home/mdarling/code.gccerror/testing/gccError/gccError.cpp:25:14: error: 'classInstance' is not captured /home/mdarling/code.gccerror/testing/gccError/gccError.cpp:26:4: internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in cv_unqualified, at cp/tree.c:937 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. The original internal compiler error was of course in a much larger project, and had a bunch of other code errors on it being the first compile attempt. I got tunnel visioned at the first sight of an internal compiler error and spent hours re-checking out the svn gcc source and recompiling, in case my svn version from a week ago had a fixed bug in it. After removing irrelevant portions of the program to get down to a small test case, it appears that calling a member function of a non-captured class gives an internal compiler error. Properly changing the lambda expression line to "function<string ()> lambdaExpression = [&classInstance] () {" prevents the internal compiler error. I know it's invalid c++0x code that's causing the internal compiler error, but removing the internal compiler error and only showing the message "error: 'classInstance' is not captured" might save someone else a few hours who gets tunnel visioned on the one error. :) ========== #include <iostream> #include <string> #include <functional> using namespace std; class theClass { public: theClass(); string getA(); private: string a; }; theClass::theClass() : a("theData") { } string theClass::getA() { return a; } int main() { theClass classInstance; function<string ()> lambdaExpression = [] () { return classInstance.getA(); }; cout << lambdaExpression() << endl; } -- Summary: In lambda express, calling member function of non- captured class gives internal compiler error Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: darlingm at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43792