On 4/19/2013 1:07 PM, David wrote:
I am using eclipse and gnu. (Maybe my version is to old.) I havestruct MyStruct { int a0,a1; }; void afunc(int &t) { cout<<"in para "<<t<<endl; t=5; } int main() { int a, b,c; MyStruct k; afunc(a); b=c+1; cout<<"b "<<b<<endl; afunc(b); k.a0=k.a1+a; cout<<"k.a0 "<<k.a0; afunc(k.a1); } As you can see a lot of uninitialized variables, but when I compile I get no warnings. Here is the result of a compilisation: **** Build of configuration Debug for project test **** make all Building file: ../src/test.cpp Invoking: Cygwin C++ Compiler g++ -D_CYGWIN -O0 -g3 -pedantic -Wall -c -fmessage-length=0 -MMD -MP -MF"src/test.d" -MT"src/test.d" -o"src/test.o" "../src/test.cpp" Finished building: ../src/test.cpp Building target: test.exe Invoking: Cygwin C++ Linker g++ -o"test.exe" ./src/test.o Finished building target: test.exe Why don't I get a warning?
likely your makefile is swallowing the output. g++ -Wall -pedantic prova.cpp -o prova prova.cpp: In function ‘int main()’: prova.cpp:18:8: warning: ‘c’ is used uninitialized in this function -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
