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JGM:

--- Quote from: Marcel on January 25, 2008, 09:06:40 pm ---Is it standard to initialize the variables in the loops?

--- End quote ---

On C++ is possible, but not on ANSI C

polygon7:

--- Quote from: Marcel on January 25, 2008, 09:06:40 pm ---Thanks.

--- Code: ----------------- Build: Debug in Timer ---------------

mingw32-g++.exe -Wall -fexceptions  -g     -c C:\C++\Timer\main.cpp -o obj\Debug\main.o
mingw32-g++.exe  -o bin\Debug\Timer.exe obj\Debug\main.o   
obj\Debug\main.o: In function `main':
C:/C++/Timer/main.cpp:32: undefined reference to `PlaySoundA@12'
C:/C++/Timer/main.cpp:56: undefined reference to `PlaySoundA@12'
collect2: ld returned 1 exit status
Process terminated with status 1 (0 minutes, 1 seconds)
2 errors, 0 warnings
--- End code ---

Do you know what's wrong here?

--- End quote ---
You should add a lib to linker options (but I don't remember which has PlaySound, probably winmm or user32).

Marcel:
winmm.lib. But why is in Code::Blocks the winmm.lib now libwinmm.a? MS VC++ 2005 EE was easier... x)

Jenna:

--- Quote from: Marcel on January 25, 2008, 09:06:40 pm ---Is it standard to initialize the variables in the loops?

--- End quote ---

Not necessarily.

If you want to use the last value of the loop-variable outside the loop (like in your "case (1):",  you need to declare the variable outside the loop.
A variable declared in the for-loop's head is only visible inside this loop.

Some very old or broken compilers might ignore that (there might even be a compiler-switch to do so), but it's not standard conform and not reliable.

darthdespotism:

--- Quote from: Marcel on January 25, 2008, 09:32:09 pm ---winmm.lib. But why is in Code::Blocks the winmm.lib now libwinmm.a? MS VC++ 2005 EE was easier... x)

--- End quote ---

You can use MS Toolkit compiler instead of MinGW. I guess there was some #pragma coment() used for Linking which is only supported by VS VC.

In Fact it will be libwinmm.a for MinGW, linked by -lwinmm (gcc adds the lib and .a automatically ;) )

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