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  question about g++ errors when compiling  (Read 1434 times)
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Offline dugh

Senior Newbie





« Posted 2006-03-24 01:03:42 »

Sorry for the dumb question, but I'm trying to compile jinput from cvs, in case I need to add some things for my own app.
I 'm getting errors with a couple of the switch-case statements in the directx plugin input.cpp file, and wasn't sure if I needed to change something with my g++ or what.  I installed mingw 5.0.2 on windows xp, and I'm using the latest directx sdk (feb 2006).

Also I didn't know if you would want to include jutils.jar in the cvs repository or not since jinput depends on it.

Great work on jinput though!

compile:
     [exec] src/native/input.cpp: In function `BOOL EnumObjectsCallback(const DIDEVICEOBJECTINSTANCE*, void*)':
     [exec] src/native/input.cpp:842: error: a casts to a type other than an integral or enumeration type cannot appear in a constant-expression
     [exec] src/native/input.cpp:842: error: '->' cannot appear in a constant-expression
     [exec] src/native/input.cpp:842: error: `&' cannot appear in a constant-expression
     [exec] src/native/input.cpp:846: error: a casts to a type other than an integral or enumeration type cannot appear in a constant-expression
     [exec] src/native/input.cpp:846: error: '->' cannot appear in a constant-expression
     [exec] src/native/input.cpp:846: error: `&' cannot appear in a constant-expression
     [exec] src/native/input.cpp:850: error: a casts to a type other than an integral or enumeration type cannot appear in a constant-expression
......(snip).........
     [exec] src/native/input.cpp: In function `jboolean Java_net_java_games_input_DirectInputMouse_pollNative(JNIEnv*, _jobject*, jlong, _jbyteArray*)':
     [exec] src/native/input.cpp:1350: error: a casts to a type other than an integral or enumeration type cannot appear in a constant-expression
     [exec] src/native/input.cpp:1350: error: '->' cannot appear in a constant-expression
     [exec] src/native/input.cpp:1350: error: `&' cannot appear in a constant-expression
     [exec] src/native/input.cpp:1355: error: a casts to a type other than an integral or enumeration type cannot appear in a constant-expression
     [exec] src/native/input.cpp:1355: error: '->' cannot appear in a constant-expression
     [exec] src/native/input.cpp:1355: error: `&' cannot appear in a constant-expression
     [exec] src/native/input.cpp:1360: error: a casts to a type other than an integral or enumeration type cannot appear in a constant-expression
 
Offline dugh

Senior Newbie





« Reply #1 - Posted 2006-03-28 12:31:47 »

What version of mingw and g++ are people using?
I have mingw 5.0.2 and g++ 3.4.2
Offline dugh

Senior Newbie





« Reply #2 - Posted 2006-03-28 13:45:28 »

I downgraded and got the same error.
I'm interested in adding a spring force feedback effect to input.cpp  (DICONDITION instead of DICONSTANT).
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Offline dugh

Senior Newbie





« Reply #3 - Posted 2006-03-28 14:04:40 »

I guess it was a change with switch statements between gcc 2 and gcc 3.  I have it compiling now.
I see this other version does the directx stuff completely differently, so I'll try that too.
http://download.oddlabs.com/oss_svnroot/sun/jinput/plugins/windows/src/native/
Offline dugh

Senior Newbie





« Reply #4 - Posted 2006-03-28 14:50:13 »

There is a jutils error, it tries to load
net/java/games/input/DirectInputEnvironmentPlugin
It should have replaced the slashes with periods (.).
I guess that requires fixing jutils.
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