Strange runtime error in Compiled function
- To: mathgroup at smc.vnet.net
- Subject: [mg127548] Strange runtime error in Compiled function
- From: Axel <axel.kowald at gmail.com>
- Date: Fri, 3 Aug 2012 04:17:00 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
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Hi everybody,
I'm using Mathematica 8.0.1 on a 32bit Win7 system and I have strange problems with the Compile function.
I have this simple function:
compileTestC = Compile[{{paramList, _Integer, 1}},
Module[{a, b},
Print[paramList[[1]]];
a = paramList[[1]];
If[False,
b = 1,
b = 0
] ;
Return[5]
]
] ;
When I compile and run it the first time, it produces the expected results:
compileTestC[{100}]
100
5
But for all subsequent calls I get this strange error message:
compileTestC[{100}]
100
CompiledFunction::cflist: Nontensor object generated; proceeding with uncompiled evaluation. >>
100
5
Furthermore, small changes to the source code make the error disappear.
For instance deleting the line "a = paramList[[1]];" or deleting the If statement.
This sounds really crazy for me and I have no idea what's going on.
Can anybody help ? Maybe it's a bug in Mathematica ?
Thanks,
Axel