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Re: compilation warnings in liboctave/CMatrix.cc
From: |
CdeMills |
Subject: |
Re: compilation warnings in liboctave/CMatrix.cc |
Date: |
Thu, 13 Jan 2011 14:15:31 -0800 (PST) |
John W. Eaton wrote:
>
> On 13-Jan-2011, CdeMills wrote:
>
> | Any idea why this message is produced ?
>
> Part of the answer is that the macro used to call Fortran code inserts
> a call to setjmp for error handling, but I don't know precisely the
> rules that GCC uses to decide when the problem can occur. When a
> variable is in a register?
>
The following patch remove the warning in dbleLU.cc:
diff -r a1deab9a6e71 liboctave/dbleLU.cc
--- a/liboctave/dbleLU.cc Wed Jan 12 03:40:19 2011 -0500
+++ b/liboctave/dbleLU.cc Thu Jan 13 23:12:55 2011 +0100
@@ -77,7 +77,12 @@
octave_idx_type info = 0;
- F77_XFCN (dgetrf, DGETRF, (a_nr, a_nc, tmp_data, a_nr, pipvt, info));
+ // F77_XFCN contains a setjmp() -- save and restore mn trough a volative
+ {
+ volatile octave_idx_type saved_mn = mn;
+ F77_XFCN (dgetrf, DGETRF, (a_nr, a_nc, tmp_data, a_nr, pipvt, info));
+ mn = saved_mn;
+ }
for (octave_idx_type i = 0; i < mn; i++)
pipvt[i] -= 1;
Regards
Pascal
--
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Re: compilation warnings in liboctave/CMatrix.cc, Jordi GutiƩrrez Hermoso, 2011/01/13