On 2008-01-18 19:51+0100 Torquil Macdonald S�rensen wrote:
Hi Torquil:
Thanks for giving a simple example of the issue you have discovered. I made
some minimal changes to your code so it worked for C, and could not confirm
the issue for that case.
However, I did confirm there is an issue for the C++ case.
I made the following changes to your test C++ code so that it had the same
#include as our current set of C++ examples and also had the ability to
parse the command line (to give a convenient choice of device drivers).
--- test.cc_old 2008-01-18 13:39:56.000000000 -0800
+++ test.cc 2008-01-18 13:38:52.000000000 -0800
@@ -1,12 +1,14 @@
-#include <plplot/plplot.h>
+#include "plc++demos.h"
+#ifdef USE_NAMESPACE
using namespace std;
+#endif
-int main() {
+int main(int argc, const char *argv[]) {
double x[] = { 0.1, 0.5, 0.2, 0.4, 0.4 };
double y[] = { 0.5, 0.4, 0.4, 0.8, 0.9 };
- plsdev("wxwidgets");
+ plparseopts(&argc, argv, PL_PARSE_FULL);
plinit();
plenv(0, 1, 0, 1, 1, -2);
For that minimally patched version I confirm the issue for Linux (Debian
testing).
OTOH, Example x10.cc does not show this problem. Could somebody who is more
experienced than me with C++ gradually change over the above test code to
the same style as example 10 to see what C++ example style change exposes
this initialization issue?
Once we have determined that, then we will be in a better position to solve
the issue (or make recommendations about what C++ application style to
avoid).
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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