On 2008-12-14 14:02-0800 Alan W. Irwin wrote:
> [...]This patch is only part of the story.
--- drivers/xfig.c 2008-12-14 14:40:29.000000000 -0800
+++ drivers/xfig.c~ 2008-12-14 12:31:45.000000000 -0800
@@ -414,7 +414,7 @@
flushbuffer(PLStream *pls)
{
PLDev *dev = pls->dev;
- int i = 0;
+ short i = 0;
if (count == 0)
return;
If you put the above patch on top of the previous one, everything now
works fine with example 27. The resulting file size is reasonable (3.7M)
and gives reasonable looking results with xfig. However, could some
C expert here interpret
*(buffptr + count++) = x1;
for me, where x1 and count are int. and buffprt is short* ? (x1 just stores
a value of a short so a short* for buffprt loses no precision.) The above
statement is an example of several statements like this that appear in
xfig.c.
For the svn trunk version, count is a short (the source of the original
problem), but I am concerned that if you turn it into an int (as demanded by
example 27) some implicit casting is going on in statements like above that
may not work properly for all compilers.
If you add an int to a pointer to a short is the result always a pointer to
a short? What is the syntax for doing all casting explicitly with the above
statement (so I will better understand it in future)?
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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