[GRASS-SVN] r66548 - grass/trunk/raster/r.mapcalc
svn_grass at osgeo.org
svn_grass at osgeo.org
Tue Oct 20 04:16:56 PDT 2015
Author: marisn
Date: 2015-10-20 04:16:56 -0700 (Tue, 20 Oct 2015)
New Revision: 66548
Modified:
grass/trunk/raster/r.mapcalc/r.mapcalc.html
grass/trunk/raster/r.mapcalc/r3.mapcalc.html
Log:
r.mapcalc documentation update:
"Using the same map for input and output results in undefined behaviour"
https://lists.osgeo.org/pipermail/grass-dev/2011-July/054983.html
Modified: grass/trunk/raster/r.mapcalc/r.mapcalc.html
===================================================================
--- grass/trunk/raster/r.mapcalc/r.mapcalc.html 2015-10-20 10:11:22 UTC (rev 66547)
+++ grass/trunk/raster/r.mapcalc/r.mapcalc.html 2015-10-20 11:16:56 UTC (rev 66548)
@@ -12,7 +12,7 @@
<p>where <em>result</em> is the name of a raster map layer
to contain the result of the calculation and
<b>expression</b> is any legal arithmetic expression involving existing
-raster map layers, integer or floating point constants,
+raster map layers (except <em>result</em> itself), integer or floating point constants,
and functions known to the calculator.
Parentheses are allowed in the expression and may be nested to any depth.
<em>result</em> will be created in the user's current mapset.
Modified: grass/trunk/raster/r.mapcalc/r3.mapcalc.html
===================================================================
--- grass/trunk/raster/r.mapcalc/r3.mapcalc.html 2015-10-20 10:11:22 UTC (rev 66547)
+++ grass/trunk/raster/r.mapcalc/r3.mapcalc.html 2015-10-20 11:16:56 UTC (rev 66548)
@@ -12,7 +12,7 @@
<p>where <em>result</em> is the name of a raster map layer
to contain the result of the calculation and
<b>expression</b> is any legal arithmetic expression involving existing
-raster map layers, integer or floating point constants,
+raster map layers (except <em>result</em> itself), integer or floating point constants,
and functions known to the calculator.
Parentheses are allowed in the expression and may be nested to any depth.
<em>result</em> will be created in the user's current mapset.
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