commit 6679d7c0b1a5a0b37d2426a0c275eaccffb22e60
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Thu Jul 29 21:05:45 2010 -0500
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Thu Jul 29 21:05:45 2010 -0500
tree 2e525856ffc86342ad3b414ad9c3b90bd532a3e0
parent dbe0c9d8c748d2311ea1c086e441a7fe3a9b03c8

[devel] Guard instances of "floor()" with PNG_FLOATING_ARITHMETIC_SUPPORTED

png.c

diff --git a/png.c b/png.c
index 28537d9..cce7a00 100644
--- a/png.c
+++ b/png.c
@@ -1159,7 +1159,11 @@
                else
                {
         	  /* End of loop - round the whole number. */
+#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
         	  d = floor(fp + .5);
+#else
+        	  d = (double)((int)(fp + .5));
+#endif
 
         	  if (d > 9)
         	  {
@@ -1343,7 +1347,11 @@
 png_fixed_point
 png_fixed(png_structp png_ptr, double fp, png_const_charp text)
 {
+#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
    double r = floor(100000 * fp + .5);
+#else
+   double r = (double)((int)(100000 * fp + .5));
+#endif
    if (r <= 2147483647. && r >= -2147483648.)
       return (png_fixed_point)r;