[Verse-cvs] [verse] SVN commit:[4524] Bug-fix: removed dependency on undefined behaviour in v_bignum_square_half() ( see Verse bug #8959, GCC bug #36026), many thanks to Lukas Jirkovsky

[Emil Brink]

Revision: 4524
          https://svn.blender.org//revision/?rev=4524&view=rev
Author:   emil
Date:     2008-04-28 19:43:18 +0200 (Mon, 28 Apr 2008)

Log Message:
-----------
Bug-fix: removed dependency on undefined behaviour in v_bignum_square_half() (see Verse bug #8959, GCC bug #36026), many thanks to Lukas Jirkovsky

Modified Paths:
--------------
    trunk/verse/v_bignum.c

Modified: trunk/verse/v_bignum.c
===================================================================
--- trunk/verse/v_bignum.c	2008-04-28 11:01:28 UTC (rev 4523)
+++ trunk/verse/v_bignum.c	2008-04-28 17:43:18 UTC (rev 4524)
@@ -768,7 +768,7 @@
 		for(j = i + 1; j < t; j++)
 		{
 /*			printf("computing uv=%X+2*%X*%X+%X\n", w[i + j], x[1 + j], x[1 + i], c);*/
-			uv = x[1 + j] * x[1 + i];
+			uv = ((VBigDigs) x[1 + j]) * ((VBigDigs) x[1 + i]);
 			high = (uv & 0x80000000) != 0;
 			uv *= 2;
 			ouv = uv;	/* Addition below might wrap and generate high bit. */