[libdfp-patches] [PATCH] Fix operation precedence in strtod32.c

[Luis Machado <luisgpm@xxxxxxxxxxxxxxxxxx>]

This patch fixes a conversion issue that showed up when trying to
convert the "0.9999999" string to decimal32.

printf("strtod32(\"0.9999999\",NULL)    --> %.10Hf\n", strtod32("0.9999999", NULL))

The result with the unpatched version is 1.0000000000, which is
incorrect since decimal32 has 7 digits of precision.

The patched output is the expected 0.9999999000 value.

Luis

2010-12-09  Luis Machado  <luisgpm@xxxxxxxxxx>

	* strtod32.c: Fix precedence of arithmetic operation.

Index: strtod32.c
===================================================================
--- strtod32.c	(revision 12256)
+++ strtod32.c	(working copy)
@@ -912,7 +912,7 @@
 	      }
 #endif
 	  if(base == 10)
-	    d32 = d32 * base + *startp - L_('0');
+	    d32 = d32 * base + (*startp - L_('0'));
 	  else
 	    d32 = d32 * base + (*startp >= L_('0') && *startp <= L_('9') ?
 			-L_('0') : 10-L_('a')) + *startp;
@@ -959,7 +959,7 @@
 	if (int_no < MANT_DIG)
 	  {
 	    if(base == 10)
-	      d32 = d32*10 + *startp - L_('0');
+	      d32 = d32*10 + (*startp - L_('0'));
 	    else
 	      d32 = d32*10 + (*startp >= L_('0') &&
 		*startp <= L_('9') ? -L_('0') : 10-L_('a'))