From: Wolfgang Bumiller <wry.git@bumiller.com>
Date: Sat, 24 May 2014 15:51:26 +0000 (+0200)
Subject: propagate the 'inexact' flag on when initializing a constant
X-Git-Tag: xonotic-v0.8.1~9^2~32^2~10
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=536138273f7d9d82fe9212dfa06873a95d548c1d;p=xonotic%2Fgmqcc.git

propagate the 'inexact' flag on when initializing a constant
---

diff --git a/parser.c b/parser.c
index 00f8dfd..5666a82 100644
--- a/parser.c
+++ b/parser.c
@@ -5842,7 +5842,6 @@ skipvar:
                     else
                     {
                         var->hasvalue = true;
-                        var->inexact  = ((ast_value*)cexp)->inexact;
                         if (cval->expression.vtype == TYPE_STRING)
                             var->constval.vstring = parser_strdup(cval->constval.vstring);
                         else if (cval->expression.vtype == TYPE_FIELD)
@@ -5873,6 +5872,14 @@ skipvar:
                 vec_free(sy.argc);
                 var->cvq = cvq;
             }
+            /* a constant initialized to an inexact value should be marked inexact:
+             * const float x = <inexact>; should propagate the inexact flag
+             */
+            if (var->cvq == CV_CONST && var->expression.vtype == TYPE_FLOAT) {
+                cval = (ast_value*)cexp;
+                if (ast_istype(cexp, ast_value) && cval->hasvalue && cval->cvq == CV_CONST)
+                    var->inexact = cval->inexact;
+            }
         }
 
 another: