Piotr Caban : jscript: Make parsing of double more accurate.
Alexandre Julliard
julliard at winehq.org
Thu Apr 19 13:27:52 CDT 2012
Module: wine
Branch: master
Commit: b81e44f8d975013a1039772fcfb228488335ff55
URL: http://source.winehq.org/git/wine.git/?a=commit;h=b81e44f8d975013a1039772fcfb228488335ff55
Author: Piotr Caban <piotr at codeweavers.com>
Date: Thu Apr 19 15:28:30 2012 +0200
jscript: Make parsing of double more accurate.
---
dlls/jscript/global.c | 4 +++-
dlls/jscript/lex.c | 2 +-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/dlls/jscript/global.c b/dlls/jscript/global.c
index 13b2cc9..92c70bc 100644
--- a/dlls/jscript/global.c
+++ b/dlls/jscript/global.c
@@ -621,7 +621,9 @@ static HRESULT JSGlobal_parseFloat(script_ctx_t *ctx, vdisp_t *jsthis, WORD flag
}
V_VT(retv) = VT_R8;
- V_R8(retv) = (double)(positive?d:-d)*pow(10, exp);
+ if(!positive)
+ d = -d;
+ V_R8(retv) = (exp>0 ? d*pow(10, exp) : d/pow(10, -exp));
return S_OK;
}
diff --git a/dlls/jscript/lex.c b/dlls/jscript/lex.c
index 3bb2814..42e482f 100644
--- a/dlls/jscript/lex.c
+++ b/dlls/jscript/lex.c
@@ -474,7 +474,7 @@ static int parse_double_literal(parser_ctx_t *ctx, LONG int_part, literal_t **li
else exp += e;
}
- *literal = new_double_literal(ctx, (DOUBLE)d*pow(10, exp));
+ *literal = new_double_literal(ctx, exp>=0 ? d*pow(10, exp) : d/pow(10, -exp));
return tNumericLiteral;
}
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