Jacek Caban : jscript: Added NaN handling to relational operators.
Alexandre Julliard
julliard at winehq.org
Fri Oct 17 07:25:49 CDT 2008
Module: wine
Branch: master
Commit: 4f6f8ef2d8a196e565488daa96198835ac6df40e
URL: http://source.winehq.org/git/wine.git/?a=commit;h=4f6f8ef2d8a196e565488daa96198835ac6df40e
Author: Jacek Caban <jacek at codeweavers.com>
Date: Thu Oct 16 14:31:30 2008 -0500
jscript: Added NaN handling to relational operators.
---
dlls/jscript/engine.c | 31 +++++++++++++++++++------------
dlls/jscript/tests/lang.js | 12 ++++++++++++
2 files changed, 31 insertions(+), 12 deletions(-)
diff --git a/dlls/jscript/engine.c b/dlls/jscript/engine.c
index 9c53951..815d5fd 100644
--- a/dlls/jscript/engine.c
+++ b/dlls/jscript/engine.c
@@ -16,6 +16,9 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
+#include "config.h"
+#include "wine/port.h"
+
#include <math.h>
#include "jscript.h"
@@ -2599,7 +2602,7 @@ HRESULT not_equal2_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD f
}
/* ECMA-262 3rd Edition 11.8.5 */
-static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
+static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, BOOL greater, jsexcept_t *ei, BOOL *ret)
{
VARIANT l, r, ln, rn;
HRESULT hres;
@@ -2615,7 +2618,7 @@ static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept
}
if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
- *ret = strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0;
+ *ret = (strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0) ^ greater;
SysFreeString(V_BSTR(&l));
SysFreeString(V_BSTR(&r));
return S_OK;
@@ -2629,10 +2632,14 @@ static HRESULT less_eval(exec_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept
if(FAILED(hres))
return hres;
- if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4)
- *ret = V_I4(&ln) < V_I4(&rn);
- else
- *ret = num_val(&ln) < num_val(&rn);
+ if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4) {
+ *ret = (V_I4(&ln) < V_I4(&rn)) ^ greater;
+ }else {
+ DOUBLE ld = num_val(&ln);
+ DOUBLE rd = num_val(&rn);
+
+ *ret = !isnan(ld) && !isnan(rd) && ((ld < rd) ^ greater);
+ }
return S_OK;
}
@@ -2651,7 +2658,7 @@ HRESULT less_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags,
if(FAILED(hres))
return hres;
- hres = less_eval(ctx, &lval, &rval, ei, &b);
+ hres = less_eval(ctx, &lval, &rval, FALSE, ei, &b);
VariantClear(&lval);
VariantClear(&rval);
if(FAILED(hres))
@@ -2674,13 +2681,13 @@ HRESULT lesseq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags
if(FAILED(hres))
return hres;
- hres = less_eval(ctx, &rval, &lval, ei, &b);
+ hres = less_eval(ctx, &rval, &lval, TRUE, ei, &b);
VariantClear(&lval);
VariantClear(&rval);
if(FAILED(hres))
return hres;
- return return_bool(ret, !b);
+ return return_bool(ret, b);
}
/* ECMA-262 3rd Edition 11.8.2 */
@@ -2697,7 +2704,7 @@ HRESULT greater_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flag
if(FAILED(hres))
return hres;
- hres = less_eval(ctx, &rval, &lval, ei, &b);
+ hres = less_eval(ctx, &rval, &lval, FALSE, ei, &b);
VariantClear(&lval);
VariantClear(&rval);
if(FAILED(hres))
@@ -2720,13 +2727,13 @@ HRESULT greatereq_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD fl
if(FAILED(hres))
return hres;
- hres = less_eval(ctx, &lval, &rval, ei, &b);
+ hres = less_eval(ctx, &lval, &rval, TRUE, ei, &b);
VariantClear(&lval);
VariantClear(&rval);
if(FAILED(hres))
return hres;
- return return_bool(ret, !b);
+ return return_bool(ret, b);
}
/* ECMA-262 3rd Edition 11.4.8 */
diff --git a/dlls/jscript/tests/lang.js b/dlls/jscript/tests/lang.js
index bbafb6e..2b92d68 100644
--- a/dlls/jscript/tests/lang.js
+++ b/dlls/jscript/tests/lang.js
@@ -801,4 +801,16 @@ ok(isFinite(0.5, NaN) === true, "isFinite(0.5, NaN) !== true");
ok(isFinite(NaN, 0.5) === false, "isFinite(NaN, 0.5) !== false");
ok(isFinite() === false, "isFinite() !== false");
+ok((1 < NaN) === false, "(1 < NaN) !== false");
+ok((1 > NaN) === false, "(1 > NaN) !== false");
+ok((1 <= NaN) === false, "(1 <= NaN) !== false");
+ok((1 >= NaN) === false, "(1 >= NaN) !== false");
+ok((NaN < 1) === false, "(NaN < 1) !== false");
+ok((NaN > 1) === false, "(NaN > 1) !== false");
+ok((NaN <= 1) === false, "(NaN <= 1) !== false");
+ok((NaN >= 1) === false, "(NaN >= 1) !== false");
+ok((Infinity < 2) === false, "(Infinity < 2) !== false");
+ok((Infinity > 2) === true, "(Infinity > 2) !== true");
+ok((-Infinity < 2) === true, "(-Infinity < 2) !== true");
+
reportSuccess();
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