jscript: Added new is_finite helper.

dlls/jscript/global.c

@@ -264,8 +264,7 @@ static HRESULT JSGlobal_isFinite(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
         if(FAILED(hres))
             return hres;
 
-        if(!isinf(n) && !isnan(n))
-            ret = TRUE;
+        ret = is_finite(n);
     }
 
     if(r)

dlls/jscript/jscript.h

@@ -339,6 +339,7 @@ HRESULT variant_change_type(script_ctx_t*,VARIANT*,VARIANT*,VARTYPE) DECLSPEC_HI
 HRESULT decode_source(WCHAR*) DECLSPEC_HIDDEN;
 
 HRESULT double_to_string(double,jsstr_t**) DECLSPEC_HIDDEN;
+BOOL is_finite(double) DECLSPEC_HIDDEN;
 
 typedef struct named_item_t {
     IDispatch *disp;

dlls/jscript/jsutils.c

@@ -53,6 +53,11 @@ const char *debugstr_jsval(const jsval_t v)
     return NULL;
 }
 
+BOOL is_finite(double n)
+{
+    return !isnan(n) && !isinf(n);
+}
+
 #define MIN_BLOCK_SIZE  128
 #define ARENA_FREE_FILLER  0xaa
 
@@ -641,7 +646,7 @@ HRESULT to_int32(script_ctx_t *ctx, jsval_t v, INT *ret)
     if(FAILED(hres))
         return hres;
 
-    *ret = isnan(n) || isinf(n) ? 0 : n;
+    *ret = is_finite(n) ? n : 0;
     return S_OK;
 }
 

dlls/jscript/number.c

@@ -16,9 +16,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#include "config.h"
-#include "wine/port.h"
-
 #include <math.h>
 #include <assert.h>
 
@@ -257,7 +254,7 @@ static HRESULT Number_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, u
 
     val = number->value;
 
-    if(radix==10 || isnan(val) || isinf(val)) {
+    if(radix==10 || !is_finite(val)) {
         hres = to_string(ctx, jsval_number(val), &str);
         if(FAILED(hres))
             return hres;
@@ -383,7 +380,7 @@ static HRESULT Number_toFixed(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, un
     }
 
     val = number->value;
-    if(isinf(val) || isnan(val)) {
+    if(!is_finite(val)) {
         hres = to_string(ctx, jsval_number(val), &str);
         if(FAILED(hres))
             return hres;
@@ -424,7 +421,7 @@ static HRESULT Number_toExponential(script_ctx_t *ctx, vdisp_t *jsthis, WORD fla
     }
 
     val = number->value;
-    if(isinf(val) || isnan(val)) {
+    if(!is_finite(val)) {
         hres = to_string(ctx, jsval_number(val), &str);
         if(FAILED(hres))
             return hres;
@@ -465,7 +462,7 @@ static HRESULT Number_toPrecision(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags
     }
 
     val = number->value;
-    if(isinf(val) || isnan(val) || !prec) {
+    if(!is_finite(val) || !prec) {
         hres = to_string(ctx, jsval_number(val), &str);
         if(FAILED(hres))
             return hres;