Changeset 394 for trunk/Include/basic/function.sbp

Timestamp:

Dec 9, 2007, 3:03:51 PM (17 years ago)

Author:

イグトランス (egtra)

Message:

_System_HashFromUIntの追加（[392]から必要だった）。AscWで上位サロゲートだけのLength = 1の場合に、2字目を読みに行かないようにした。

File:

• trunk/Include/basic/function.sbp (modified) (6 diffs)

trunk/Include/basic/function.sbp

@@ -243 +243 @@
 '------------
 
-Function Asc(buf As *StrChar) As StrChar
+Function Asc(buf As String) As StrChar
     Asc = buf[0]
 End Function
@@ -253 +253 @@
 #ifndef __STRING_IS_NOT_UNICODE
 Function AscW(s As String) As UCSCHAR
-    If s.Length = 0 Then
+    If String.IsNullOrEmpty(s) Then
         AscW = 0
-    Else
-        If _System_IsSurrogatePair(s[0], s[1]) Then
-            AscW = ((s[0] And &h3FF) As DWord << 10) Or (s[1] And &h3FF)
+        'ArgumentNullExceptionに変えるかも
+    Else
+        If _System_IsHighSurrogate(s[0]) Then
+            '有効なサロゲートペアになっていない場合には、
+            '例外を投げるようにしたほうがよいかもしれない。
+            If s.Length > 1 Then
+                If _System_IsLowSurrogate(s[0]) Then
+                    AscW = ((s[0] And &h3FF) As DWord << 10) Or (s[1] And &h3FF)
+                    Exit Function
+                End If
+            End If
         Else
             AscW = s[0]
@@ -267 +275 @@
     If c <= &hFFFF Then
         Return New String(c As StrChar, 1)
-    ElseIf c < &h10FFFF Then
-        Dim t[1] = [&hD800 Or (c >> 10), &hDC00 Or (c And &h3FF)] As WCHAR
+    ElseIf c <= &h10FFFF Then
+        Dim t[1] As WCHAR
+        t[0] = (&hD800 Or (c >> 10)) As WCHAR
+        t[1] = (&hDC00 Or (c And &h3FF)) As WCHAR
         Return New String(t, 2)
     Else
-        'ArgumentOutOfRangeException
+        Throw New System.ArgumentOutOfRangeException("ChrW: c is invalid Unicode code point.", "c")
     End If
 End Function
@@ -691 +701 @@
     Else
         '10進数
+#ifdef __STRING_IS_NOT_UNICODE
         sscanf(buf,"%lf",VarPtr(Val))
+#else
+        swscanf(buf,ToWCStr("%lf"),VarPtr(Val))
+#endif
     End If
 End Function
@@ -917 +931 @@
 End Function
 
+Function _System_HashFromUInt(x As QWord) As Long
+    Return (HIDWORD(x) Xor LODWORD(x)) As Long
+End Function
+
+Function _System_HashFromUInt(x As DWord) As Long
+    Return x As Long
+End Function
+
 Function _System_HashFromPtr(p As VoidPtr) As Long
-#ifdef _WIN64
-    Dim qw = p As QWord
-    Return (HIDWORD(qw) Xor LODWORD(qw)) As Long
-#else
-    Return p As Long
-#endif
+    Return _System_HashFromUInt(p As ULONG_PTR)
 End Function
 
@@ -952 +969 @@
 '--------
 Function _System_IsSurrogatePair(wcHigh As WCHAR, wcLow As WCHAR) As Boolean
-    If &hD800 <= wcHigh And wcHigh < &hDC00 Then
-        If &hDC00 <= wcLow And wcLow < &hE000 Then
+    If _System_IsHighSurrogate(wcHigh) Then
+        If _System_IsLowSurrogate(wcLow) Then
             Return True
         End If
     End If
     Return False
+End Function
+
+Function _System_IsHighSurrogate(c As WCHAR) As Boolean
+    Return &hD800 <= c And c < &hDC00
+End Function
+
+Function _System_IsLowSurrogate(c As WCHAR) As Boolean
+    Return &hDC00 <= c And c < &hE000 
 End Function