[PATCH 1/1] combase: Use the iswxdigit function instead of reimplementing it.

[Alex Henrie]

From: Alex Henrie

---
 dlls/combase/combase.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/dlls/combase/combase.c b/dlls/combase/combase.c
index 0695bb77405..15c2836bc0c 100644
--- a/dlls/combase/combase.c
+++ b/dlls/combase/combase.c
@@ -1308,15 +1308,6 @@ HRESULT WINAPI DECLSPEC_HOTPATCH ProgIDFromCLSID(REFCLSID clsid, LPOLESTR *progi
     return hr;
 }

-static inline BOOL is_valid_hex(WCHAR c)
-{
-    if (!(((c >= '0') && (c <= '9'))  ||
-          ((c >= 'a') && (c <= 'f'))  ||
-          ((c >= 'A') && (c <= 'F'))))
-        return FALSE;
-    return TRUE;
-}
-
 static const BYTE guid_conv_table[256] =
 {
     0,   0,   0,   0,   0,   0,   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
@@ -1346,7 +1337,7 @@ static BOOL guid_from_string(LPCWSTR s, GUID *id)
     id->Data1 = 0;
     for (i = 1; i < 9; ++i)
     {
-        if (!is_valid_hex(s[i])) return FALSE;
+        if (!iswxdigit(s[i])) return FALSE;
         id->Data1 = (id->Data1 << 4) | guid_conv_table[s[i]];
     }
     if (s[9] != '-') return FALSE;
@@ -1354,7 +1345,7 @@ static BOOL guid_from_string(LPCWSTR s, GUID *id)
     id->Data2 = 0;
     for (i = 10; i < 14; ++i)
     {
-        if (!is_valid_hex(s[i])) return FALSE;
+        if (!iswxdigit(s[i])) return FALSE;
         id->Data2 = (id->Data2 << 4) | guid_conv_table[s[i]];
     }
     if (s[14] != '-') return FALSE;
@@ -1362,7 +1353,7 @@ static BOOL guid_from_string(LPCWSTR s, GUID *id)
     id->Data3 = 0;
     for (i = 15; i < 19; ++i)
     {
-        if (!is_valid_hex(s[i])) return FALSE;
+        if (!iswxdigit(s[i])) return FALSE;
         id->Data3 = (id->Data3 << 4) | guid_conv_table[s[i]];
     }
     if (s[19] != '-') return FALSE;
@@ -1374,7 +1365,7 @@ static BOOL guid_from_string(LPCWSTR s, GUID *id)
             if (s[i] != '-') return FALSE;
             i++;
         }
-        if (!is_valid_hex(s[i]) || !is_valid_hex(s[i + 1])) return FALSE;
+        if (!iswxdigit(s[i]) || !iswxdigit(s[i + 1])) return FALSE;
         id->Data4[(i - 20) / 2] = guid_conv_table[s[i]] << 4 | guid_conv_table[s[i + 1]];
     }