From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Thu, 30 Aug 2012 20:22:17 +0000 (+0000)
Subject: Fix bugs in parsing wxLongLong values starting with zeroes.
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/8421cb3c7cab3017fd991ee628126813ee2d794a

Fix bugs in parsing wxLongLong values starting with zeroes.

wxCRT_StrtoullBase(), used by wxString::To[U]LongLong(), didn't handle leading
zeroes nor leading 0x correctly: it never auto-detected base 8; didn't ignore
the leading 0 even if base 8 was specified explicitly; didn't recognize "0X"
prefix at all (only "0x").

Fix all these bugs and add test cases for parsing numbers in other bases to
the unit tests.

Closes #14596.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72408 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/common/wxcrt.cpp b/src/common/wxcrt.cpp
index de9012b6d5..f58ac30fd0 100644
--- a/src/common/wxcrt.cpp
+++ b/src/common/wxcrt.cpp
@@ -975,23 +975,35 @@ wxCRT_StrtoullBase(const T* nptr, T** endptr, int base, T* sign)
         }
     }
 
-    // Starts with 0x?
+    // Starts with octal or hexadecimal prefix?
     if ( i != end && *i == wxT('0') )
     {
         ++i;
         if ( i != end )
         {
-            if ( *i == wxT('x') && (base == 16 || base == 0) )
+            if ( (*i == wxT('x')) || (*i == wxT('X')) )
             {
-                base = 16;
-                ++i;
+                // Hexadecimal prefix: use base 16 if auto-detecting.
+                if ( base == 0 )
+                    base = 16;
+
+                // If we do use base 16, just skip "x" as well.
+                if ( base == 16 )
+                {
+                    ++i;
+                }
+                else // Not using base 16
+                {
+                    // Then it's an error.
+                    if ( endptr )
+                        *endptr = (T*) nptr;
+                    wxSET_ERRNO(EINVAL);
+                    return sum;
+                }
             }
-            else
+            else if ( base == 0 )
             {
-                if ( endptr )
-                    *endptr = (T*) nptr;
-                wxSET_ERRNO(EINVAL);
-                return sum;
+                base = 8;
             }
         }
         else
diff --git a/tests/strings/strings.cpp b/tests/strings/strings.cpp
index e1d7262bb9..a0485c9007 100644
--- a/tests/strings/strings.cpp
+++ b/tests/strings/strings.cpp
@@ -599,6 +599,7 @@ static const struct ToLongData
     long value;
 #endif // wxLongLong_t
     int flags;
+    int base;
 
     long LValue() const { return value; }
     unsigned long ULValue() const { return value; }
@@ -629,6 +630,22 @@ static const struct ToLongData
     { wxT("9223372036854775808"), wxULL(9223372036854775808), Number_LongLong |
                                                              Number_Unsigned },
 #endif // wxLongLong_t
+
+    // Base tests.
+    { wxT("010"),  10, Number_Ok, 10 },
+    { wxT("010"),   8, Number_Ok,  0 },
+    { wxT("010"),   8, Number_Ok,  8 },
+    { wxT("010"),  16, Number_Ok, 16 },
+
+    { wxT("0010"), 10, Number_Ok, 10 },
+    { wxT("0010"),  8, Number_Ok,  0 },
+    { wxT("0010"),  8, Number_Ok,  8 },
+    { wxT("0010"), 16, Number_Ok, 16 },
+
+    { wxT("0x11"),  0, Number_Invalid, 10 },
+    { wxT("0x11"), 17, Number_Ok,       0 },
+    { wxT("0x11"),  0, Number_Invalid,  8 },
+    { wxT("0x11"), 17, Number_Ok,      16 },
 };
 
 void StringTestCase::ToLong()
@@ -644,11 +661,13 @@ void StringTestCase::ToLong()
         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
         //       should behave the same for our test data set:
 
-        CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToCLong(&l) );
+        CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
+                              wxString(ld.str).ToCLong(&l, ld.base) );
         if ( ld.IsOk() )
             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
 
-        CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToLong(&l) );
+        CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
+                              wxString(ld.str).ToLong(&l, ld.base) );
         if ( ld.IsOk() )
             CPPUNIT_ASSERT_EQUAL( ld.LValue(), l );
     }
@@ -678,11 +697,13 @@ void StringTestCase::ToULong()
         // NOTE: unless you're using some exotic locale, ToCLong and ToLong
         //       should behave the same for our test data set:
 
-        CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToCULong(&ul) );
+        CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
+                              wxString(ld.str).ToCULong(&ul, ld.base) );
         if ( ld.IsOk() )
             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
 
-        CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToULong(&ul) );
+        CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
+                              wxString(ld.str).ToULong(&ul, ld.base) );
         if ( ld.IsOk() )
             CPPUNIT_ASSERT_EQUAL( ld.ULValue(), ul );
     }
@@ -700,7 +721,8 @@ void StringTestCase::ToLongLong()
         if ( ld.flags & (Number_Long | Number_Unsigned) )
             continue;
 
-        CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToLongLong(&l) );
+        CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
+                              wxString(ld.str).ToLongLong(&l, ld.base) );
         if ( ld.IsOk() )
             CPPUNIT_ASSERT_EQUAL( ld.LLValue(), l );
     }
@@ -716,7 +738,8 @@ void StringTestCase::ToULongLong()
         if ( ld.flags & (Number_Long | Number_Signed) )
             continue;
 
-        CPPUNIT_ASSERT_EQUAL( ld.IsOk(), wxString(ld.str).ToULongLong(&ul) );
+        CPPUNIT_ASSERT_EQUAL( ld.IsOk(),
+                              wxString(ld.str).ToULongLong(&ul, ld.base) );
         if ( ld.IsOk() )
             CPPUNIT_ASSERT_EQUAL( ld.ULLValue(), ul );
     }