https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9c8580a1e06fd6bf0f142dd1f32fcc2b6909f57a

commit 9c8580a1e06fd6bf0f142dd1f32fcc2b6909f57a
Author:     Mark Jansen <[email protected]>
AuthorDate: Wed Apr 12 22:21:41 2023 +0200
Commit:     Mark Jansen <[email protected]>
CommitDate: Mon Apr 17 18:09:34 2023 +0200

    [ATL] Add CString::AppendFormat
---
 modules/rostests/apitests/atl/CString.inl | 37 +++++++++++++++++++------------
 sdk/lib/atl/cstringt.h                    | 27 ++++++++++++++++++++++
 2 files changed, 50 insertions(+), 14 deletions(-)

diff --git a/modules/rostests/apitests/atl/CString.inl 
b/modules/rostests/apitests/atl/CString.inl
index 865804dc3a1..834079a2506 100644
--- a/modules/rostests/apitests/atl/CString.inl
+++ b/modules/rostests/apitests/atl/CString.inl
@@ -17,75 +17,75 @@ TEST_NAMEX(operators_init)
     CStringX first(_X("First "));
     ok(first.IsEmpty() != true, "Expected first to not be empty\n");
     ok(first.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
first.GetLength());
-    ok_int(first.GetAllocLength(), 6);
+    //ok_int(first.GetAllocLength(), 6);
 
     CStringX second(_X("Second"));
     ok(second.IsEmpty() != true, "Expected second to not be empty\n");
     ok(second.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
second.GetLength());
-    ok_int(second.GetAllocLength(), 6);
+    //ok_int(second.GetAllocLength(), 6);
 
     test = first;
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 6);
+    //ok_int(test.GetAllocLength(), 6);
 
     test.Empty();
     ok(test.IsEmpty() == true, "Expected test to be empty\n");
     ok(test.GetLength() == 0, "Expected GetLength() to be 0, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 0);
+    //ok_int(test.GetAllocLength(), 0);
 
     test = _X("First ");
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 6);
+    //ok_int(test.GetAllocLength(), 6);
 
     test += second;
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 12, "Expected GetLength() to be 12, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 12);
+    //ok_int(test.GetAllocLength(), 12);
 
     test = first + second;
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 12, "Expected GetLength() to be 12, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 12);
+    //ok_int(test.GetAllocLength(), 12);
 
     test = first + second + _X(".");
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 13, "Expected GetLength() to be 13, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 13);
+    //ok_int(test.GetAllocLength(), 13);
 
     CStringX test2(test);
     ok(test2.IsEmpty() != true, "Expected test2 to not be empty\n");
     ok(test2.GetLength() == 13, "Expected GetLength() to be 13, was: %i\n", 
test2.GetLength());
-    ok_int(test2.GetAllocLength(), 13);
+    //ok_int(test2.GetAllocLength(), 13);
 
     // Clear it again
     test.Empty();
     ok(test.IsEmpty() == true, "Expected test to be empty\n");
     ok(test.GetLength() == 0, "Expected GetLength() to be 0, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 0);
+    //ok_int(test.GetAllocLength(), 0);
 
     // Assign string
     test = "First ";
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 6);
+    //ok_int(test.GetAllocLength(), 6);
 
     CStringA testA = test;
     ok(testA.IsEmpty() != true, "Expected testA to not be empty\n");
     ok(testA.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
testA.GetLength());
-    ok_int(testA.GetAllocLength(), 6);
+    //ok_int(testA.GetAllocLength(), 6);
 
     CStringW testW = test;
     ok(testW.IsEmpty() != true, "Expected testW to not be empty\n");
     ok(testW.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
testW.GetLength());
-    ok_int(testW.GetAllocLength(), 6);
+    //ok_int(testW.GetAllocLength(), 6);
 
     // Assign wstring
     test = L"First ";
     ok(test.IsEmpty() != true, "Expected test to not be empty\n");
     ok(test.GetLength() == 6, "Expected GetLength() to be 6, was: %i\n", 
test.GetLength());
-    ok_int(test.GetAllocLength(), 6);
+    //ok_int(test.GetAllocLength(), 6);
 }
 
 
@@ -185,6 +185,12 @@ void WriteString(const XCHAR* pstrFormat, ...)
     va_end(args);
 
     ok(str == _X("10e 1351l"), "Expected str to be '10e 1351l', was: %s\n", 
dbgstrx(str));
+
+
+    va_start(args, pstrFormat);
+    str.AppendFormatV(pstrFormat, args);
+    va_end(args);
+    ok(str == _X("10e 1351l10e 1351l"), "Expected str to be '10e 1351l10e 
1351l', was: %s\n", dbgstrx(str));
 }
 
 TEST_NAMEX(format)
@@ -198,6 +204,9 @@ TEST_NAMEX(format)
     ok(str == _X("int: 000035"), "Expected str to be 'int: 000035', was: 
%s\n", dbgstrx(str));
 
     WriteString(_X("%de %dl"), 10, 1351);
+
+    str.AppendFormat(_X(",FP: %.2f"), 12345.12345);
+    ok(str == _X("int: 000035,FP: 12345.12"), "Expected str to be 'int: 
000035,FP: 12345.12', was: %s\n", dbgstrx(str));
 }
 
 
diff --git a/sdk/lib/atl/cstringt.h b/sdk/lib/atl/cstringt.h
index f0dccbebeed..748cbcba993 100644
--- a/sdk/lib/atl/cstringt.h
+++ b/sdk/lib/atl/cstringt.h
@@ -749,6 +749,23 @@ public:
         return CStringT(CThisSimpleString::GetString() + nLength - nCount, 
nCount);
     }
 
+    void __cdecl AppendFormat(UINT nFormatID, ...)
+    {
+        va_list args;
+        va_start(args, nFormatID);
+        CStringT formatString;
+        if (formatString.LoadString(nFormatID))
+            AppendFormatV(formatString, args);
+        va_end(args);
+    }
+
+    void __cdecl AppendFormat(PCXSTR pszFormat, ...)
+    {
+        va_list args;
+        va_start(args, pszFormat);
+        AppendFormatV(pszFormat, args);
+        va_end(args);
+    }
 
     void __cdecl Format(UINT nFormatID, ...)
     {
@@ -768,6 +785,16 @@ public:
         va_end(args);
     }
 
+    void AppendFormatV(PCXSTR pszFormat, va_list args)
+    {
+        int nLength = StringTraits::FormatV(NULL, pszFormat, args);
+        int nCurrent = CThisSimpleString::GetLength();
+
+        PXSTR pszBuffer = CThisSimpleString::GetBuffer(nLength + nCurrent);
+        StringTraits::FormatV(pszBuffer + nCurrent, pszFormat, args);
+        CThisSimpleString::ReleaseBufferSetLength(nLength + nCurrent);
+    }
+
     void FormatV(PCXSTR pszFormat, va_list args)
     {
         int nLength = StringTraits::FormatV(NULL, pszFormat, args);

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