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-rw-r--r--basic/source/comp/exprnode.cxx10
-rw-r--r--basic/source/runtime/methods1.cxx4
-rw-r--r--include/o3tl/temporary.hxx22
-rw-r--r--o3tl/CompilerTest_o3tl_temporary.mk16
-rw-r--r--o3tl/Module_o3tl.mk1
-rw-r--r--o3tl/qa/compile-temporary.cxx25
-rw-r--r--reportdesign/source/filter/xml/xmlControlProperty.cxx4
-rw-r--r--sal/rtl/random.cxx3
-rw-r--r--sc/source/filter/excel/xepivotxml.cxx4
-rw-r--r--scaddins/source/analysis/financial.cxx4
-rw-r--r--slideshow/source/engine/transitions/snakewipe.cxx7
-rw-r--r--sw/source/core/bastyp/calc.cxx5
-rw-r--r--sw/source/core/fields/flddat.cxx4
-rw-r--r--writerfilter/source/dmapper/DomainMapper_Impl.cxx5
-rw-r--r--xmloff/source/forms/propertyimport.cxx5
15 files changed, 90 insertions, 29 deletions
diff --git a/basic/source/comp/exprnode.cxx b/basic/source/comp/exprnode.cxx
index 8d6db9bd88d8..aa8f69828c37 100644
--- a/basic/source/comp/exprnode.cxx
+++ b/basic/source/comp/exprnode.cxx
@@ -21,6 +21,7 @@
#include <math.h>
#include <algorithm>
+#include <o3tl/temporary.hxx>
#include <rtl/math.hxx>
#include <codegen.hxx>
#include <parser.hxx>
@@ -152,8 +153,7 @@ void SbiExprNode::ConvertToIntConstIfPossible()
{
if( eType >= SbxINTEGER && eType <= SbxDOUBLE )
{
- double n;
- if( nVal >= SbxMININT && nVal <= SbxMAXINT && modf( nVal, &n ) == 0 )
+ if( nVal >= SbxMININT && nVal <= SbxMAXINT && modf( nVal, &o3tl::temporary(double()) ) == 0 )
{
eType = SbxINTEGER;
}
@@ -220,9 +220,8 @@ void SbiExprNode::FoldConstants(SbiParser* pParser)
// Potentially convolve in INTEGER (because of better opcode)?
if( eType == SbxSINGLE || eType == SbxDOUBLE )
{
- double x;
if( nVal >= SbxMINLNG && nVal <= SbxMAXLNG
- && !modf( nVal, &x ) )
+ && !modf( nVal, &o3tl::temporary(double()) ) )
eType = SbxLONG;
}
if( eType == SbxLONG && nVal >= SbxMININT && nVal <= SbxMAXINT )
@@ -463,9 +462,8 @@ void SbiExprNode::FoldConstantsUnaryNode(SbiParser* pParser)
// Potentially convolve in INTEGER (because of better opcode)?
if( eType == SbxSINGLE || eType == SbxDOUBLE )
{
- double x;
if( nVal >= SbxMINLNG && nVal <= SbxMAXLNG
- && !modf( nVal, &x ) )
+ && !modf( nVal, &o3tl::temporary(double()) ) )
eType = SbxLONG;
}
if( eType == SbxLONG && nVal >= SbxMININT && nVal <= SbxMAXINT )
diff --git a/basic/source/runtime/methods1.cxx b/basic/source/runtime/methods1.cxx
index 3a1964783ff5..8c8c3dcbcd7d 100644
--- a/basic/source/runtime/methods1.cxx
+++ b/basic/source/runtime/methods1.cxx
@@ -35,6 +35,7 @@
#include <svl/zforlist.hxx>
#include <tools/urlobj.hxx>
#include <tools/fract.hxx>
+#include <o3tl/temporary.hxx>
#include <osl/file.hxx>
#include <vcl/jobset.hxx>
#include <sbobjmod.hxx>
@@ -2354,8 +2355,7 @@ void SbRtl_FormatDateTime(StarBASIC *, SbxArray & rPar, bool)
// ShortTime: Display a time using the 24-hour format (hh:mm).
// 11:24
case 4:
- double n;
- double dTime = modf( dDate, &n );
+ double dTime = modf( dDate, &o3tl::temporary(double()) );
pSbxVar->PutDate( dTime );
if( nNamedFormat == 3 )
{
diff --git a/include/o3tl/temporary.hxx b/include/o3tl/temporary.hxx
new file mode 100644
index 000000000000..476e934cb44a
--- /dev/null
+++ b/include/o3tl/temporary.hxx
@@ -0,0 +1,22 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+namespace o3tl
+{
+// Cast an rvalue to an lvalue. Can be useful if a function parameter is a pointer/reference to T,
+// and some call site doesn't need the value beyond the call itself (e.g., in a call like
+// std::modf(x, &o3tl::temporary(double())) to obtain the fractional part of x, ignoring the
+// integral part).
+template <typename T> constexpr T& temporary(T&& x) { return x; }
+template <typename T> constexpr T& temporary(T&) = delete;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/o3tl/CompilerTest_o3tl_temporary.mk b/o3tl/CompilerTest_o3tl_temporary.mk
new file mode 100644
index 000000000000..fe8a830e03b0
--- /dev/null
+++ b/o3tl/CompilerTest_o3tl_temporary.mk
@@ -0,0 +1,16 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t; fill-column: 100 -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_CompilerTest_CompilerTest,o3tl_temporary))
+
+$(eval $(call gb_CompilerTest_add_exception_objects,o3tl_temporary, \
+ o3tl/qa/compile-temporary \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/o3tl/Module_o3tl.mk b/o3tl/Module_o3tl.mk
index b692ca5de633..779b37ef56af 100644
--- a/o3tl/Module_o3tl.mk
+++ b/o3tl/Module_o3tl.mk
@@ -23,6 +23,7 @@ $(eval $(call gb_Module_add_targets,o3tl,\
$(eval $(call gb_Module_add_check_targets,o3tl,\
CppunitTest_o3tl_tests \
+ $(if $(COM_IS_CLANG),CompilerTest_o3tl_temporary) \
))
# vim: set noet sw=4:
diff --git a/o3tl/qa/compile-temporary.cxx b/o3tl/qa/compile-temporary.cxx
new file mode 100644
index 000000000000..1d8d84bd5fb5
--- /dev/null
+++ b/o3tl/qa/compile-temporary.cxx
@@ -0,0 +1,25 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+#include <o3tl/temporary.hxx>
+
+void f(int*);
+
+int g();
+
+void h(int n)
+{
+ f(&o3tl::temporary(int()));
+ f(&o3tl::temporary(g()));
+ f(&o3tl::temporary(n)); // expected-error {{}} expected-note@o3tl/temporary.hxx:* 0+ {{}}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/reportdesign/source/filter/xml/xmlControlProperty.cxx b/reportdesign/source/filter/xml/xmlControlProperty.cxx
index e14b86e0e6dc..a4f0741448b3 100644
--- a/reportdesign/source/filter/xml/xmlControlProperty.cxx
+++ b/reportdesign/source/filter/xml/xmlControlProperty.cxx
@@ -24,6 +24,7 @@
#include "xmlControlProperty.hxx"
+#include <o3tl/temporary.hxx>
#include <rtl/strbuf.hxx>
#include <sax/tools/converter.hxx>
#include "xmlfilter.hxx"
@@ -272,8 +273,7 @@ Any OXMLControlProperty::convertString(const css::uno::Type& _rExpectedType, con
{
case TYPE_DATE:
{
- double dummy;
- OSL_ENSURE(std::modf(nValue, &dummy) == 0,
+ OSL_ENSURE(std::modf(nValue, &o3tl::temporary(double())) == 0,
"OPropertyImport::convertString: a Date value with a fractional part?");
(void)dummy;
aReturn <<= implGetDate(nValue);
diff --git a/sal/rtl/random.cxx b/sal/rtl/random.cxx
index c9269abb837b..224a345a3094 100644
--- a/sal/rtl/random.cxx
+++ b/sal/rtl/random.cxx
@@ -22,6 +22,7 @@
#include <cmath>
#include <sal/types.h>
+#include <o3tl/temporary.hxx>
#include <osl/thread.h>
#include <osl/thread.hxx>
#include <osl/time.h>
@@ -85,7 +86,7 @@ static double data(RandomData_Impl *pImpl)
(static_cast<double>(pImpl->m_nY) / 30269.0) +
(static_cast<double>(pImpl->m_nZ) / 30307.0) );
- return std::modf(random, &random);
+ return std::modf(random, &o3tl::temporary(double()));
}
static bool initPool(RandomPool_Impl *pImpl)
diff --git a/sc/source/filter/excel/xepivotxml.cxx b/sc/source/filter/excel/xepivotxml.cxx
index ffa2eb724f84..004f9938a72a 100644
--- a/sc/source/filter/excel/xepivotxml.cxx
+++ b/sc/source/filter/excel/xepivotxml.cxx
@@ -15,6 +15,7 @@
#include <document.hxx>
#include <generalfunction.hxx>
+#include <o3tl/temporary.hxx>
#include <oox/export/utils.hxx>
#include <oox/token/namespaces.hxx>
#include <sax/tools/converter.hxx>
@@ -263,7 +264,6 @@ void XclExpXmlPivotCaches::SavePivotCacheXml( XclExpXmlStream& rStrm, const Entr
double fMin = std::numeric_limits<double>::infinity(), fMax = -std::numeric_limits<double>::infinity();
bool isValueInteger = true;
bool isContainsDate = rCache.IsDateDimension(i);
- double intpart;
for (; it != itEnd; ++it)
{
ScDPItemData::Type eType = it->GetType();
@@ -275,7 +275,7 @@ void XclExpXmlPivotCaches::SavePivotCacheXml( XclExpXmlStream& rStrm, const Entr
fMax = std::max(fMax, fVal);
// Check if all values are integers
- if (isValueInteger && (modf(fVal, &intpart) != 0.0))
+ if (isValueInteger && (modf(fVal, &o3tl::temporary(double())) != 0.0))
{
isValueInteger = false;
}
diff --git a/scaddins/source/analysis/financial.cxx b/scaddins/source/analysis/financial.cxx
index ccbf0cd02b69..0b66bd873c96 100644
--- a/scaddins/source/analysis/financial.cxx
+++ b/scaddins/source/analysis/financial.cxx
@@ -19,6 +19,7 @@
#include "analysis.hxx"
#include "analysishelper.hxx"
+#include <o3tl/temporary.hxx>
#include <rtl/math.hxx>
using namespace sca::analysis;
@@ -366,8 +367,7 @@ double SAL_CALL AnalysisAddIn::getTbillprice( const css::uno::Reference< css::be
double fFraction = GetYearFrac( xOpt, nSettle, nMat, 0 ); // method: USA 30/360
- double fDummy;
- if( modf( fFraction, &fDummy ) == 0.0 )
+ if( modf( fFraction, &o3tl::temporary(double()) ) == 0.0 )
throw css::lang::IllegalArgumentException();
double fRet = 100.0 * ( 1.0 - fDisc * fFraction );
diff --git a/slideshow/source/engine/transitions/snakewipe.cxx b/slideshow/source/engine/transitions/snakewipe.cxx
index b484f36cb8d7..2fd53e121494 100644
--- a/slideshow/source/engine/transitions/snakewipe.cxx
+++ b/slideshow/source/engine/transitions/snakewipe.cxx
@@ -21,6 +21,7 @@
#include <cmath>
+#include <o3tl/temporary.hxx>
#include <osl/diagnose.h>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/point/b2dpoint.hxx>
@@ -102,8 +103,7 @@ SnakeWipe::SnakeWipe( sal_Int32 nElements, bool diagonal, bool flipOnYAxis )
res.append(poly);
}
const double a = (M_SQRT1_2 / m_sqrtElements);
- double dummy;
- const double d = std::modf(sqrtArea2, &dummy);
+ const double d = std::modf(sqrtArea2, &o3tl::temporary(double()));
const double len = (t * M_SQRT2 * d);
const double height = ::basegfx::pruneScaleValue( M_SQRT1_2 / m_sqrtElements );
poly.clear();
@@ -147,8 +147,7 @@ SnakeWipe::SnakeWipe( sal_Int32 nElements, bool diagonal, bool flipOnYAxis )
res.append(poly);
}
const double a = (M_SQRT1_2 / m_sqrtElements);
- double dummy;
- const double d = std::modf(sqrtArea2, &dummy);
+ const double d = std::modf(sqrtArea2, &o3tl::temporary(double()));
const double len = ((1.0 - t) * M_SQRT2 * d);
const double height = ::basegfx::pruneScaleValue( M_SQRT1_2 / m_sqrtElements );
poly.clear();
diff --git a/sw/source/core/bastyp/calc.cxx b/sw/source/core/bastyp/calc.cxx
index c1cbfdfb841d..30a1ca83a5ab 100644
--- a/sw/source/core/bastyp/calc.cxx
+++ b/sw/source/core/bastyp/calc.cxx
@@ -38,6 +38,7 @@
#include <editeng/unolingu.hxx>
#include <expfld.hxx>
#include <hintids.hxx>
+#include <o3tl/temporary.hxx>
#include <osl/diagnose.hxx>
#include <rtl/math.hxx>
#include <shellres.hxx>
@@ -1195,8 +1196,8 @@ SwSbxValue SwCalc::Prim()
GetToken();
double right = Prim().GetDouble();
- double fraction, integer;
- fraction = modf( right, &integer );
+ double fraction;
+ fraction = modf( right, &o3tl::temporary(double()) );
if( ( dleft < 0.0 && 0.0 != fraction ) ||
( 0.0 == dleft && right < 0.0 ) )
{
diff --git a/sw/source/core/fields/flddat.cxx b/sw/source/core/fields/flddat.cxx
index aac0b4def6aa..6cb2f930b492 100644
--- a/sw/source/core/fields/flddat.cxx
+++ b/sw/source/core/fields/flddat.cxx
@@ -20,6 +20,7 @@
#include <sal/config.h>
#include <o3tl/any.hxx>
+#include <o3tl/temporary.hxx>
#include <tools/datetime.hxx>
#include <svl/zforlist.hxx>
#include <com/sun/star/util/DateTime.hpp>
@@ -150,8 +151,7 @@ Date SwDateTimeField::GetDate() const
tools::Time SwDateTimeField::GetTime() const
{
- double fDummy;
- double fFract = modf(GetValue(), &fDummy);
+ double fFract = modf(GetValue(), &o3tl::temporary(double()));
DateTime aDT( DateTime::EMPTY );
aDT.AddTime(fFract);
return static_cast<tools::Time>(aDT);
diff --git a/writerfilter/source/dmapper/DomainMapper_Impl.cxx b/writerfilter/source/dmapper/DomainMapper_Impl.cxx
index 7194879807fd..409c7083ad7e 100644
--- a/writerfilter/source/dmapper/DomainMapper_Impl.cxx
+++ b/writerfilter/source/dmapper/DomainMapper_Impl.cxx
@@ -70,7 +70,7 @@
#include <com/sun/star/text/XTextColumns.hpp>
#include <com/sun/star/awt/CharSet.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
-
+#include <o3tl/temporary.hxx>
#include <oox/mathml/import.hxx>
#include <rtl/uri.hxx>
#include "GraphicHelpers.hxx"
@@ -4587,8 +4587,7 @@ static util::DateTime lcl_dateTimeFromSerial(const double& dSerial)
DateTime d(Date(30, 12, 1899));
d.AddDays( static_cast<sal_Int32>(dSerial) );
- double dummy;
- double frac = std::modf(dSerial, &dummy);
+ double frac = std::modf(dSerial, &o3tl::temporary(double()));
sal_uInt32 seconds = frac * secondsPerDay;
util::DateTime date;
diff --git a/xmloff/source/forms/propertyimport.cxx b/xmloff/source/forms/propertyimport.cxx
index 3b15dcd69f40..d133e01a1d63 100644
--- a/xmloff/source/forms/propertyimport.cxx
+++ b/xmloff/source/forms/propertyimport.cxx
@@ -28,6 +28,7 @@
#include <xmloff/xmlimp.hxx>
#include <xmloff/xmluconv.hxx>
#include <xmloff/nmspmap.hxx>
+#include <o3tl/temporary.hxx>
#include <osl/diagnose.h>
#include <comphelper/extract.hxx>
#include "callbacks.hxx"
@@ -186,9 +187,7 @@ Any PropertyConversion::convertString( const css::uno::Type& _rExpectedType,
{
case TYPE_DATE:
{
- double dummy;
- (void) dummy; // avoid warning C4101 with some over-eager MSVC
- OSL_ENSURE(std::modf(nValue, &dummy) == 0,
+ OSL_ENSURE(std::modf(nValue, &o3tl::temporary(double())) == 0,
"PropertyConversion::convertString: a Date value with a fractional part?");
aReturn <<= lcl_getDate(nValue);
}
generated by cgit (git 2.34.1) at 2025-01-27 12:27:10 +0000