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[4diac-dev] Error compiling EXPT function
|
Hello!
There is a problem with EXPT function if it is used with REAL variable
and a literal value (see attached test FB)
IDE: 1.14
FORTE: 1.14
Is this a known bug? As a workaround it is possible to use an internal
variable instead of the literal value.
BR
Zwax
<?xml version="1.0" encoding="UTF-8"?>
<FBType Name="ExptTest" Comment="Basic FB with empty ECC">
<Identification Standard="61499-2">
</Identification>
<VersionInfo Version="1.0" Author="zwax" Date="2021-10-01">
</VersionInfo>
<InterfaceList>
<EventInputs>
<Event Name="REQ" Type="Event" Comment="">
<With Var="INVAL"/>
</Event>
</EventInputs>
<EventOutputs>
<Event Name="CNF" Type="Event" Comment="">
<With Var="OUTVAL"/>
</Event>
</EventOutputs>
<InputVars>
<VarDeclaration Name="INVAL" Type="REAL" Comment="" InitialValue="0"/>
</InputVars>
<OutputVars>
<VarDeclaration Name="OUTVAL" Type="REAL" Comment="" InitialValue="0"/>
</OutputVars>
</InterfaceList>
<BasicFB>
<InternalVars>
<VarDeclaration Name="EXP_VAL" Type="REAL" Comment="" InitialValue="0.42"/>
</InternalVars>
<ECC>
<ECState Name="START" Comment="Initial State" x="550.0" y="425.0">
</ECState>
<ECState Name="REQ" Comment="" x="500.0" y="875.0">
<ECAction Algorithm="TestExptAlg" Output="CNF"/>
</ECState>
<ECTransition Source="START" Destination="REQ" Condition="REQ" Comment="" x="850.0" y="743.75"/>
<ECTransition Source="REQ" Destination="START" Condition="1" Comment="" x="306.25" y="700.0"/>
</ECC>
<Algorithm Name="TestExptAlg" Comment="">
<ST><![CDATA[OUTVAL := EXPT(INVAL, 0.42);]]></ST>
</Algorithm>
</BasicFB>
</FBType>
/data/4diac/forte-1.14.0/src/core/iec61131_functions.h: In instantiation of ‘const T EXPT(const T&, const U&) [with T = CIEC_REAL; U = double]’:
/data/4diac/forte-1.14.0/src/modules/meo/ExptTest.cpp:56:38: required from here
/data/4diac/forte-1.14.0/src/core/iec61131_functions.h:406:49: error: call of overloaded ‘pow(const CIEC_REAL&, const double&)’ is ambiguous
406 | return static_cast<typename T::TValueType>(pow(pa_roIN1, pa_roIN2));
| ~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/features.h:461,
from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
from /usr/include/stdint.h:26,
from /usr/lib/gcc/x86_64-linux-gnu/9/include/stdint.h:9,
from /data/4diac/forte-1.14.0/src/arch/datatype.h:20,
from /data/4diac/forte-1.14.0/bin/posix/forte_config.h:17,
from /data/4diac/forte-1.14.0/src/core/funcbloc.h:20,
from /data/4diac/forte-1.14.0/src/core/basicfb.h:17,
from /data/4diac/forte-1.14.0/src/modules/meo/ExptTest.h:15,
from /data/4diac/forte-1.14.0/src/modules/meo/ExptTest.cpp:12:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:140:1: note: candidate: ‘double pow(double, double)’
140 | __MATHCALL_VEC (pow,, (_Mdouble_ __x, _Mdouble_ __y));
| ^~~~~~~~~~~~~~
In file included from /usr/include/c++/9/math.h:36,
from /data/4diac/forte-1.14.0/src/core/datatypes/convert/convert_functions.h:45,
from /data/4diac/forte-1.14.0/src/core/iec61131_functions.h:20,
from /data/4diac/forte-1.14.0/src/core/funcbloc.h:27,
from /data/4diac/forte-1.14.0/src/core/basicfb.h:17,
from /data/4diac/forte-1.14.0/src/modules/meo/ExptTest.h:15,
from /data/4diac/forte-1.14.0/src/modules/meo/ExptTest.cpp:12:
/usr/include/c++/9/cmath:392:3: note: candidate: ‘constexpr long double std::pow(long double, long double)’
392 | pow(long double __x, long double __y)
| ^~~
/usr/include/c++/9/cmath:388:3: note: candidate: ‘constexpr float std::pow(float, float)’
388 | pow(float __x, float __y)
| ^~~
