Yes, I have it. It's part of oscillator_functions.h (attached; it should
be included by oscillator_functions.cpp).
--
Martin Sjölund
On 2011-01-04 15:24, Christoph Höger wrote:
does your omc create C++ code containing "Modelica_Math_sin_rettype"? If
so, where is it defined?
Am Montag, den 03.01.2011, 19:06 +0100 schrieb Martin Sjölund:
Yes, there are special rules in the flattening that handles certain
external "C" functions in the standard library because they need to be
evaluated quickly (launching gcc to compile and load a dll just to
compute Modelica.Math.sin() is silly).
However, these all work for me (they are just declared external "C", so
nothing special should be needed to make them run):
$ omc a.mos
true
true
record SimulationResult
resultFile = "oscillator_res.plt",
simulationOptions = "startTime = 0.0, stopTime = 1.0,
numberOfIntervals = 500, tolerance = 1e-06, method = 'dassl',
fileNamePrefix = 'oscillator', storeInTemp = false, noClean = false,
options = '', outputFormat = 'plt'",
messages = "",
timeFrontend = 0.082646233,
timeBackend = 0.004297787,
timeSimCode = 0.001765213,
timeTemplates = 0.003413401,
timeCompile = 0.811047671,
timeSimulation = 0.020562325,
timeTotal = 0.923819948
end SimulationResult;
--
Martin Sjölund
On 2011-01-03 15:51, Christoph Höger wrote:
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addendum: The following model
model mathtest
parameter Real x = Modelica.Math.sin(1.0);
Real y;
equation
y = Modelica.Math.cos(time) + x;
end mathtest;
gives the following omc output:
class mathtest
parameter Real x = 0.841470984807897;
Real y;
equation
y = Modelica.Math.cos(time) + x;
end mathtest;
So the compiler was able to invoke sin(), even if the runtime system
does not know it?
Am 03.01.2011 15:34, schrieb Christoph Höger:
Thanks for the fast fix. The lookup problem is indeed solved now.
Unfortunately I get a C++ error now:
[choe...@eurybates oscillator]$ LC_ALL=C omc oscillator.mos
true
true
record SimulationResult
resultFile = "",
simulationOptions = "startTime = 0.0, stopTime = 10.0,
numberOfIntervals = 500, tolerance = 1e-06, method = 'dassl',
fileNamePrefix = 'oscillator', storeInTemp = false, noClean = false,
options = '', outputFormat = 'plt'",
messages = "Simulation failed for model: oscillator
Error: Error building simulator. Buildlog: g++ -I. -o oscillator
oscillator.cpp oscillator_functions.cpp -lsim -linteractive
-I"/opt/openmodelica//include/omc" -march=native -mfpmath=sse
-lsendData -lQtNetwork -lQtCore -lQtGui -lpthread
-L"/opt/openmodelica//lib/omc" -lc_runtime -lf2c oscillator_records.c
oscillator.cpp: In function 'int function_updateDependents()':
oscillator.cpp:918:3: error: 'Modelica_Math_sin_rettype' was not
declared in this scope
Since Modelica.Math.sin is a stdlib function, is there something I need
to do, to get it working?
Am 02.01.2011 16:48, schrieb Martin Sjölund:
This seems to be an issue with evaluation of parameters without
eq-bindings (it should look at start=binding and give a warning). It's
easy to fix it in the model, but thanks for reporting this; I'll look
into the compiler and see if I can make this work quickly.
sinevoltage1(freqHz=50,V=240); // works
--
Martin Sjölund
On 2010-12-29 13:20, Christoph Höger wrote:
Hi all,
the following code
model oscillator
Modelica.Electrical.Analog.Basic.Capacitor capacitor1;
Modelica.Electrical.Analog.Sources.SineVoltage sinevoltage1;
Modelica.Electrical.Analog.Basic.Inductor inductor1;
Modelica.Electrical.Analog.Basic.Ground ground1;
equation
connect(inductor1.n,ground1.p);
connect(capacitor1.p,inductor1.p);
connect(sinevoltage1.p,capacitor1.p);
connect(capacitor1.n,sinevoltage1.n);
connect(capacitor1.n,inductor1.n);
end oscillator;
throws a lookup error (sinevoltage1.freqHz, sineVoltage1.V) with omc
(current trunk) although the flattened output contains the lines:
parameter Real sinevoltage1.V(quantity = "ElectricPotential", unit =
"V", start = 1.0) "Amplitude of sine wave";
parameter Real sinevoltage1.phase(quantity = "Angle", unit = "rad",
displayUnit = "deg") = 0.0 "Phase of sine wave";
parameter Real sinevoltage1.freqHz(quantity = "Frequency", unit =
"Hz", start = 1.0) "Frequency of sine wave";
Any ideas how to circumvent?
best regards,
Christoph
- --
Christoph Höger
Technische Universität Berlin
Fakultät IV - Elektrotechnik und Informatik
Übersetzerbau und Programmiersprachen
Sekr. TEL12-2, Ernst-Reuter-Platz 7, 10587 Berlin
Tel.: +49 (30) 314-24890
E-Mail: [email protected]
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#ifndef oscillator__H
#define oscillator__H
#include "modelica.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#if defined(_MSC_VER)
#define DLLExport __declspec( dllexport )
#else
#define DLLExport /* nothing */
#endif
#include "simulation_runtime.h"
extern "C" {
#define Modelica_Math_sin_rettype_1 targ1
typedef struct Modelica_Math_sin_rettype_s
{
modelica_real targ1; /* y */
} Modelica_Math_sin_rettype;
Modelica_Math_sin_rettype _Modelica_Math_sin(modelica_real _u);
extern double sin(double _u);
#define Modelica_Math_asin_rettype_1 targ1
typedef struct Modelica_Math_asin_rettype_s
{
modelica_real targ1; /* y */
} Modelica_Math_asin_rettype;
Modelica_Math_asin_rettype _Modelica_Math_asin(modelica_real _u);
extern double asin(double _u);
}
#endif
