I have a quite simple Swig Module for Demo purposes but can't get the wrapper/stub to get compiled.
Swigtest.h:
#pragma once
class Swigtest {
public:
Swigtest() {};
int func1(int param1);
};
Swigtest.cpp
#include "Swigtest.h"
int Swigtest::func1(int param1)
{
return param1 + 1;
}
Swigtest.i
%module Swigtest
%{
#include "Swigtest.h"
%}
%include "Swigtest.h"
The wrapper ist generated with swig.exe -c++ -perl5 Swigtest.i and then the compilation of the wrapper Swigtest_wrap.cxx fails with the following first error:
[path_to_perl_lib]\lib\core\win32.h(371): error C2061: syntax error: identifier 'STRLEN'
I'm using VisualStudio 2015 Toolset (acutally running on VS17) with Target Platform Version 8.1 and Swigwin 3.0.12.
Thank's for your help!
Related
I want to create some trivial S-function with legacy_code for my MexTest.c:
legacy_code('compile', specs, compilerOptions)
There are 2 macros (TEST_DEF1 and TEST_DEF2), which I want to put into compilerOptions. The 2 macros are used in the function TestFnc().
But somehow, the TestFnc() does not see the 2 macros defined in compilerOptions before...
MexTest.c:
#include "MexTest.h"
void TestFnc(double *p_u, double *p_y)
{
*p_y = *p_u + 1;
#ifndef TEST_DEF1
#error "undefined: TEST_DEF1"
#endif
#ifndef TEST_DEF2
#error "undefined: TEST_DEF2"
#endif
}
MexTest.h:
#ifndef MEXTEST_H_
#define MEXTEST_H_
void TestFnc(double *p_u, double *p_y);
#endif
legacy_code tool
specs = legacy_code('initialize');
specs.HeaderFiles = {'MexTest.h'};
specs.SourceFiles = {'MexTest.c'};
specs.SFunctionName = 'Test_SFunc_gen';
specs.OutputFcnSpec = 'void TestFnc(double u1[1], double y1[1])';
%% Compile C-MEX-s-function
legacy_code('sfcn_cmex_generate', specs);
legacy_code('generate_for_sim',specs);
legacy_code('compile', specs, {'-DTEST_DEF1', '-DTEST_DEF2'});
Mex Build Errors:
### Start Compiling Test_SFunc_gen
mex('-IC:\Users\xxxx\Documents\', '-c', '-outdir', 'C:\Users\xxxx\AppData\Local\Temp\tp05e00c12_2732_4dab_a0f8_f30bd05992f8', 'C:\Users\xxxx\Documents\MexTest.c')
Building with 'MinGW64 Compiler (C)'.
Error using mex
C:\Users\xxxx\Documents\MexTest.c: In function 'TestFnc':
C:\Users\xxxx\Documents\MexTest.c:8:10: error: #error "undefined: TEST_DEF1"
#error "undefined: TEST_DEF1"
C:\Users\xxxx\Documents\MexTest.c:12:10: error: #error "undefined: TEST_DEF2"
#error "undefined: TEST_DEF2"
How could I use the -D option correctly for my case?
(Matlab version 2021a)
How would one approach adding support for https://github.com/tianocore/edk2-libc, say I want to include stdio and use printf in my edk2 application? I followed StdLib/Readme.txt, and am able to successfully build examples in the AppPkg, however, when I try to add StdLib to my project I get errors like these:
LibString.lib(Searching.obj) : error LNK2005: strspn already defined in LibString.lib(Searching.obj)
LibCtype.lib(CClass.obj) : error LNK2005: isspace already defined in LibCtype.lib(CClass.obj)
(...)
LibC.lib(Main.obj) : error LNK2001: unresolved external symbol main
I do have the boilerplate (!include StdLib/StdLib.inc) added to my dsc file and in inf, I have StdLib.dec added to Packages and LibC and LibStdio added to LibraryClasses. I am using VS2017 toolchain for compilation and am using edk2-stable202108 release.
I was able to achieve this using below configuration for Hello Application of AppPkg.
Hello.inf
[Defines]
INF_VERSION = 0x00010006
BASE_NAME = Hello
FILE_GUID = a912f198-7f0e-4803-b908-b757b806ec83
MODULE_TYPE = UEFI_APPLICATION
VERSION_STRING = 0.1
ENTRY_POINT = ShellCEntryLib
#
# VALID_ARCHITECTURES = IA32 X64
#
[Sources]
Hello.c
[Packages]
MdePkg/MdePkg.dec
ShellPkg/ShellPkg.dec
StdLib/StdLib.dec
[LibraryClasses]
UefiLib
ShellCEntryLib
BaseLib
BaseMemoryLib
MemoryAllocationLib
LibStdLib
LibStdio
LibString
DevConsole
Hello.c
#include <Uefi.h>
#include <Library/UefiLib.h>
#include <Library/ShellCEntryLib.h>
#include <stdio.h>
int
main (
IN int Argc,
IN char **Argv
)
{
printf("Hello, world!\n");
return 0;
}
What I have understood is that LibC has ShellAppMain() defined in it which internally calls extern main(). So You need to provide definition of main() in your source just like I did in Hello.c
I'm trying to set a connection to postgre database, but having linker errors.
.pro file:
QT -= gui
CONFIG += c++11 console
CONFIG -= app_bundle
CONFIG += sql
DEFINES += QT_DEPRECATED_WARNINGS
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
main.cpp
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
unix|win32: LIBS += -L$$PWD/../../PostgreSQL/12/lib/ -llibpq
INCLUDEPATH += $$PWD/../../PostgreSQL/12/include
DEPENDPATH += $$PWD/../../PostgreSQL/12/include
win32:!win32-g++: PRE_TARGETDEPS += $$PWD/../../PostgreSQL/12/lib/libpq.lib
else:unix|win32-g++: PRE_TARGETDEPS += $$PWD/../../PostgreSQL/12/lib/liblibpq.a
.cpp file:
#include <QCoreApplication>
#include <QtSql/QSqlDatabase>
#include <QtSql/QSql>
#include <QtSql/QSqlDriver>
#include <QTextStream>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QSqlDatabase mDB=QSqlDatabase::addDatabase("QPSQL");
return a.exec();
}
It's just that. I'm not even trying to connect yet.
Errors are:
main.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl QSqlDatabase::~QSqlDatabase(void)" (__imp_??1QSqlDatabase##QEAA#XZ) referenced in function main
main.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: static class QSqlDatabase __cdecl QSqlDatabase::addDatabase(class QString const &,class QString const &)" (__imp_?addDatabase#QSqlDatabase##SA?AV1#AEBVQString##0#Z) referenced in function main
main.obj:-1: error: LNK2001: unresolved external symbol "__declspec(dllimport) public: static char const * const QSqlDatabase::defaultConnection" (__imp_?defaultConnection#QSqlDatabase##2PEBDEB)
Postge is 64bit for Windows, compiler chosen for this application is also 64 MSVC2019 64bit. Please help.
Problem was in .pro file. It should be:
QT += sql
and not:
CONFIG += sql
Trying to compile a very simple program for testing wiringpi's library for the hd44780 lcd controller:
#include <iostream>
#include <wiringPi.h>
#include <lcd.h>
...
int main()
{
init_wiringpi;
fd = lcdInit(2, 16, 4, 11,10 , 0,1,2,3,0,0,0,0) ;
...
return = 0;
}
Build Messages
LCD_first.cpp - undefined reference to `lcdInit'
LCD_first.cpp - undefined reference to `lcdPosition'
LCD_first.cpp - undefined reference to `lcdPuts'
Ok i just had to add lcd.o to the linked libraries list in Code::Blocks (settings/compiler/Linker settings/Link libraries >> /home/pi/wiringPi/devLib/lcd.o).
I've written simple program.
Here a code:
#include <iostream>
#include <stdio.h>
#include <D:\Program Files\PostgreSQL\8.4\include\libpq-fe.h>
#include <string>
using namespace std;
int main()
{
PGconn *conn;
PGresult *res;
int rec_count;
int row;
int col;
cout << "ble ble: " << 8 << endl;
conn = PQconnectdb("dbname=db_pm host=localhost user=postgres password=postgres");
if (PQstatus(conn) == CONNECTION_BAD) {
puts("We were unable to connect to the database");
exit(0);
}
}
I'm trying to connect with PostgreSQL.
I compile this code with following command:
gcc -I/"d:\Program Files\PostgreSQL\" -L/"d:\Program Files\PostgreSQL\8.4\lib\" -lpq -o firstcpp.o firstcpp.cpp
This command is from following site:
http://www.mkyong.com/database/how-to-building-postgresql-libpq-programs/
And when I compile it I get following error:
/cygnus/cygwin-b20/H-i586-cygwin32/i586-cygwin32/bin/ld: cannot open -lpq: No such file or directory
collect2: ld returned 1 exit status
Does anyone help me?
Difek
You can try using forward slashes instead of backward slashes. And I have no idea about the first forward slash. Isn't it meant to be inside the quotes ? Eg -I"/d:/Program Files/PostgreSQL/"
Anyway, if you are using the gcc from cygwin, you could also try
-I"/cygdrive/d/Program Files/PostgreSQL"
And I'd do the same with that include (libpq-fe) - though apparently that is working, the error is in the linker.