System Workbench for STM32

Hi Julien,

CubeMX generates a C project, not a C++ project, as the HAL code is fully writtent, and tested, in C.

To compile C++ code, you must convert your C project to a C++ project. You just have to use the project >> Convert to C++ project converter and it should work seamlessly.

The only thing is that you must first check that your IDE is up-to-date, by Help >> Check for Updates... as a small bug on C++ compile options was corrected recently

Bernard

Hello,

I am fighting with the same issues and my IDE SW4STM32 and Cube softawres are up to date.

I switched the project to C++, add the missing includes to G++ setting and change some linker settings.

Now when I compile, it look to call only yhe GCC compiler, not G++ and at the end I have an error that say : unknown type name 'class'.

Thnaks.

Philippe

same for me..
(error: unknown type name 'class')

latest eclipse, latest tools and latest libs, everything up to date.. i also renamed main.c to main.cpp. Somehow the .cpp files are not being compiled by the cpp compiler in my guess..

does someone knows any possible workaround? a thousand thanks in advance

-I"D:/BACKUP/BACKUP3/willianma/Documents/stm32projects/FreeRTOSLwIPt4dhcp2eclipseN01/Drivers/CMSIS/Device/ST/STM32F4xx/Include" -I"D:/BACKUP/BACKUP3/willianma/Documents/stm32projects/FreeRTOSLwIPt4dhcp2eclipseN01/Inc" -Os -g3 -Wall -fmessage-length=0 -ffunction-sections -c -fmessage-length=0 -MMD -MP -MF"Src/freertos.d" -MT"Src/freertos.o" -o "Src/freertos.o" "../Src/freertos.c"
In file included from ../Src/freertos.c:41:0:
D:/BACKUP/BACKUP3/willianma/Documents/stm32projects/FreeRTOSLwIPt4dhcp2eclipseN01/Inc/TestCppClass.h:10:1: error: unknown type name 'class'
class TestCppClass {

make: *** Src/freertos.o Error 1

tryed the simplest class as below:

/*
* TestCppClass.h
*
* Created on: Mar 31, 2016
* Author: willi
*/

1. ifndef _TESTCPPCLASS_H_
2. define _TESTCPPCLASS_H_

class TestCppClass {
public:

TestCppClass();//constructor
virtual ~TestCppClass();//destructor
void setLenght(int len);
int getLenght(void);

private:
int lenght;
};

1. endif /*_TESTCPPCLASS_H_ */

/*
* TestCppClass.cpp
*
* Created on: Mar 31, 2016
* Author: willi
*/

1. include "TestCppClass.h"

TestCppClass::TestCppClass() {
// TODO Auto-generated constructor stub
lenght=0;
}

TestCppClass::~TestCppClass() {
// TODO Auto-generated destructor stub
}

void TestCppClass::setLenght(int len){
lenght = len;
}
int TestCppClass::getLenght(){
return this->lenght;
}

Eclipse IDE for C/C++ Developers
Version: Neon.3 Release (4.6.3)
Build id: 20170314-1500

System Workbench for STM32 - C/C++ Debugging Tools for MCU
Version: 2.3.1.201811131241

In menu "Project" do not "Convert To c++"

If rename main.c to main.cpp i have error:
/startup/startup_stm32f303xc.s:111: undefined reference to `main'
Src/stm32f3xx_it.o: In function `DMA1_Channel3_IRQHandler':...

Hi Everyone,

I also have same issue! After adding my C++ code to the project, and convert the project to C++, I tried to build the code, but I received "Unknown type name 'class'" which means the compiler didn't recognize my c++ code! Has any one found a solution to resolve this issue? I really would like to be able to run C++ code on my STM32 mcu.

Thank you.