Error with "using namespace …"

[GeneM]

I’m still very much a beginner with VisualGDB but I have successfully built a lot of small programs while I’m learning.  Until now.  I’m building a new VisulGDB embedded program starting with the STM32 CubeMX sample “UART_TwoBoards_ComDMA”  It is supposed to use the “C++17 with GNU extensions” language standard.  But when I try to add a “using namespace xyz” like this, I get a “unknown type name ‘using'” error. I’ve built several programs from this sample in the past and they all work with the using namespace statement but I can’t see what I did or didn’t do in this case.  Any ideas?

Thanks

#include "main.h"
#include "qpcpp.h"
#include "bsp.hpp"
#include <iostream> // for cout/cerr
#include <cstdlib> // for exit()

using namespace QP;
using namespace std;

#ifdef __cplusplus
extern "C"
#endif

UART_HandleTypeDef UartHandle;

// Buffers for RX and TX
uint8_t TXBuffer[] = "$PUBX,00*33\r\n";
uint8_t RXBuffer[256];

static void SystemClock_Config(void);
static void Error_Handler(void);
static uint16_t Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);

int main(void)
{ // code here

}

 

[GeneM]

As happens so often, I figured out the solution 30 seconds after posting this question.  The sample file used main.c and I needed to rename is main.cpp.  Sorry for the distraction.

[Author]

Posts