Compiler and library support for the ISO C++ 2011 standard

I am trying to create an i2c communication in raspbery Pi(debian wheezy) using Qt creator with rpi-hw library. I successfully compiled and installed the rpi-hw library in my linux system. But when I try to include this in my Qt. Got the following errors.

/usr/include/c++/4.7/bits/c++0x_warning.h:32: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
/usr/include/rpi-hw.hpp:159: In file included from /usr/include/rpi-hw.hpp:159:0,
/home/pi/untitled/main.cpp:2: from ../untitled/main.cpp:2:
/usr/include/rpi-hw/types.hpp:32: error: 'std::int8_t' has not been declared
/usr/include/rpi-hw/types.hpp:33: error: 'std::int16_t' has not been declared
/usr/include/rpi-hw/types.hpp:34: error: 'std::int32_t' has not been declared
/usr/include/rpi-hw/types.hpp:35: error: 'std::int64_t' has not been declared
/usr/include/rpi-hw/types.hpp:37: error: 'std::uint8_t' has not been declared


Any one know how to fix this in my Qt creator. I tried to add -std=gnu++11 in Projects->Build Steps-> Additional arguments but no luck

Please help.

Add to the .pro file

Code:

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CONFIG += c++11

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Cheers,
_

Quote:

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Originally Posted by anda_skoa

Add to the .pro file

Code:

---

CONFIG += c++11

---

Cheers,
_

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I tried with CONFIG += c++11 in my .pro file but still the same error is showing.

My .pro file will looks like this

Code:

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TEMPLATE = app
CONFIG += console
CONFIG -= qt
CONFIG += C++11
 
 
 
SOURCES += main.cpp
 
 
#unix:!macx:!symbian: LIBS += -L$$PWD/../Desktop/Rpi-hw-master/build/ -lrpihw
 
#INCLUDEPATH += $$PWD/../Desktop/Rpi-hw-master/include/rpi-hw
#DEPENDPATH += $$PWD/../Desktop/Rpi-hw-master/include/rpi-hw
 
unix:!macx:!symbian: LIBS += -lrpihw

---

and my CPP file

Code:

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#include <iostream>
#include <rpi-hw.hpp>
#include <rpi-hw/driver/i2c.hpp>
 
using namespace std;
using namespace rpihw;
 
#define ID_I2C_SLAVE_ADDRESS 0x20
#define ID_I2C_DEV_PATH "/dev/i2c-0"
 
int main()
{
 
    rpihw::driver::i2c objI2C(ID_I2C_DEV_PATH, ID_I2C_SLAVE_ADDRESS);
 
    char *chData;
     int iSize=0;
        objI2C.write(chData, iSize);
 
    cout << "Hello World!" << endl;
    return 0;
}

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I solved it myself by adding the following in my PRO files

QMAKE_CXXFLAGS += -std=c++11

Determine which flags are required by compiler (and it looks like the error message makes two suggestions). I am posting this here for any one who need this in future.