Ubuntu MRPT enable_if_t error

参考官网安装教程，（sudo 安装，教程在这里）。安装好MRPT后，写了一个测试程序，报错如下

/usr/include/mrpt/base/include/mrpt/utils/CConfigFileBase.h:79: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
typename = std::enable_if_t

---

发现 enable_if_t 是cpp14里的功能，cpp11只有enable_if。

所以改CMakeLists里面cpp版本选择

set( CMAKE_CXX_FLAGS “-std=c++11”)
改为
set( CMAKE_CXX_FLAGS “-std=c++14”)

编译成功。

CMakeLists.txt

cmake_minimum_required( VERSION 2.8 )
project ( MRPT_example )

set( CMAKE_CXX_FLAGS "-std=c++14")

FIND_PACKAGE( MRPT REQUIRED base gui) # WARNING: Add all the MRPT libs used by your program: "gui", "obs", "slam",etc.

ADD_EXECUTABLE( example1 test.cpp )
TARGET_LINK_LIBRARIES(example1 ${MRPT_LIBS})

test.cpp

/* **************************************
 * mrpt使用
 *
 * ***************************************/
#include 
//#include 
#include 

using namespace std;

int main(int argc, char** argv)
{
    mrpt::gui::CDisplayWindowPlots  win("path2D",400,400);
    win.hold_on();
    win.setPos(1300,0);

    std::vector<double> x,y;
    for (int i = 0; i < 1000; i++)
    {
        double tempx = 10.0*i-500;
        double tempy = 9*i-500;
        x.push_back(tempx);
        y.push_back(tempy);
    }

    win.plot(x,y,"r.3");
    win.axis_fit();
    win.axis_equal(true);
    while(1);

    return 0;
}

效果图