错误：
~> g++ ssstring.cpp
ssstring.cpp: In function ‘int main()’:
ssstring.cpp:12:31: error: ‘setprecision’ is not a member of ‘std’
ssstring.cpp:12:52: error: ‘numeric_limits’ is not a member of ‘std’
ssstring.cpp:12:74: error: expected primary-expression before ‘float’
ssstring.cpp:13:30: error: ‘setprecision’ is not a member of ‘std’
ssstring.cpp:13:51: error: ‘numeric_limits’ is not a member of ‘std’
ssstring.cpp:13:73: error: expected primary-expression before ‘float’
ssstring.cpp:14:28: error: ‘setprecision’ is not a member of ‘std’
ssstring.cpp:14:49: error: ‘numeric_limits’ is not a member of ‘std’
ssstring.cpp:14:71: error: expected primary-expression before ‘float’
anisha@linux-trra:~>
代码：
#include <sstream>
#include <iostream>
#include <string.h>
int main ()
{
// Convert `lat`, `lons`, and `vehicleId` to string.
float selectedPointLat = 2.2;
float selectedPointLng = 2.3;
float vehicleId = 1.0;
std :: stringstream floatToStringLat, floatToStringLng, floatToStringVehicleId;
floatToStringLat << std :: setprecision (std :: numeric_limits<float> :: digits10 + 1); floatToStringLat << selectedPointLat;
floatToStringLng << std :: setprecision (std :: numeric_limits<float> :: digits10 + 1); floatToStringLng << selectedPointLng;
floatToStringVehicleId << std :: setprecision (std :: numeric_limits<float> :: digits10 + 1); floatToStringVehicleId << vehicleId;
}