width() non-functional (for me)

[dougp2]

This code: [code] // width.cpp -- using the width method // C++ primer 17.4, page 1080

#include <ArduinoSTL.h> //#include <PrintStream.h>

void setup() {

Serial.begin(115200);

using std::cout;
int w = cout.width(30);
cout << "default field width = " << w << ":\n";

cout.width(5);
cout << "N" <<':';
cout.width(8);
cout << "N * N" << ":\n";

for (long i = 1; i <= 100; i *= 10)
{
    cout.width(5);
    cout << i <<':';
    cout.width(8);
    cout << i * i << ":\n";
}
// std::cin.get();

}[/code]

void loop() {}

is supposed to print right justified. It doesn't, everything on a line is jammed together.

Am I doing something wrong?

[kirkins]

I'm having a similar issue with accumulate:

'accumulate' is not a member of 'std'

Running as:

float average = std::accumulate(avgTemp.begin(), avgTemp.end(), 0.0)/avgTemp.size();

[mike-matera]

This seems to be a limitation of the underlying uClibc++ library. It looks like some of the functionality is implemented but it clearly doesn't work.