Re: MinGW and 3 exponent digits

[John W. Eaton]

On 11/12/2013 03:18 PM, Rik wrote:
> 11/12/13
>
> All,
>
> Apparently MinGW provides a work-around for the non-standard Windows
> behavior of printing 3 exponent digits through the environment variable
> PRINTF_EXPONENT_DIGITS.  If this variable is set to 2 then only two digits
> will be displayed.
>
> Sample code:
>
> octave-cli:1> format short e
> octave-cli:2> pi
> ans =   3.1416e+000
> octave-cli:3> setenv ("PRINTF_EXPONENT_DIGITS", "2")
> octave-cli:4> pi
> ans =    3.1416e+00
>
> Should we look to put something in Octave's start-up code which sets this
> environment variable when MinGW is detected?

What does it do when this environment variable is set?

Is it not possible to call _set_output_format if we are compiling with 
MinGW?

jwe