strange behavior in reading in rational fractions

[Kevin Ryde]

Nathan Moore <nmoore at physics.umn.edu> writes:
>
> 	mpq_inp_str(f_in[i], DATA, 10);
> 	fscanf(DATA,",");

This is the way to do it.  mpq_inp_str reads numbers, not commas.

> The output without the fscanf is incorrect,

Make sure you check for the error return from mpq_inp_str.