mpi: enforce testing of some return values.

Using a feature of GCC, we mark some functions with the
warn_unused_result attribute. Specifically, those functions
which could return the MP_TOOBIG overflow error.

* mpi/mpi.h (mp_nign): New macro.
(mp_init_size, mp_add_d, mp_sub_d, mp_mul_d, mp_mul_2,
mp_div_d, mp_div_2, mp_expt_d, mp_add, mp_sub, mp_mul,
mp_mul_2d, mp_sqr, mp_expt, mp_2expt, mp_sqrt, mp_addmod,
mp_submod, mp_mulmod, mp_sqrmod, mp_exptmod, mp_exptmod_d,
mp_lcm, mp_xgcd, mp_invmod, mp_trunc_comp, mp_trunc, mp_shift,
mp_to_double, mp_read_signed_bin, mp_read_unsigned_bin,
mp_read_radix): Functions attributed with unused result
warning.

0 files changed, 0 insertions, 0 deletions