Bug #8846: mpi: right-hand operand of comma expression has no effect - illumos gate - illumos

Bug #8846

mpi: right-hand operand of comma expression has no effect

Added by Toomas Soome over 3 years ago. Updated about 3 years ago.

Status:

Closed

Priority:

Normal

Assignee:

Toomas Soome

Category:

driver - device drivers

Start date:

2017-11-21

Due date:

% Done:

90%

Estimated time:

Difficulty:

Medium

Tags:

Gerrit CR:

Description

Debug build error from gcc 6:

    In file included from /code/illumos-gate/usr/src/common/mpi/mpi.c:52:0:
    /code/illumos-gate/usr/src/common/mpi/mpi.c: In function 's_mp_fixup_reciprocal':
    /code/illumos-gate/usr/src/common/mpi/mpi-priv.h:303:71: error: right-hand operand of comma expression has no effect [-Werror=unused-value]
     (s_mpv_mul_d_add_prop(MP_DIGITS(a), MP_USED(a), b, MP_DIGITS(c) + off), MP_OKAY)
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
    /code/illumos-gate/usr/src/common/mpi/mpi.c:2208:5: note: in expansion of macro 's_mp_mul_d_add_offset'
         s_mp_mul_d_add_offset(p, v, x, ix); /* x += p * v * (RADIX ** ix) */
         ^~~~~~~~~~~~~~~~~~~~~
    cc1: all warnings being treated as errors

Related issues