[PATCH v3 5/5] math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning

From: Vincent Chen
Date: Thu Nov 01 2018 - 03:17:48 EST


_FP_ROUND_ZERO is defined as 0 and used as a statemente in macro
_FP_ROUND. This generates "error: statement with no effect
[-Werror=unused-value]" from gcc. Defining _FP_ROUND_ZERO as (void)0 to
fix it.

This modification is quoted from glibc 'commit <In libc/:>
(8ed1e7d5894000c155acbd06f)'

Signed-off-by: Vincent Chen <vincentc@xxxxxxxxxxxxx>
---
include/math-emu/soft-fp.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/math-emu/soft-fp.h b/include/math-emu/soft-fp.h
index 3f284bc..5650c16 100644
--- a/include/math-emu/soft-fp.h
+++ b/include/math-emu/soft-fp.h
@@ -138,7 +138,7 @@
_FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
} while (0)

-#define _FP_ROUND_ZERO(wc, X) 0
+#define _FP_ROUND_ZERO(wc, X) (void)0

#define _FP_ROUND_PINF(wc, X) \
do { \
--
1.7.1