math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
authorVincent Chen <vincentc@andestech.com>
Thu, 22 Nov 2018 03:14:38 +0000 (11:14 +0800)
committerGreentime Hu <greentime@andestech.com>
Thu, 22 Nov 2018 10:13:42 +0000 (18:13 +0800)
_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@andestech.com>
Acked-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
include/math-emu/soft-fp.h

index 3f284bc031809f6cef05a36360f2c54ca2879ad9..5650c1628383057034cbdff2504376a156aeb8f8 100644 (file)
@@ -138,7 +138,7 @@ do {                                                        \
       _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 {                                                   \