Author: dim
Date: Sat May 13 22:36:54 2017
New Revision: 318259
URL: https://svnweb.freebsd.org/changeset/base/318259
Log:
Silence a -Wunused warning about the junk variable being used to raise
an inexact floating point exception. The variable cannot be eliminated,
unfortunately, otherwise the desired addition triggering the exception
will be emitted neither by clang, nor by gcc.
Reviewed by: Steve Kargl, bde
MFC after: 3 days
Modified:
head/lib/msun/src/catrig.c
head/lib/msun/src/catrigf.c
head/lib/msun/src/catrigl.c
Modified: head/lib/msun/src/catrig.c
==============================================================================
--- head/lib/msun/src/catrig.c Sat May 13 20:28:32 2017 (r318258)
+++ head/lib/msun/src/catrig.c Sat May 13 22:36:54 2017 (r318259)
@@ -37,7 +37,7 @@ __FBSDID("$FreeBSD$");
#define isinf(x) (fabs(x) == INFINITY)
#undef isnan
#define isnan(x) ((x) != (x))
-#define raise_inexact() do { volatile float junk = 1 + tiny; } while(0)
+#define raise_inexact() do { volatile float junk __unused = 1 + tiny; }
while(0)
#undef signbit
#define signbit(x) (__builtin_signbit(x))
Modified: head/lib/msun/src/catrigf.c
==============================================================================
--- head/lib/msun/src/catrigf.c Sat May 13 20:28:32 2017 (r318258)
+++ head/lib/msun/src/catrigf.c Sat May 13 22:36:54 2017 (r318259)
@@ -51,7 +51,7 @@ __FBSDID("$FreeBSD$");
#define isinf(x) (fabsf(x) == INFINITY)
#undef isnan
#define isnan(x) ((x) != (x))
-#define raise_inexact() do { volatile float junk = 1 + tiny; } while(0)
+#define raise_inexact() do { volatile float junk __unused = 1 + tiny; }
while(0)
#undef signbit
#define signbit(x) (__builtin_signbitf(x))
Modified: head/lib/msun/src/catrigl.c
==============================================================================
--- head/lib/msun/src/catrigl.c Sat May 13 20:28:32 2017 (r318258)
+++ head/lib/msun/src/catrigl.c Sat May 13 22:36:54 2017 (r318259)
@@ -53,7 +53,7 @@ __FBSDID("$FreeBSD$");
#define isinf(x) (fabsl(x) == INFINITY)
#undef isnan
#define isnan(x) ((x) != (x))
-#define raise_inexact() do { volatile float junk = 1 + tiny; } while(0)
+#define raise_inexact() do { volatile float junk __unused = 1 + tiny; }
while(0)
#undef signbit
#define signbit(x) (__builtin_signbitl(x))
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