From 4e597feef0595caefa39ab43c813734a1244fa84 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sun, 6 May 2012 14:48:20 -0400 Subject: [PATCH] fix unused variable warnings in new nextafter/nexttoward code apparently initializing a variable is not "using" it but assigning to it is "using" it. i don't really like this fix, but it's better than trying to make a bigger cleanup just before a release, and it should work fine (tested against nsz's math tests). --- src/math/nextafter.c | 3 ++- src/math/nextafterf.c | 3 ++- src/math/nextafterl.c | 6 ++++-- src/math/nexttoward.c | 3 ++- src/math/nexttowardf.c | 3 ++- 5 files changed, 12 insertions(+), 6 deletions(-) diff --git a/src/math/nextafter.c b/src/math/nextafter.c index d9e29236..e4bfb022 100644 --- a/src/math/nextafter.c +++ b/src/math/nextafter.c @@ -30,7 +30,8 @@ double nextafter(double x, double y) return x + x; /* raise underflow if ux.value is subnormal or zero */ if (e == 0) { - volatile double z = x*x + ux.value*ux.value; + volatile double z; + z = x*x + ux.value*ux.value; } return ux.value; } diff --git a/src/math/nextafterf.c b/src/math/nextafterf.c index 4727f7b0..47775b92 100644 --- a/src/math/nextafterf.c +++ b/src/math/nextafterf.c @@ -29,7 +29,8 @@ float nextafterf(float x, float y) return x + x; /* raise underflow if ux.value is subnormal or zero */ if (e == 0) { - volatile float z = x*x + ux.value*ux.value; + volatile float z; + z = x*x + ux.value*ux.value; } return ux.value; } diff --git a/src/math/nextafterl.c b/src/math/nextafterl.c index 611ea53d..c09d9dd0 100644 --- a/src/math/nextafterl.c +++ b/src/math/nextafterl.c @@ -39,7 +39,8 @@ long double nextafterl(long double x, long double y) return x + x; /* raise underflow if ux.value is subnormal or zero */ if (ux.bits.exp == 0) { - volatile float z = x*x + ux.value*ux.value; + volatile float z; + z = x*x + ux.value*ux.value; } return ux.value; } @@ -77,7 +78,8 @@ long double nextafterl(long double x, long double y) return x + x; /* raise underflow if ux.value is subnormal or zero */ if (ux.bits.exp == 0) { - volatile float z = x*x + ux.value*ux.value; + volatile float z; + z = x*x + ux.value*ux.value; } return ux.value; } diff --git a/src/math/nexttoward.c b/src/math/nexttoward.c index 741b6b5f..43f8fee8 100644 --- a/src/math/nexttoward.c +++ b/src/math/nexttoward.c @@ -39,7 +39,8 @@ double nexttoward(double x, long double y) return x + x; /* raise underflow if ux.value is subnormal or zero */ if (e == 0) { - volatile float z = x*x + ux.value*ux.value; + volatile float z; + z = x*x + ux.value*ux.value; } return ux.value; } diff --git a/src/math/nexttowardf.c b/src/math/nexttowardf.c index 821f72a5..e8e6f676 100644 --- a/src/math/nexttowardf.c +++ b/src/math/nexttowardf.c @@ -31,7 +31,8 @@ float nexttowardf(float x, long double y) return x + x; /* raise underflow if ux.value is subnormal or zero */ if (e == 0) { - volatile float z = x*x + ux.value*ux.value; + volatile float z; + z = x*x + ux.value*ux.value; } return ux.value; } -- 2.25.1