diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/k_tanl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/k_tanl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/k_tanl.c b/sysdeps/ieee754/ldbl-128ibm/k_tanl.c index bcf8b5e7d6..7f1caeebdf 100644 --- a/sysdeps/ieee754/ldbl-128ibm/k_tanl.c +++ b/sysdeps/ieee754/ldbl-128ibm/k_tanl.c @@ -56,6 +56,7 @@ * = 1 - 2*(tan(y) - (tan(y)^2)/(1+tan(y))) */ +#include <libc-internal.h> #include <math.h> #include <math_private.h> static const long double @@ -129,8 +130,19 @@ __kernel_tanl (long double x, long double y, int iy) { v = (long double) iy; w = (v - 2.0 * (x - (w * w / (w + v) - r))); + /* SIGN is set for arguments that reach this code, but not + otherwise, resulting in warnings that it may be used + uninitialized although in the cases where it is used it has + always been set. */ + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (4, 7) + DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized"); +#else + DIAG_IGNORE_NEEDS_COMMENT (5, "-Wuninitialized"); +#endif if (sign < 0) w = -w; + DIAG_POP_NEEDS_COMMENT; return w; } if (iy == 1) |