diff options
| author | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-12-13 22:42:51 -0200 |
|---|---|---|
| committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2017-01-04 16:25:04 -0200 |
| commit | f67d78192c1be9d56d3a6f3fda4e0a70ae48c44d (patch) | |
| tree | e08b1ae84e100cb5a17819f1bb9416a6c203d19b /math/w_exp2_compat.c | |
| parent | 811de1a68863f7903341288a113b8c0ac7aa9c0e (diff) | |
| download | glibc-f67d78192c1be9d56d3a6f3fda4e0a70ae48c44d.tar.gz glibc-f67d78192c1be9d56d3a6f3fda4e0a70ae48c44d.tar.xz glibc-f67d78192c1be9d56d3a6f3fda4e0a70ae48c44d.zip | |
Move wrappers to libm-compat-calls-auto
This commit moves one step towards the deprecation of wrappers that use _LIB_VERSION / matherr / __kernel_standard functionality, by adding the suffix '_compat' to their filenames and adjusting Makefiles and #includes accordingly. New template wrappers that do not use such functionality will be added by future patches and will be first used by the float128 wrappers.
Diffstat (limited to 'math/w_exp2_compat.c')
| -rw-r--r-- | math/w_exp2_compat.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/math/w_exp2_compat.c b/math/w_exp2_compat.c new file mode 100644 index 0000000000..ca17f9ea63 --- /dev/null +++ b/math/w_exp2_compat.c @@ -0,0 +1,23 @@ +/* + * wrapper exp2(x) + */ + +#include <math.h> +#include <math_private.h> + +double +__exp2 (double x) +{ + double z = __ieee754_exp2 (x); + if (__builtin_expect (!isfinite (z) || z == 0, 0) + && isfinite (x) && _LIB_VERSION != _IEEE_) + /* exp2 overflow: 44, exp2 underflow: 45 */ + return __kernel_standard (x, x, 44 + !!signbit (x)); + + return z; +} +weak_alias (__exp2, exp2) +#ifdef NO_LONG_DOUBLE +strong_alias (__exp2, __exp2l) +weak_alias (__exp2, exp2l) +#endif |