diff options
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/arith.texi | 40 | ||||
| -rwxr-xr-x | manual/libm-err-tab.pl | 6 |
2 files changed, 43 insertions, 3 deletions
diff --git a/manual/arith.texi b/manual/arith.texi index 72682f0..f54b1ec 100644 --- a/manual/arith.texi +++ b/manual/arith.texi @@ -1702,6 +1702,46 @@ These functions are identical to the corresponding versions of double}. @end deftypefun +@comment math.h +@comment GNU +@deftypefun double nextup (double @var{x}) +@comment math.h +@comment GNU +@deftypefunx float nextupf (float @var{x}) +@comment math.h +@comment GNU +@deftypefunx {long double} nextupl (long double @var{x}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +The @code{nextup} function returns the next representable neighbor of @var{x} +in the direction of positive infinity. If @var{x} is the smallest negative +subnormal number in the type of @var{x} the function returns @code{-0}. If +@math{@var{x} = @code{0}} the function returns the smallest positive subnormal +number in the type of @var{x}. If @var{x} is NaN, NaN is returned. +If @var{x} is @math{+@infinity{}}, @math{+@infinity{}} is returned. +@code{nextup} is based on TS 18661 and currently enabled as a GNU extension. +@code{nextup} never raises an exception except for signaling NaNs. +@end deftypefun + +@comment math.h +@comment GNU +@deftypefun double nextdown (double @var{x}) +@comment math.h +@comment GNU +@deftypefunx float nextdownf (float @var{x}) +@comment math.h +@comment GNU +@deftypefunx {long double} nextdownl (long double @var{x}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +The @code{nextdown} function returns the next representable neighbor of @var{x} +in the direction of negative infinity. If @var{x} is the smallest positive +subnormal number in the type of @var{x} the function returns @code{+0}. If +@math{@var{x} = @code{0}} the function returns the smallest negative subnormal +number in the type of @var{x}. If @var{x} is NaN, NaN is returned. +If @var{x} is @math{-@infinity{}}, @math{-@infinity{}} is returned. +@code{nextdown} is based on TS 18661 and currently enabled as a GNU extension. +@code{nextdown} never raises an exception except for signaling NaNs. +@end deftypefun + @cindex NaN @comment math.h @comment ISO diff --git a/manual/libm-err-tab.pl b/manual/libm-err-tab.pl index 3846afc..c2792c5 100755 --- a/manual/libm-err-tab.pl +++ b/manual/libm-err-tab.pl @@ -73,9 +73,9 @@ use vars qw (%results @all_floats %suffices @all_functions); "fmax", "fmin", "fmod", "frexp", "gamma", "hypot", "ilogb", "j0", "j1", "jn", "lgamma", "lrint", "llrint", "log", "log10", "log1p", "log2", "logb", "lround", - "llround", "modf", "nearbyint", "nextafter", "nexttoward", "pow", - "remainder", "remquo", "rint", "round", "scalb", "scalbn", "scalbln", - "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma", + "llround", "modf", "nearbyint", "nextafter", "nextdown", "nexttoward", + "nextup", "pow", "remainder", "remquo", "rint", "round", "scalb", + "scalbn", "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma", "trunc", "y0", "y1", "yn" ); # fpclassify, isnormal, isfinite, isinf, isnan, issignaling, signbit, # isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered |