diff options
Diffstat (limited to 'manual/arith.texi')
| -rw-r--r-- | manual/arith.texi | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/manual/arith.texi b/manual/arith.texi index 1268e37e31..7f8c205ebb 100644 --- a/manual/arith.texi +++ b/manual/arith.texi @@ -201,7 +201,7 @@ better to use those in this section which are introduced in the @w{ISO C @comment math.h @comment ISO -@deftypefun int fpclassify (@emph{float-type} @var{x}) +@deftypefn {Macro} int fpclassify (@emph{float-type} @var{x}) This is a generic macro which works on all floating-point types and which returns a value of type @code{int}. The possible values are: @@ -227,7 +227,7 @@ plain floating-point number without special meaning. This macro is useful if more than property of a number must be tested. If one only has to test for, e.g., a NaN value, there are function which are faster. -@end deftypefun +@end deftypefn The remainder of this section introduces some more specific functions. They might be implemented faster than the call to @code{fpclassify} and @@ -236,7 +236,7 @@ should be used (and not @code{fpclassify}). @comment math.h @comment ISO -@deftypefun int isfinite (@emph{float-type} @var{x}) +@deftypefn {Macro} int isfinite (@emph{float-type} @var{x}) The value returned by this macro is nonzero if the value of @var{x} is not plus or minus infinity and not NaN. I.e., it could be implemented as @@ -247,11 +247,11 @@ not plus or minus infinity and not NaN. I.e., it could be implemented as @code{isfinite} is also implemented as a macro which can handle all floating-point types. Programs should use this function instead of @var{finite} (@pxref{Predicates on Floats}). -@end deftypefun +@end deftypefn @comment math.h @comment ISO -@deftypefun int isnormal (@emph{float-type} @var{x}) +@deftypefn {Macro} int isnormal (@emph{float-type} @var{x}) If @code{isnormal} returns a nonzero value the value or @var{x} is neither a NaN, infinity, zero, nor a denormalized number. I.e., it could be implemented as @@ -259,11 +259,11 @@ could be implemented as @smallexample (fpclassify (x) == FP_NORMAL) @end smallexample -@end deftypefun +@end deftypefn @comment math.h @comment ISO -@deftypefun int isnan (@emph{float-type} @var{x}) +@deftypefn {Macro} int isnan (@emph{float-type} @var{x}) The situation with this macro is a bit complicated. Here @code{isnan} is a macro which can handle all kinds of floating-point types. It returns a nonzero value is @var{x} does not represent a NaN value and @@ -287,7 +287,7 @@ situation the function be absolutely necessary one can use to avoid the macro expansion. Using the macro has two big adavantages: it is more portable and one does not have to choose the right function among @code{isnan}, @code{isnanf}, and @code{isnanl}. -@end deftypefun +@end deftypefn @node Operations on Complex |