@node ax_cxx_have_ieee_math
@unnumberedsec ax_cxx_have_ieee_math

@majorheading Synopsis

@smallexample
AX_CXX_HAVE_IEEE_MATH
@end smallexample

@majorheading Description

If the compiler has the double math functions acosh, asinh, atanh, cbrt,
expm1, erf, erfc, isnan, j0, j1, jn, gamma, lgamma, ilogb, logb, log1p,
rint, y0, y1, yn, hypot, nextafter, remainder and scalb, define
HAVE_IEEE_MATH.

@majorheading Source Code

Download the
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_cxx_have_ieee_math.m4,latest
version of @file{ax_cxx_have_ieee_math.m4}} or browse
@uref{http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_cxx_have_ieee_math.m4,the
macro's revision history}.

@majorheading License

@w{Copyright @copyright{} 2008 Todd Veldhuizen} @* @w{Copyright @copyright{} 2008 Luc Maisonobe @email{luc@@spaceroots.org}}

Copying and distribution of this file, with or without modification, are
permitted in any medium without royalty provided the copyright notice
and this notice are preserved. This file is offered as-is, without any
warranty.