mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
//===-- IsInf.cpp - Platform-independent wrapper around C99 isinf() -------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Config/config.h"
|
|
|
|
#if HAVE_ISINF_IN_MATH_H
|
|
# include <math.h>
|
|
#elif HAVE_ISINF_IN_CMATH
|
|
# include <cmath>
|
|
#elif HAVE_STD_ISINF_IN_CMATH
|
|
# include <cmath>
|
|
using std::isinf;
|
|
#elif HAVE_FINITE_IN_IEEEFP_H
|
|
// A handy workaround I found at http://www.unixguide.net/sun/faq ...
|
|
// apparently this has been a problem with Solaris for years.
|
|
# include <ieeefp.h>
|
|
static int isinf(double x) { return !finite(x) && x==x; }
|
|
#elif defined(_MSC_VER)
|
|
#include <float.h>
|
|
#define isinf(X) (!_finite(X))
|
|
#elif defined(_AIX) && defined(__GNUC__)
|
|
// GCC's fixincludes seems to be removing the isinf() declaration from the
|
|
// system header /usr/include/math.h
|
|
# include <math.h>
|
|
static int isinf(double x) { return !finite(x) && x==x; }
|
|
#elif defined(__hpux)
|
|
// HP-UX is "special"
|
|
#include <math.h>
|
|
static int isinf(double x) { return ((x)==INFINITY)||((x)==-INFINITY); }
|
|
#else
|
|
# error "Don't know how to get isinf()"
|
|
#endif
|
|
|
|
namespace llvm {
|
|
|
|
int IsInf (float f) { return isinf (f); }
|
|
int IsInf (double d) { return isinf (d); }
|
|
|
|
}; // end namespace llvm;
|