llvm-6502/lib/Support/IsInf.cpp
Reid Spencer 551ccae044 Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-01 22:55:40 +00:00

37 lines
1.1 KiB
C++

//===-- IsInf.cpp ---------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
//
// Platform-independent wrapper around C99 isinf().
//
//===----------------------------------------------------------------------===//
#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; }
#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;