* Fix compilation on AIX: GCC's fixincludes eliminates isinf() declaration

* Move file comment to the top of the header where it belongs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17349 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2004-10-29 23:17:45 +00:00
parent 7614e5130b
commit 9437db4e78

View File

@ -1,4 +1,4 @@
//===-- IsInf.cpp ---------------------------------------------------------===//
//===-- IsInf.cpp - Platform-independent wrapper around C99 isinf() -------===//
//
// The LLVM Compiler Infrastructure
//
@ -6,12 +6,9 @@
// 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
@ -27,6 +24,11 @@ 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; }
#else
# error "Don't know how to get isinf()"
#endif