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stubs.c (hypot, [...]): Don't divide by zero.

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* libmath/stubs.c (hypot, hypotf, hypotl): Don't divide by
	zero.
	Update copyright year.

From-SVN: r67051
This commit is contained in:
Danny Smith 2003-05-21 00:51:24 +00:00 • committed by Danny Smith
parent c1625e69f7
commit 93c858e31a
2 changed files with 13 additions and 1 deletions
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6
libstdc++-v3/ChangeLog
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@ -1,3 +1,9 @@
2003-05-21 Danny Smith <dannysmith@users.sourceforge.net>
* libmath/stubs.c (hypot, hypotf, hypotl): Don't divide by
zero.
Update copyright year.
2003-05-20 Paolo Carlini <pcarlini@unitus.it>
* testsuite/27_io/basic_filebuf/close/char/4.cc: Fix typo.

8
libstdc++-v3/libmath/stubs.c
View file

@ -1,6 +1,6 @@
/* Stub definitions for libmath subpart of libstdc++. */
/* Copyright (C) 2001, 2002 Free Software Foundation, Inc.
/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU ISO C++ Library. This library is free
software; you can redistribute it and/or modify it under the
@ -108,6 +108,8 @@ float
hypotf(float x, float y)
{
float s = fabsf(x) + fabsf(y);
if (s == 0.0F)
return s;
x /= s; y /= s;
return s * sqrtf(x * x + y * y);
}
@ -118,6 +120,8 @@ double
hypot(double x, double y)
{
double s = fabs(x) + fabs(y);
if (s == 0.0)
return s;
x /= s; y /= s;
return s * sqrt(x * x + y * y);
}
@ -128,6 +132,8 @@ long double
hypotl(long double x, long double y)
{
long double s = fabsl(x) + fabsl(y);
if (s == 0.0L)
return s;
x /= s; y /= s;
return s * sqrtl(x * x + y * y);
}