diff options
author | Bruno Haible <bruno@clisp.org> | 2007-02-25 14:28:50 +0000 |
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committer | Bruno Haible <bruno@clisp.org> | 2007-02-25 14:28:50 +0000 |
commit | e4bed0733ad7c8e2b0bda1f77cf52e0d32c5e4f9 (patch) | |
tree | 93674dd9eda159fb926b53685c32444c9cef36fb /lib/printf-frexpl.h | |
parent | 973c0665ffa8d014c50b2c9b808d437c69fb5c50 (diff) | |
download | gnulib-e4bed0733ad7c8e2b0bda1f77cf52e0d32c5e4f9.tar.gz |
New module 'printf-frexpl'.
Diffstat (limited to 'lib/printf-frexpl.h')
-rw-r--r-- | lib/printf-frexpl.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/printf-frexpl.h b/lib/printf-frexpl.h new file mode 100644 index 0000000000..cf4968968e --- /dev/null +++ b/lib/printf-frexpl.h @@ -0,0 +1,24 @@ +/* Split a 'long double' into fraction and mantissa, for hexadecimal printf. + Copyright (C) 2007 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Write a finite, positive number x as + x = mantissa * 2^exp + where exp >= LDBL_MIN_EXP - 1, + mantissa < 2.0, + if x is not a denormalized number then mantissa >= 1.0. + Store exp and return mantissa. */ +extern long double printf_frexpl (long double x, int *exp); |