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author | Paul Eggert <eggert@cs.ucla.edu> | 2004-03-31 06:21:11 +0000 |
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committer | Paul Eggert <eggert@cs.ucla.edu> | 2004-03-31 06:21:11 +0000 |
commit | 100a8e01f28671dd2f73a1541b1bbd15c9590947 (patch) | |
tree | 12e75a4364e98ecfd037e6cc7c5c738d4a69f000 /lib/inttostr.h | |
parent | a8d12f1b53177f6e38e53de9dd48d58a5d41396b (diff) | |
download | gnulib-100a8e01f28671dd2f73a1541b1bbd15c9590947.tar.gz |
New module inttostr.
Diffstat (limited to 'lib/inttostr.h')
-rw-r--r-- | lib/inttostr.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/inttostr.h b/lib/inttostr.h new file mode 100644 index 0000000000..de2b164f6b --- /dev/null +++ b/lib/inttostr.h @@ -0,0 +1,49 @@ +/* inttostr.h -- convert integers to printable strings + + Copyright (C) 2001, 2002, 2003 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* Written by Paul Eggert */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + +#if HAVE_LIMITS_H +# include <limits.h> +#endif +#ifndef CHAR_BIT +# define CHAR_BIT 8 +#endif + +#if HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif + +/* Upper bound on the string length of an integer converted to string. + 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit; + add 1 for integer division truncation; add 1 more for a minus sign. */ +#define INT_STRLEN_BOUND(t) ((sizeof (t) * CHAR_BIT - 1) * 302 / 1000 + 2) + +#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1) + +char *offtostr (off_t, char *); +char *imaxtostr (intmax_t, char *); +char *umaxtostr (uintmax_t, char *); |