diff options
Diffstat (limited to 'lib/inttostr.h')
-rw-r--r-- | lib/inttostr.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/inttostr.h b/lib/inttostr.h new file mode 100644 index 000000000..130676b42 --- /dev/null +++ b/lib/inttostr.h @@ -0,0 +1,57 @@ +/* inttostr.h -- convert integers to printable strings + + Copyright (C) 2001, 2002 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) + +#ifndef PARAMS +# if defined PROTOTYPES || defined __STDC__ +# define PARAMS(Args) Args +# else +# define PARAMS(Args) () +# endif +#endif + +char *offtostr PARAMS ((off_t, char *)); +char *imaxtostr PARAMS ((intmax_t, char *)); +char *umaxtostr PARAMS ((uintmax_t, char *)); |