+++ /dev/null
-/* -*-c-*-
- *
- * $Id$
- *
- * Textual representation of multiprecision numbers
- *
- * (c) 1999 Straylight/Edgeware
- */
-
-/*----- Licensing notice --------------------------------------------------*
- *
- * This file is part of Catacomb.
- *
- * Catacomb is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Library General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * Catacomb 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 Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with Catacomb; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- */
-
-#ifndef CATACOMB_MPTEXT_H
-#define CATACOMB_MPTEXT_H
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-/*----- Header files ------------------------------------------------------*/
-
-#ifndef CATACOMB_MP_H
-# include "mp.h"
-#endif
-
-/*----- Data structures ---------------------------------------------------*/
-
-typedef struct mptext_ops {
- int (*get)(void */*p*/);
- void (*unget)(int /*ch*/, void */*p*/);
- int (*put)(const char */*s*/, size_t /*len*/, void */*p*/);
-} mptext_ops;
-
-/*----- Functions provided ------------------------------------------------*/
-
-/* --- @mp_read@ --- *
- *
- * Arguments: @mp *m@ = destination multiprecision number
- * @int radix@ = base to assume for data (or zero to guess)
- * @const mptext_ops *ops@ = pointer to operations block
- * @void *p@ = data for the operations block
- *
- * Returns: The integer read, or zero if it didn't work.
- *
- * Use: Reads an integer from some source. If the @radix@ is
- * specified, the number is assumed to be given in that radix,
- * with the letters `a' (either upper- or lower-case) upwards
- * standing for digits greater than 9. Otherwise, base 10 is
- * assumed unless the number starts with `0' (octal), `0x' (hex)
- * or `nnn_' (base `nnn'). An arbitrary amount of whitespace
- * before the number is ignored.
- */
-
-extern mp *mp_read(mp */*m*/, int /*radix*/,
- const mptext_ops */*ops*/, void */*p*/);
-
-/* --- @mp_write@ --- *
- *
- * Arguments: @mp *m@ = pointer to a multi-precision integer
- * @int radix@ = radix to use when writing the number out
- * @const mptext_ops *ops@ = pointer to an operations block
- * @void *p@ = data for the operations block
- *
- * Returns: Zero if it worked, nonzero otherwise.
- *
- * Use: Writes a large integer in textual form.
- */
-
-extern int mp_write(mp */*m*/, int /*radix*/,
- const mptext_ops */*ops*/, void */*p*/);
-
-/* --- @mptext_len@ --- *
- *
- * Arguments: @mp *x@ = number to work on
- * @int r@ = radix the number will be expressed in
- *
- * Returns: The number of digits needed to represent the number in the
- * given base. This will not include space for a leading sign
- * (use @MP_NEGP@ to check that, or just add one on for luck);
- * neither will it add space for a terminating null. In general
- * the answer will be an overestimate.
- */
-
-extern size_t mptext_len(mp */*x*/, int /*r*/);
-
-/*----- File I/O ----------------------------------------------------------*/
-
-#include <stdio.h>
-
-/* --- Operations table --- *
- *
- * The @mptext_fileops@ expect the pointer argument to be a @FILE *@.
- */
-
-extern const mptext_ops mptext_fileops;
-
-/* --- Convenience functions --- */
-
-extern mp *mp_readfile(mp */*m*/, FILE */*fp*/, int /*radix*/);
-extern int mp_writefile(mp */*m*/, FILE */*fp*/, int /*radix*/);
-
-#define MP_DOFPRINTFR(fp, args, m, r) do { \
- fprintf args; \
- if (m) \
- mp_writefile(m, fp, r); \
- else \
- fputs("<null>", fp); \
- fputc('\n', fp); \
-} while (0)
-
-#define MP_DOFPRINTR(fp, name, m, r) \
- MP_DOFPRINTFR(fp, (fp, "%s = ", name), m, r)
-
-#define MP_PRINT(name, m) MP_DOFPRINTR(stdout, name, m, 10)
-#define MP_EPRINT(name, m) MP_DOFPRINTR(stderr, name, m, 10)
-#define MP_PRINTX(name, m) MP_DOFPRINTR(stdout, name, m, 16)
-#define MP_EPRINTX(name, m) MP_DOFPRINTR(stderr, name, m, 16)
-
-#define MP_FPRINTF(fp, args, m) MP_DOFPRINTFR(fp, args, m, 10)
-#define MP_FPRINTFX(fp, args, m) MP_DOFPRINTFR(fp, args, m, 16)
-
-/*----- String I/O --------------------------------------------------------*/
-
-/* --- Context format --- */
-
-typedef struct mptext_stringctx {
- char *buf;
- char *lim;
-} mptext_stringctx;
-
-/* --- Operations table --- */
-
-extern const mptext_ops mptext_stringops;
-
-/* --- Convenience functions --- */
-
-extern mp *mp_readstring(mp */*m*/, const char */*p*/, char **/*end*/,
- int /*radix*/);
-extern int mp_writestring(mp */*m*/, char */*p*/, size_t /*sz*/,
- int /*radix*/);
-
-/*----- Dynamic string I/O ------------------------------------------------*/
-
-#include <mLib/dstr.h>
-
-/* --- Context format --- */
-
-typedef struct mptext_dstrctx {
- dstr *d;
- size_t i;
-} mptext_dstrctx;
-
-/* --- Operations table --- */
-
-extern const mptext_ops mptext_dstrops;
-
-/* --- Convenience functions --- */
-
-extern mp *mp_readdstr(mp */*m*/, dstr */*d*/, size_t */*off*/,
- int /*radix*/);
-extern int mp_writedstr(mp */*m*/, dstr */*d*/, int /*radix*/);
-
-/*----- That's all, folks -------------------------------------------------*/
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif
projects / u / mdw / catacomb / blobdiff