diff options
Diffstat (limited to 'rts/gmp/mpz/inp_str.c')
-rw-r--r-- | rts/gmp/mpz/inp_str.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/rts/gmp/mpz/inp_str.c b/rts/gmp/mpz/inp_str.c deleted file mode 100644 index 7aa5e1fc30..0000000000 --- a/rts/gmp/mpz/inp_str.c +++ /dev/null @@ -1,167 +0,0 @@ -/* mpz_inp_str(dest_integer, stream, base) -- Input a number in base - BASE from stdio stream STREAM and store the result in DEST_INTEGER. - -Copyright (C) 1991, 1993, 1994, 1996, 1998, 2000 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -The GNU MP Library is free software; you can redistribute it and/or modify -it under the terms of the GNU Lesser General Public License as published by -the Free Software Foundation; either version 2.1 of the License, or (at your -option) any later version. - -The GNU MP Library 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 Lesser General Public -License for more details. - -You should have received a copy of the GNU Lesser General Public License -along with the GNU MP Library; see the file COPYING.LIB. If not, write to -the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, -MA 02111-1307, USA. */ - -#include <stdio.h> -#include <ctype.h> -#include "gmp.h" -#include "gmp-impl.h" - -static int -#if __STDC__ -digit_value_in_base (int c, int base) -#else -digit_value_in_base (c, base) - int c; - int base; -#endif -{ - int digit; - - if (isdigit (c)) - digit = c - '0'; - else if (islower (c)) - digit = c - 'a' + 10; - else if (isupper (c)) - digit = c - 'A' + 10; - else - return -1; - - if (digit < base) - return digit; - return -1; -} - -size_t -#if __STDC__ -mpz_inp_str (mpz_ptr x, FILE *stream, int base) -#else -mpz_inp_str (x, stream, base) - mpz_ptr x; - FILE *stream; - int base; -#endif -{ - char *str; - size_t alloc_size, str_size; - int c; - int negative; - mp_size_t xsize; - size_t nread; - - if (stream == 0) - stream = stdin; - - nread = 0; - - /* Skip whitespace. */ - do - { - c = getc (stream); - nread++; - } - while (isspace (c)); - - negative = 0; - if (c == '-') - { - negative = 1; - c = getc (stream); - nread++; - } - - if (digit_value_in_base (c, base == 0 ? 10 : base) < 0) - return 0; /* error if no digits */ - - /* If BASE is 0, try to find out the base by looking at the initial - characters. */ - if (base == 0) - { - base = 10; - if (c == '0') - { - base = 8; - c = getc (stream); - nread++; - if (c == 'x' || c == 'X') - { - base = 16; - c = getc (stream); - nread++; - } - else if (c == 'b' || c == 'B') - { - base = 2; - c = getc (stream); - nread++; - } - } - } - - /* Skip leading zeros. */ - while (c == '0') - { - c = getc (stream); - nread++; - } - - alloc_size = 100; - str = (char *) (*_mp_allocate_func) (alloc_size); - str_size = 0; - - for (;;) - { - int dig; - if (str_size >= alloc_size) - { - size_t old_alloc_size = alloc_size; - alloc_size = alloc_size * 3 / 2; - str = (char *) (*_mp_reallocate_func) (str, old_alloc_size, alloc_size); - } - dig = digit_value_in_base (c, base); - if (dig < 0) - break; - str[str_size++] = dig; - c = getc (stream); - } - - ungetc (c, stream); - - /* Make sure the string is not empty, mpn_set_str would fail. */ - if (str_size == 0) - { - x->_mp_size = 0; - (*_mp_free_func) (str, alloc_size); - return nread; - } - - xsize = (((mp_size_t) (str_size / __mp_bases[base].chars_per_bit_exactly)) - / BITS_PER_MP_LIMB + 2); - if (x->_mp_alloc < xsize) - _mpz_realloc (x, xsize); - - /* Convert the byte array in base BASE to our bignum format. */ - xsize = mpn_set_str (x->_mp_d, (unsigned char *) str, str_size, base); - x->_mp_size = negative ? -xsize : xsize; - - (*_mp_free_func) (str, alloc_size); - return str_size + nread; -} |