Node:I/O of Integers, Next:Integer Random Numbers, Previous:Integer Logic and Bit Fiddling, Up:Integer Functions
Functions that perform input from a stdio stream, and functions that output to
a stdio stream. Passing a NULL pointer for a stream argument to any of
these functions will make them read from stdin and write to
stdout, respectively.
When using any of these functions, it is a good idea to include stdio.h
before gmp.h, since that will allow gmp.h to define prototypes
for these functions.
| size_t mpz_out_str (FILE *stream, int base, mpz_t op) | Function |
|
Output op on stdio stream stream, as a string of digits in base
base. The base may vary from 2 to 36.
Return the number of bytes written, or if an error occurred, return 0. |
| size_t mpz_inp_str (mpz_t rop, FILE *stream, int base) | Function |
|
Input a possibly white-space preceded string in base base from stdio
stream stream, and put the read integer in rop. The base may vary
from 2 to 36. If base is 0, the actual base is determined from the
leading characters: if the first two characters are `0x' or `0X', hexadecimal
is assumed, otherwise if the first character is `0', octal is assumed,
otherwise decimal is assumed.
Return the number of bytes read, or if an error occurred, return 0. |
| size_t mpz_out_raw (FILE *stream, mpz_t op) | Function |
|
Output op on stdio stream stream, in raw binary format. The
integer is written in a portable format, with 4 bytes of size information, and
that many bytes of limbs. Both the size and the limbs are written in
decreasing significance order (i.e., in big-endian).
The output can be read with Return the number of bytes written, or if an error occurred, return 0. The output of this can not be read by |
| size_t mpz_inp_raw (mpz_t rop, FILE *stream) | Function |
Input from stdio stream stream in the format written by
mpz_out_raw, and put the result in rop. Return the number of
bytes read, or if an error occurred, return 0.
This routine can read the output from |