( I/O of Rationals

Info Catalog ( Applying Integer Functions ( Rational Number Functions
 Input and Output Functions
 When using any of these functions, it's a good idea to include `stdio.h'
 before `gmp.h', since that will allow `gmp.h' to define prototypes for
 these functions.
    Passing a `NULL' pointer for a STREAM argument to any of these
 functions will make them read from `stdin' and write to `stdout',
  - Function: size_t mpq_out_str (FILE *STREAM, int BASE, mpq_t OP)
      Output OP on stdio stream STREAM, as a string of digits in base
      BASE.  The base may vary from 2 to 36.  Output is in the form
      `num/den' or if the denominator is 1 then just `num'.
      Return the number of bytes written, or if an error occurred,
      return 0.
  - Function: size_t mpq_inp_str (mpq_t ROP, FILE *STREAM, int BASE)
      Read a string of digits from STREAM and convert them to a rational
      in ROP.  Any initial white-space characters are read and
      discarded.  Return the number of characters read (including white
      space), or 0 if a rational could not be read.
      The input can be a fraction like `17/63' or just an integer like
      `123'.  Reading stops at the first character not in this form, and
      white space is not permitted within the string.  If the input
      might not be in canonical form, then `mpq_canonicalize' must be
      called ( Rational Number Functions).
      The BASE can be between 2 and 36, or can be 0 in which case the
      leading characters of the string determine the base, `0x' or `0X'
      for hexadecimal, `0' for octal, or decimal otherwise.  The leading
      characters are examined separately for the numerator and
      denominator of a fraction, so for instance `0x10/11' is 16/11,
      whereas `0x10/0x11' is 16/17.
Info Catalog ( Applying Integer Functions ( Rational Number Functions
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