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Initialize x and set it to 0/1. Each variable should normally only be
initialized once, or at least cleared out (using the function mpq_clear
)
between each initialization.
Initialize a NULL-terminated list of mpq_t
variables, and set their
values to 0/1.
Free the space occupied by x. Make sure to call this function for all
mpq_t
variables when you are done with them.
Free the space occupied by a NULL-terminated list of mpq_t
variables.
Assign rop from op.
Set the value of rop to op1/op2. Note that if op1 and
op2 have common factors, rop has to be passed to
mpq_canonicalize
before any operations are performed on rop.
Set rop from a null-terminated string str in the given base.
The string can be an integer like “41” or a fraction like “41/152”. The
fraction must be in canonical form (see Rational Number Functions), or if
not then mpq_canonicalize
must be called.
The numerator and optional denominator are parsed the same as in
mpz_set_str
(see Assigning Integers). White space is allowed in
the string, and is simply ignored. The base can vary from 2 to 62, or
if base is 0 then the leading characters are used: 0x
or 0X
for hex,
0b
or 0B
for binary,
0
for octal, or decimal otherwise. Note that this is done separately
for the numerator and denominator, so for instance 0xEF/100
is 239/100,
whereas 0xEF/0x100
is 239/256.
The return value is 0 if the entire string is a valid number, or -1 if not.
Swap the values rop1 and rop2 efficiently.
Next: Rational Conversions, Previous: Rational Number Functions, Up: Rational Number Functions [Index]