rational

Rational Number Arithmetic

Functions

Function	Description
`_rat_gcd`	Internal: GCD (Euclidean algorithm).
`_rat_abs`	Internal: absolute value.
`rat_new`	Create rational number, auto-simplified.
`rat_add`	Add: a/b + c/d = (ad + bc) / bd.
`rat_sub`	Subtract: a/b - c/d = (ad - bc) / bd.
`rat_mul`	Multiply: (a/b) * (c/d) = ac / bd.
`rat_div`	Divide: (a/b) / (c/d) = ad / bc.
`rat_cmp`	Compare: returns -1, 0, or 1.
`rat_eq`	Equality check.
`rat_to_i64`	Truncated integer value (num / den).
`rat_num`	Numerator.
`rat_den`	Denominator.
`rat_is_integer`	Check if integer (den == 1).
`rat_abs`	Absolute value.
`rat_negate`	Negate.
`_rat_write_int`	Internal: write integer to buffer.
`rat_to_str`	Format as “num/den” string. Returns length.

fn _rat_gcd(a: i64, b: i64) -> i64

Internal: GCD (Euclidean algorithm).

fn _rat_abs(x: i64) -> i64

Internal: absolute value.

fn rat_new(num: i64, den: i64) -> &i64

Create rational number, auto-simplified.

fn rat_add(a: &i64, b: &i64) -> &i64

Add: a/b + c/d = (ad + bc) / bd.

fn rat_sub(a: &i64, b: &i64) -> &i64

Subtract: a/b - c/d = (ad - bc) / bd.

fn rat_mul(a: &i64, b: &i64) -> &i64

Multiply: (a/b) * (c/d) = ac / bd.

fn rat_div(a: &i64, b: &i64) -> &i64

Divide: (a/b) / (c/d) = ad / bc.

fn rat_cmp(a: &i64, b: &i64) -> i64

Compare: returns -1, 0, or 1.

fn rat_eq(a: &i64, b: &i64) -> i64

Equality check.

fn rat_to_i64(a: &i64) -> i64

Truncated integer value (num / den).

fn rat_num(a: &i64) -> i64

Numerator.

fn rat_den(a: &i64) -> i64

Denominator.

fn rat_is_integer(a: &i64) -> i64

Check if integer (den == 1).

fn rat_abs(a: &i64) -> &i64

Absolute value.

fn rat_negate(a: &i64) -> &i64

Negate.

fn _rat_write_int(val: i64, out: &i8, off: i64) -> i64

Internal: write integer to buffer.

fn rat_to_str(a: &i64, out: &i8) -> i64

Format as “num/den” string. Returns length.