85 lines
1.1 KiB
C
85 lines
1.1 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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typedef struct {
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int64_t num;
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int64_t den;
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} rational_t;
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#define rational(n, d) ((rational_t) { \
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.num = n, \
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.den = d, \
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})
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bool
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rational_valid(
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const rational_t* x
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);
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void
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rational_add(
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rational_t* x,
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const rational_t* a,
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const rational_t* b
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);
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void
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rational_addeq(
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rational_t* x,
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const rational_t* a
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);
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void
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rational_sub(
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rational_t* x,
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const rational_t* a,
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const rational_t* b
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);
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void
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rational_subeq(
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rational_t* x,
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const rational_t* a
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);
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void
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rational_mul(
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rational_t* x,
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const rational_t* a,
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const rational_t* b
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);
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void
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rational_muleq(
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rational_t* x,
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const rational_t* a
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);
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void
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rational_div(
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rational_t* x,
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const rational_t* a,
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const rational_t* b
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);
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void
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rational_diveq(
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rational_t* x,
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const rational_t* a
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);
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void
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rational_simplify(
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rational_t* x
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);
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/* Don't forget that this operation may cause a discrepancy. */
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void
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rational_normalize(
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rational_t* x,
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int64_t den
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);
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float
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rational_calculate(
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const rational_t* x
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);
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