48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
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/*
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* Copyright (c) 2017 Andrew Kelley
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*
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* This file is part of zig, which is MIT licensed.
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* See http://opensource.org/licenses/MIT
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*/
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#ifndef ZIG_BIGFLOAT_HPP
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#define ZIG_BIGFLOAT_HPP
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#include "bigint.hpp"
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#include "error.hpp"
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#include <stdint.h>
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#include <stddef.h>
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struct BigFloat {
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long double value;
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};
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struct Buf;
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void bigfloat_init_float(BigFloat *dest, long double x);
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void bigfloat_init_bigfloat(BigFloat *dest, const BigFloat *x);
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void bigfloat_init_bigint(BigFloat *dest, const BigInt *op);
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int bigfloat_init_buf_base10(BigFloat *dest, const uint8_t *buf_ptr, size_t buf_len);
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double bigfloat_to_double(const BigFloat *bigfloat);
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void bigfloat_add(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_negate(BigFloat *dest, const BigFloat *op);
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void bigfloat_sub(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_mul(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_div(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_div_trunc(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_div_floor(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_rem(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_mod(BigFloat *dest, const BigFloat *op1, const BigFloat *op2);
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void bigfloat_write_buf(Buf *buf, const BigFloat *op);
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Cmp bigfloat_cmp(const BigFloat *op1, const BigFloat *op2);
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void bigfloat_write_ieee597(const BigFloat *op, uint8_t *buf, size_t bit_count, bool is_big_endian);
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void bigfloat_read_ieee597(BigFloat *dest, const uint8_t *buf, size_t bit_count, bool is_big_endian);
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// convenience functions
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Cmp bigfloat_cmp_zero(const BigFloat *bigfloat);
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#endif
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