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Functions
void	encode_decimal32 (const struct real_format fmt, long , const REAL_VALUE_TYPE *)
void	encode_decimal64 (const struct real_format fmt, long , const REAL_VALUE_TYPE *)
void	decode_decimal128 (const struct real_format , REAL_VALUE_TYPE , const long *)
void	decode_decimal32 (const struct real_format , REAL_VALUE_TYPE , const long *)
void	decode_decimal64 (const struct real_format , REAL_VALUE_TYPE , const long *)
void	encode_decimal128 (const struct real_format fmt, long , const REAL_VALUE_TYPE *)
int	decimal_do_compare (const REAL_VALUE_TYPE , const REAL_VALUE_TYPE , int)
void	decimal_real_from_string (REAL_VALUE_TYPE , const char )
void	decimal_round_for_format (const struct real_format , REAL_VALUE_TYPE )
void	decimal_real_convert (REAL_VALUE_TYPE , enum machine_mode, const REAL_VALUE_TYPE )
void	decimal_real_to_decimal (char , const REAL_VALUE_TYPE , size_t, size_t, int)
void	decimal_do_fix_trunc (REAL_VALUE_TYPE , const REAL_VALUE_TYPE )
void	decimal_real_maxval (REAL_VALUE_TYPE *, int, enum machine_mode)
void	decimal_real_to_integer2 (HOST_WIDE_INT , HOST_WIDE_INT , const REAL_VALUE_TYPE *)
HOST_WIDE_INT	decimal_real_to_integer (const REAL_VALUE_TYPE *)

Function Documentation

int decimal_do_compare	(	const REAL_VALUE_TYPE *	a,
		const REAL_VALUE_TYPE *	b,
		int	nan_result
	)

Arithmetic and conversion functions.

Helper function to real.c:do_compare() to handle decimal internal representation including when one of the operands is still in the binary internal representation.

 If either operand is non-decimal, create temporary versions.

 Convert into decNumber form for comparison operation.

 Finally, do the comparison.

 Return the comparison result.

void decimal_do_fix_trunc	(	REAL_VALUE_TYPE *	,
		const REAL_VALUE_TYPE *
	)

void decimal_real_convert	(	REAL_VALUE_TYPE *	r,
		enum machine_mode	mode,
		const REAL_VALUE_TYPE *	a
	)

Extend or truncate to a new mode. Handles conversions between binary and decimal types.

Referenced by real_nan().

void decimal_real_from_string	(	REAL_VALUE_TYPE *	,
		const char *
	)

void decimal_real_maxval	(	REAL_VALUE_TYPE *	,
		int	,
		enum	machine_mode
	)

void decimal_real_to_decimal	(	char *	str,
		const REAL_VALUE_TYPE *	r_orig,
		size_t	buf_size,
		size_t	digits,
		int	crop_trailing_zeros
	)

Render R_ORIG as a decimal floating point constant. Emit DIGITS significant digits in the result, bounded by BUF_SIZE. If DIGITS is 0, choose the maximum for the representation. If CROP_TRAILING_ZEROS, strip trailing zeros. Currently, not honoring DIGITS or CROP_TRAILING_ZEROS.

decimal128ToString requires space for at least 24 characters; Require two more for suffix.

HOST_WIDE_INT decimal_real_to_integer ( const REAL_VALUE_TYPE * )

void decimal_real_to_integer2	(	HOST_WIDE_INT *	plow,
		HOST_WIDE_INT *	phigh,
		const REAL_VALUE_TYPE *	r
	)

Likewise, but to an integer pair, HI+LOW.

Convert to REAL_VALUE_TYPE and call appropriate conversion function.

References decimal_from_binary().

Referenced by real_can_shorten_arithmetic().

void decimal_round_for_format	(	const struct real_format *	,
		REAL_VALUE_TYPE *
	)

void decode_decimal128	(	const struct real_format *	fmt,
		REAL_VALUE_TYPE *	r,
		const long *	buf
	)

Decode an IEEE 754 decimal128 type into a real.

void decode_decimal32	(	const struct real_format *	fmt,
		REAL_VALUE_TYPE *	r,
		const long *	buf
	)

Decode 32/64/128-bit IEEE 754 encoded values into REAL_VALUE_TYPEs.

Decode an IEEE 754 decimal32 type into a real.

void decode_decimal64	(	const struct real_format *	fmt,
		REAL_VALUE_TYPE *	r,
		const long *	buf
	)

Decode an IEEE 754 decimal64 type into a real.

void encode_decimal128	(	const struct real_format *	fmt,
		long *	buf,
		const REAL_VALUE_TYPE *	r
	)

Encode a real into an IEEE 754 decimal128 type.

void encode_decimal32	(	const struct real_format *	fmt,
		long *	buf,
		const REAL_VALUE_TYPE *	r
	)

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see http://www.gnu.org/licenses/. Encode REAL_VALUE_TYPEs into 32/64/128-bit IEEE 754 encoded values.

Encode a real into an IEEE 754 decimal32 type.

void encode_decimal64	(	const struct real_format *	fmt,
		long *	buf,
		const REAL_VALUE_TYPE *	r
	)

Encode a real into an IEEE 754 decimal64 type.

Referenced by decode_vax_d().

Functions

Function Documentation