balber::BerUtil_FloatingPointImpUtil Struct Reference

#include <balber_berutil.h>

List of all members.

Public Types
typedef BerUtil_IntegerImpUtil	IntegerUtil
typedef BerUtil_LengthImpUtil	LengthUtil
Static Public Member Functions
static int	getFloatValue (float *value, bsl::streambuf *streamBuf, int length)
static int	getDoubleValue (double *value, bsl::streambuf *streamBuf, int length)
static int	getDecimal64Value (bdldfp::Decimal64 *value, bsl::streambuf *streamBuf, int length)
static int	putFloatValue (bsl::streambuf *streamBuf, float value, const BerEncoderOptions *options=0)
static int	putDoubleValue (bsl::streambuf *streamBuf, double value, const BerEncoderOptions *options=0)
static int	putDecimal64Value (bsl::streambuf *streamBuf, bdldfp::Decimal64 value)

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Detailed Description

This component-private utility struct provides a namespace for a suite of functions used by BerUtil to implement BER encoding and decoding operations for floating point number values. Within the definition of this struct:

the specification:
Refers to the August 2015 revision of the ITU-T Recommendation X.690, and

the floating point specification:
Refers to the 2008 revision of the IEE 754 Standard for Floating-Point Arithemtic.

See Component balber_berutil

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Member Typedef Documentation

typedef BerUtil_IntegerImpUtil balber::BerUtil_FloatingPointImpUtil::IntegerUtil

typedef BerUtil_LengthImpUtil balber::BerUtil_FloatingPointImpUtil::LengthUtil

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Member Function Documentation

static int balber::BerUtil_FloatingPointImpUtil::getFloatValue	(	float *	value,
		bsl::streambuf *	streamBuf,
		int	length
	)			[static]

Read the specified length number of bytes from the input sequence of the specified streamBuf and load to the specified value the interpretation of those bytes as the contents octets of a BER-encoded real value according to the specification. Return 0 if successful, and a non-zero value otherwise. The operation succeeds if length bytes are successfully read from the input sequence of the streamBuf without the read position becoming unavailable, and the bytes read contain a valid representation of the contents octets of a real value according to the specification.

static int balber::BerUtil_FloatingPointImpUtil::getDoubleValue	(	double *	value,
		bsl::streambuf *	streamBuf,
		int	length
	)			[static]

Read the specified length number of bytes from the input sequence of the specified streamBuf and load to the specified value the interpretation of those bytes as the contents octets of a BER-encoded real value according to the specification. Return 0 if successful, and a non-zero value otherwise. The operation succeeds if length bytes are successfully read from the input sequence of the streamBuf without the read position becoming unavailable, and the bytes read contain a valid representation of the contents octets of a real value according to the specification.

static int balber::BerUtil_FloatingPointImpUtil::getDecimal64Value	(	bdldfp::Decimal64 *	value,
		bsl::streambuf *	streamBuf,
		int	length
	)			[static]

Read the specified length number of bytes from the input sequence of the specified streamBuf and load to the specified value the interpretation of those bytes as the contents octets of an encoded 64-bit decimal value. Return 0 if successful, and a non-zero value otherwise. The operation succeeds if length bytes are successfully read from the input sequence of the streamBuf without the read position becoming unavailable, and the bytes read contain a valid representation of the contents octets of an encoded 64-bit decimal value. See the package-level documentation of balber for the definition of the format used to encode 64-bit decimal values.

static int balber::BerUtil_FloatingPointImpUtil::putFloatValue	(	bsl::streambuf *	streamBuf,
		float	value,
		const BerEncoderOptions *	options = 0
	)			[static]

Write the length and contents octets of the BER encoding of the specified real value (as defined in the specification) to the output sequence of the specified streamBuf. Optionally specify options, which will indicate whether -0.0f will be preserved or encoded as +0.0f. Return 0 if successful, and a non-zero value otherwise. The operation succeeds if all bytes corresponding to the length and contents octets are written to the streamBuf without the write position becoming unavailable.

static int balber::BerUtil_FloatingPointImpUtil::putDoubleValue	(	bsl::streambuf *	streamBuf,
		double	value,
		const BerEncoderOptions *	options = 0
	)			[static]

Write the length and contents octets of the BER encoding of the specified real value (as defined in the specification) to the output sequence of the specified streamBuf. Optionally specify options, which will indicate whether -0.0 will be preserved or encoded as +0.0. Return 0 if successful, and a non-zero value otherwise. The operation succeeds if all bytes corresponding to the length and contents octets are written to the streamBuf without the write position becoming unavailable.

static int balber::BerUtil_FloatingPointImpUtil::putDecimal64Value	(	bsl::streambuf *	streamBuf,
		bdldfp::Decimal64	value
	)			[static]

Write the length and contents octets of the encoding of the BER encoding of the specified value to the output sequence of the specified streamBuf. Return 0 if successful, and a non-zero value otherwise. The operation succeeds if all bytes corresponding to the length and contents octets are written to the streamBuf without the write position becoming unavailable. See the package-level documentation of balber for the definition of the format used to encode 64-bit decimal values.

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The documentation for this struct was generated from the following file:

• balber_berutil.h