upds3.f File Reference

Read data descriptors from Section 3 of a BUFR message. More...

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Functions/Subroutines
subroutine	upds3 (MBAY, LCDS3, CDS3, NDS3)
	This subroutine returns the sequence of data descriptors contained within Section 3 of a BUFR message. More...

Detailed Description

Read data descriptors from Section 3 of a BUFR message.

Definition in file upds3.f.

Function/Subroutine Documentation

subroutine upds3	(	dimension(*)	MBAY,
			LCDS3,
		character*6, dimension(*)	CDS3,
			NDS3
	)

This subroutine returns the sequence of data descriptors contained within Section 3 of a BUFR message.

Author

J. Ator

Date

2003-11-04

Parameters

[in]	MBAY	- integer(*): BUFR message
[in]	LCDS3	- integer: Dimensioned size of CDS3; used by the subroutine to ensure that it doesn't overflow the CDS3 array
[out]	CDS3	- character*6(*): Data descriptor sequence within Section 3 of MBAY
[out]	NDS3	- integer: Number of data descriptors in CDS3

Remarks

• The start of the BUFR message (i.e. the string 'BUFR') must be aligned on the first 4 bytes of MBAY.
• This subroutine does not recursively resolve any Table D descriptors from within Section 3; rather, what is returned in CDS3 is the exact list of data descriptors as it appears within Section 3 of MBAY.

Program history log:

• 2003-11-04 J. Ator – Original author
• 2004-08-18 J. Ator – Removed IFIRST check, since wrdlen() now keeps track of whether it has been called
• 2005-11-29 J. Ator – Use getlens()
• 2009-03-23 J. Ator – Added LCDS3 argument and check

Definition at line 33 of file upds3.f.

References adn30(), bort(), getlens(), iupb(), and wrdlen().

Referenced by fdebufr(), ireadmt(), and reads3().