NAME

       g2_unpack2.c - Unpack Section 2 (Local Use Section) of a GRIB2 message.

SYNOPSIS

       #include 'grib2_int.h'
       #include <stdio.h>
       #include <stdlib.h>

   Functions
       g2int g2_unpack2 (unsigned char *cgrib, g2int *iofst, g2int *lencsec2, unsigned char **csec2)
           Unpack Section 2 (Local Use Section) of a GRIB2 message.

Detailed Description

       Unpack Section 2 (Local Use Section) of a GRIB2 message.

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition in file g2_unpack2.c.

Function Documentation

   g2int g2_unpack2 (unsigned char * cgrib, g2int * iofst, g2int * lencsec2, unsigned char ** csec2)
       Unpack Section 2 (Local Use Section) of a GRIB2 message.

   Program History Log
       Date   Programmer   Comments    2002-10-31   Gilbert   Initial    2008-12-23   Wesley   Initialize
       lencsec2 Length of Local Use data    2010-08-05   Vuong   If section 2 has zero length, ierr=0

       Parameters
           cgrib char array containing Section 2 of the GRIB2 message.
           iofst Pointer that contains the bit offset for the beginning of Section 2 in cgrib. The modified
           version will be returned.
           lencsec2 Length (in octets) of Local Use data.
           csec2 Pointer to a pointer that will get an allocated array containing local use data. This memory
           must be freed by the caller.

       Returns

           • G2_NO_ERROR No error.

           • G2_UNPACK_BAD_SEC Array passed had incorrect section number.

           • G2_UNPACK_NO_MEM Memory allocation error.

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition at line 37 of file g2_unpack2.c.

       References G2_NO_ERROR, G2_UNPACK_BAD_SEC, G2_UNPACK_NO_MEM, and gbit().

       Referenced by g2_getfld().

Author

       Generated automatically by Doxygen for NCEPLIBS-g2c from the source code.

NCEPLIBS-g2c                                      Version 2.1.0                                  g2_unpack2.c(3)