NAME

       g2_unpack6.c - Unpack Section 6 (Bit-Map Section) as defined in GRIB Edition 2.

SYNOPSIS

       #include <stdio.h>
       #include <stdlib.h>
       #include 'grib2.h'

   Functions
       g2int g2_unpack6 (unsigned char *cgrib, g2int *iofst, g2int ngpts, g2int *ibmap, g2int
           **bmap)
           This subroutine unpacks Section 6 (Bit-Map Section) as defined in GRIB Edition 2.

Detailed Description

       Unpack Section 6 (Bit-Map Section) as defined in GRIB Edition 2.

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition in file g2_unpack6.c.

Function Documentation

   g2int g2_unpack6 (unsigned char * cgrib, g2int * iofst, g2int ngpts, g2int * ibmap, g2int **
       bmap)
       This subroutine unpacks Section 6 (Bit-Map Section) as defined in GRIB Edition 2.

       Parameters
           cgrib char array containing Section 6 of the GRIB2 message.
           iofst Bit offset of the beginning of Section 6 in cgrib.
           ngpts Number of grid points specified in the bit-map
           ibmap Bitmap indicator (see Code Table 6.0)

           • 0 bitmap applies and is included in Section 6.

           • 1-253 Predefined bitmap applies

           • 254 Previously defined bitmap applies to this field

           • 255 Bit map does not apply to this product.

           bmap Pointer to an integer array containing decoded bitmap. (if ibmap=0)

       Returns

           • 0 no error

           • 2 Not Section 6

           • 4 Unrecognized pre-defined bit-map.

           • 6 memory allocation error

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition at line 33 of file g2_unpack6.c.

       References gbit(), and gbits().

       Referenced by g2_getfld().

Author

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