NAME

       g2_unpack6.c - Unpack Section 6 (Bit-Map Section) of a GRIB2 message.

SYNOPSIS

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

   Functions
       g2int g2_unpack6 (unsigned char *cgrib, g2int *iofst, g2int ngpts, g2int *ibmap, g2int **bmap)
           Unpack Section 6 (Bit-Map Section) of a GRIB2 message.

Detailed Description

       Unpack Section 6 (Bit-Map Section) of a GRIB2 message.

       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)
       Unpack Section 6 (Bit-Map Section) of a GRIB2 message.

       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

           • G2_NO_ERROR No error.

           • G2_UNPACK_BAD_SEC Array passed had incorrect section number.

           • G2_UNPACK6_BAD_BITMAP Unrecognized pre-defined bit-map.

           • G2_UNPACK_NO_MEM Memory allocation error.

       Author
           Stephen Gilbert

       Date
           2002-10-31

       Definition at line 32 of file g2_unpack6.c.

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

       Referenced by g2_getfld().

Author

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

NCEPLIBS-g2c                                      Version 2.1.0                                  g2_unpack6.c(3)