.TH "g2_unpack1.c" 3 "Tue May 3 2022" "Version 1.6.4" "NCEPLIBS-g2c" \" -*- nroff -*-
.ad l
.nh
.SH NAME
g2_unpack1.c \- Unpack Section 1 (Identification Section) as defined in GRIB Edition 2\&.  

.SH SYNOPSIS
.br
.PP
\fC#include <stdio\&.h>\fP
.br
\fC#include <stdlib\&.h>\fP
.br
\fC#include 'grib2\&.h'\fP
.br

.SS "Functions"

.in +1c
.ti -1c
.RI "\fBg2int\fP \fBg2_unpack1\fP (unsigned char *cgrib, \fBg2int\fP *iofst, \fBg2int\fP **ids, \fBg2int\fP *idslen)"
.br
.RI "This subroutine unpacks Section 1 (Identification Section) as defined in GRIB Edition 2\&. "
.in -1c
.SH "Detailed Description"
.PP 
Unpack Section 1 (Identification Section) as defined in GRIB Edition 2\&. 


.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
.PP
\fBDate\fP
.RS 4
2002-10-29 
.RE
.PP

.PP
Definition in file \fBg2_unpack1\&.c\fP\&.
.SH "Function Documentation"
.PP 
.SS "\fBg2int\fP g2_unpack1 (unsigned char * cgrib, \fBg2int\fP * iofst, \fBg2int\fP ** ids, \fBg2int\fP * idslen)"

.PP
This subroutine unpacks Section 1 (Identification Section) as defined in GRIB Edition 2\&. 
.PP
\fBParameters\fP
.RS 4
\fIcgrib\fP char array containing Section 1 of the GRIB2 message\&. 
.br
\fIiofst\fP Bit offset for the beginning of Section 1 in cgrib\&. 
.br
\fIids\fP address of pointer to integer array containing information read from Section 1, the Identification section\&.
.IP "\(bu" 2
ids[0] Identification of originating Centre (see Common Code Table C-1)\&.
.IP "\(bu" 2
ids[1] Identification of originating Sub-centre\&.
.IP "\(bu" 2
ids[2] GRIB Master Tables Version Number (see Code Table 1\&.0)\&.
.IP "\(bu" 2
ids[3] GRIB Local Tables Version Number (see Code Table 1\&.1)\&.
.IP "\(bu" 2
ids[4] Significance of Reference Time (Code Table 1\&.2)
.IP "\(bu" 2
ids[5] Year ( 4 digits )
.IP "\(bu" 2
ids[6] Month
.IP "\(bu" 2
ids[7] Day
.IP "\(bu" 2
ids[8] Hour
.IP "\(bu" 2
ids[9] Minute
.IP "\(bu" 2
ids[10] Second
.IP "\(bu" 2
ids[11] Production status of processed data (see Code Table 1\&.3)\&.
.IP "\(bu" 2
ids[12] Type of processed data (see Code Table 1\&.4)\&. 
.PP
.br
\fIidslen\fP Number of elements in ids\&.
.RE
.PP
\fBReturns\fP
.RS 4
.IP "\(bu" 2
0 no error
.IP "\(bu" 2
2 Array passed is not section 1
.IP "\(bu" 2
6 memory allocation error
.PP
.RE
.PP
\fBAuthor\fP
.RS 4
Stephen Gilbert 
.RE
.PP
\fBDate\fP
.RS 4
2002-10-29 
.RE
.PP

.PP
Definition at line 44 of file g2_unpack1\&.c\&.
.PP
References gbit()\&.
.PP
Referenced by g2_getfld()\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for NCEPLIBS-g2c from the source code\&.