g2_unpack5.c(3)

💖 g2_unpack5.c — Library Functions Manual 💖

okay bestie, we're looking at g2_unpack5.c(3) from the Library Functions Manual and honestly? it's giving "small file, big job" energy. it unpacks Section 5, aka the Data Representation Section, of a GRIB2 message. let's get into it ✨

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🌸 NAME 🌸

g2_unpack5.c — Unpack Section 5 (Data Representation Section) of a GRIB2 message.

like. that's the whole thing. she does one thing and she does it well 💅

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🎀 SYNOPSIS 🎀

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

✨ Functions ✨

• g2int g2_unpack5 (unsigned char *cgrib, g2int *iofst, g2int *ndpts, g2int *idrsnum, g2int **idrstmpl, g2int *mapdrslen) — Unpack Section 5 (Data Representation Section) of a GRIB2 message.

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🦋 Detailed Description 🦋

Unpack Section 5 (Data Representation Section) of a GRIB2 message.

no cap, that's the entire description. she's a specialist 🫶

Author Stephen Gilbert

Date 2002-10-31

Definition in file g2_unpack5.c.

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👑 Function Documentation 👑

🌈 g2int g2_unpack5 (unsigned char * cgrib, g2int * iofst, g2int * ndpts, g2int * idrsnum, g2int ** idrstmpl, g2int * mapdrslen) 🌈

Unpack Section 5 (Data Representation Section) of a GRIB2 message.

💜 Program History Log 💜

• Date 2002-10-31 — Programmer Gilbert — Comments Initial
• Date 2009-01-14 — Programmer Vuong — Comments Changed structure name template to gtemplate

(the way the structure name got a glow-up in 2009... iconic behavior fr fr)

🍓 Parameters 🍓

• cgrib — char array containing Section 5 of the GRIB2 message.
• iofst — Bit offset for the beginning of Section 5 in cgrib. Returned with bit offset at the end of Section 5.
• ndpts — Number of data points unpacked and returned.
• idrsnum — Data Representation Template Number (see Code Table 5.0).
• idrstmpl — Pointer to an integer array containing the data values for the specified Data Representation Template (N=idrsnum). Each element of this integer array contains an entry (in the order specified) of Data Representation Template 5.N.
• mapdrslen — Number of elements in idrstmpl. i.e. number of entries in Data Representation Template 5.N (N=idrsnum).

⭐ Returns ⭐

• G2_NO_ERROR — No error. (the dream scenario, we love to see it 💖)
• G2_UNPACK_BAD_SEC — Array passed had incorrect section number.
• G2_UNPACK_NO_MEM — Memory allocation error.
• G2_UNPACK5_BAD_DRT — "GRIB" message contains an undefined Data Representation Template.

heads up bestie: those last three are the "something went wrong" girlies. if you get one of them, it's not a vibe, it's a bug report 😭

Author Stephen Gilbert

Date 2002-10-31

Definition at line 40 of file g2_unpack5.c.

References gtemplate::ext, extdrstemplate(), gtemplate::extlen, G2_NO_ERROR, G2_UNPACK5_BAD_DRT, G2_UNPACK_BAD_SEC, G2_UNPACK_NO_MEM, gbit(), getdrstemplate(), gtemplate::map, gtemplate::maplen, and gtemplate::needext.

Referenced by g2_getfld().

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💅 Author 💅

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

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and that's the whole page, bestie!! 🎀 this is NCEPLIBS-g2c, Version 2.3.0, and we're out here reading g2_unpack5.c(3) — go unpack some data representation, you absolute main character 👑✨🦋