g2_unpack4.c(3)

📦
version 2.3.0 · 2 versions
, in ubuntu resolute, ubuntu stonking

💖 g2_unpack4.c — bestie edition 💖

okay so real talk: this is the g2_unpack4.c manual page, from the Library Functions Manual crew. It lives in NCEPLIBS-g2c, and it's all about cracking open Section 4 of a GRIB2 message. let's get into it 🫶

✨ NAME ✨

g2_unpack4.c — Unpack Section 4 (Product Definition Section) of a GRIB2 message.

like... that's the whole job. she unpacks. she's a product definition girlie. periodt. 💅

🎀 SYNOPSIS 🎀

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

🦋 Functions 🦋

g2int g2_unpack4 (unsigned char *cgrib, g2int *iofst, g2int *ipdsnum,
    g2int **ipdstmpl, g2int *mappdslen, float **coordlist, g2int
    *numcoord)
Unpack Section 4 (Product Definition Section) of a GRIB2 message.

that's her. that's the function. the main character, fr fr 👑

💜 DETAILED DESCRIPTION 💜

Unpack Section 4 (Product Definition Section) of a GRIB2 message.

like, that's it, that's the vibe. no notes. 🌸

Author

Stephen Gilbert

Date

2002-10-31

Definition in file

g2_unpack4.c

👑 FUNCTION DOCUMENTATION 👑

🌈 g2int g2_unpack4 ( unsigned char * cgrib, g2int * iofst, g2int * ipdsnum, g2int ** ipdstmpl, g2int * mappdslen, float ** coordlist, g2int * numcoord ) 🌈

Unpack Section 4 (Product Definition Section) of a GRIB2 message.

ngl she does exactly what it says on the tin and she does it flawlessly.

📜 Program History Log 📜

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

glow-up timeline, honestly. ✨

🍓 Parameters 🍓

  • cgrib — Array containing Section 4 of the GRIB2 message.
  • iofst — Bit offset of the beginning of Section 4 in cgrib. Returned with updated bit offset. (she comes back changed, bestie 💫)
  • ipdsnum — Product Definition Template Number (see Table 4.0).
  • ipdstmpl — Pointer that gets an integer array containing the data values for the Product Definition Template specified by ipdsnum.
  • mappdslen — Number of elements in ipdstmpl — i.e. number of entries in Product Defintion Template specified by ipdsnum.
  • coordlist — Pointer that gets an array containing floating point values intended to document the vertical discretisation associated to model data on hybrid coordinate vertical levels.
  • numcoord — number of values in array coordlist.

💀 Returns 💀

  • G2_NO_ERROR — No error. (the dream scenario, we love her 😌)
  • G2_UNPACK_BAD_SEC — Array passed had incorrect section number.
  • G2_UNPACK4_BAD_PDT — message contains an undefined Product Definition Template.
  • G2_UNPACK_NO_MEM — Memory allocation error.
heads up bestie, if you get anything other than G2_NO_ERROR something is not slaying. check that section number and that PDT number. 🙈

Author

Stephen Gilbert

Date

2002-10-31

Definition at line 45 of file

g2_unpack4.c

🔥 References 🔥

gtemplate::ext, gtemplate::extlen, extpdstemplate(), G2_NO_ERROR, G2_UNPACK4_BAD_PDT, G2_UNPACK_BAD_SEC, G2_UNPACK_NO_MEM, gbit(), gbits(), getpdstemplate(), gtemplate::map, gtemplate::maplen, gtemplate::needext, and rdieee().

she's got a whole friend group, iykyk 🫶

Referenced by

g2_getfld()

🌸 AUTHOR 🌸

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

💌 and that's the whole page!! huge thanks to NCEPLIBS-g2c, Version 2.3.0, for bringing us this absolute icon. go unpack some product definition sections, bestie, you got this 💖🎀✨🦋🌸💅👑🌈⭐🍓🧚💜
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