HPL_abort(3)

💖 HPL_abort(3) — the "we're done here bestie" function 💖

okay so real talk, this is a page from the HPL Library Functions manual, section 3, and it's about the one function that has zero chill: HPL_abort. she halts execution. that's it. that's the whole personality. 👑

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✨ NAME ✨

HPL_abort — halts execution. like, immediately. no goodbye tour, no packing up her stuff. just done. 💀

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🎀 SYNOPSIS 🎀

#include "hpl.h"

void HPL_abort( int LINE, const char * SRNAME, const char * FORM, ...
);

yes bestie that's a variadic function, she takes whatever you throw at her. icon behaviour fr fr ✨

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🌸 DESCRIPTION 🌸

so here's the vibe: HPL_abort displays an error message on stderr and then halts execution. that's it. she prints, she dips. 💅

not me writing an error handler that has main character energy and then literally ends the whole program. the AUDACITY. but also? valid. when something goes catastrophically wrong in your linear algebra, sometimes you just gotta pull the plug. 🫶

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🦋 ARGUMENTS 🦋

• LINE — (local input) int — on entry, LINE specifies the line number in the file where the error has occured. and listen, if LINE is not a positive line number, it gets ignored. so like, no pressure to be accurate, she's not gonna fight you about it. 🙈
• SRNAME — (local input) const char * — on entry, SRNAME should be the name of the routine calling this error handler. basically: whose fault is this. name names. 📢
• FORM — (local input) const char * — on entry, FORM specifies the format, i.e., how the subsequent arguments are converted for output. same energy as your classic printf format string, iykyk. ✨
• ... — (local input) — on entry, ... is the list of arguments to be printed within the format string. the little extras, the supporting cast, the entourage. 🧚

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🌈 EXAMPLE 🌈

here's the whole thing in action, look at her go:

#include "hpl.h"

int main(int argc, char *argv[])
{
   HPL_abort( __LINE__, __FILE__, "Halt.\n" );
   exit(0); return(0);
}

__LINE__ and __FILE__ doing the absolute most here, telling her exactly where it all went down. and then "Halt.\n" — a whole dramatic mic drop — because yeah, we're halting. 🎤💥

lowkey note: that exit(0) after HPL_abort is never gonna run. she already halted execution. the code below is just vibes. 😭

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💜 SEE ALSO 💜

• HPL_fprintf (3) — when you want to print without the whole dramatic ending.
• HPL_warn (3) — when you want to yell at someone but let them keep living.

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and that's the whole page bestie, every flag, every argument, every line — nothing skipped, nothing invented, we ate and left no crumbs 🍓✨

this has been HPL 2.2, dated February 24, 2016 — shoutout to the HPL girlies who wrote this back in the day, mwah, thank you for your service 💖🎀