pack_ferror(3)

✨ pack_ferror(3) ✨

okay so bestie, welcome to pack_ferror — it's a page from the Allegro manual for the Allegro game programming library, and it's literally just here to answer one question: did something break??? 💖

🎀 NAME 🎀

pack_ferror — tells you if an error happened during an operation on the stream. Allegro game programming library. no cap. 💅

✨ SYNOPSIS ✨

#include <allegro.h>

int pack_ferror(PACKFILE *f);

🦋 DESCRIPTION 🦋

ok so here's the tea ☕ — some functions out there report errors by returning EOF, which is lowkey messy because EOF is also just... the end of the file?? 😭 so you can't tell if the file ended or if everything fell apart.

the way that pack_feof() and pack_ferror() fix this is so iconic: use pack_feof() when you wanna check explicitly for end of file, and use pack_ferror() when you wanna check for errors. 🫶

both of these functions peek at indicators that live inside the internal state of the stream, so they can correctly tell the different situations apart. main character energy fr fr 👑

👑 RETURN VALUE 👑

returns nonzero if the error indicator for the stream is set — meaning an error has occurred during a previous operation on the stream. so like, nonzero = something went 💀, zero = we're chilling. 🌸

🌈 SEE ALSO 🌈

• pack_fopen(3)
• pack_fopen_chunk(3)

kisses bestie, this page was brought to you by Allegro, version 4.4.3, and the letter pack_ferror(3) — mwah, go check your error indicators 💋✨