STRREV(3pub)

💖 STRREV(3pub) 💖

okay bestie, welcome to the C Programmer's Manual, section 3pub — this is the publib corner of the library, and today's main character is a little function called strrev ✨

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🌸 NAME 🌸

strrev — flips a string around, right there in place, no copy, no drama 💅

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🦋 SYNOPSIS 🦋

#include <publib.h>
char *strrev(char *str);

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✨ DESCRIPTION ✨

so strrev reverses the string you hand it, and it does it in place — meaning it literally swaps the *i*th character counting from the front with the *i*th character counting from the back. no new buffer, no sneaky allocation, just vibes and swaps 🫶

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👑 RETURN VALUE 👑

strrev returns its argument. that's it, that's the whole return. it gives you back the same pointer you gave it, but now the string is backwards 😭 iconic behaviour honestly

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🎀 EXAMPLE 🎀

say you wanted to reverse "dlrow, elloh" — you'd do it like this:

char str[] = "dlrow, elloh";

puts(strrev(str));

and this would output "hello, world" 🌈

⚠️ heads up bestie: using a string literal as the argument would be an error, because it is not allowable to modify string literals. like, do not do that. she will not survive it 💀

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💀 BUGS 💀

okay so the tea: strrev does not automatically detect palindromes, and it also does not automatically return without doing anything. so if you were hoping for a lil self-aware function that goes "omg this is already the same backwards, I'll just chill" — nope. she does not do that. not in her skill set 🙈

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🔥 SEE ALSO 🔥

• publib(3)
• memrev(3)

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💜 AUTHOR 💜

Lars Wirzenius (lars.wirzenius@helsinki.fi)

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and that's the whole page, bestie!! 🎀 this was STRREV(3pub) from the Publib collection, chillin' in the C Programmer's Manual — mwah, go reverse something responsibly, ily 💖✨🦋