FUNCTION::ISDIGIT(3stap)

✨ FUNCTION::ISDIGIT 💅

okay so bestie, welcome to the SystemTap Tapset Reference, section 3stap — yes we're in the manual pages, and yes this one is a lil snack 🍓

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🎀 NAME 🎀

function::isdigit — checks for a digit, fr fr 🔢

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🌸 SYNOPSIS 🌸

isdigit:long(str:string)

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🦋 ARGUMENTS 🦋

• str — the string you want to check, bestie. that's the one we're inspecting 👀

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💖 DESCRIPTION 💖

So what it does is: it checks for a digit (0 through 9) as the first character of a string. That's it, that's the whole vibe. ✨

It returns non-zero if that's true (slay, it IS a digit), and a zero if it's false (not me getting a zero 😭).

Heads up bestie: it's looking at the first character, not the whole string. iykyk 👑

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👑 SEE ALSO 👑

• tapset::string(3stap) — go read this one too, it's giving related content 🫶

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and that's the whole page, periodt 💅 tysm for reading, mwah 🎀

sign-off vibes: this was the SystemTap Tapset Reference, and the date on the tin was September 2026 — the version field just says "Ver" and then nothing, so like, iconic mysterious queen behavior, we don't know the number 🙈 but everything else is exactly as it was, no cap 💜