wcstoimax(3)

✨ wcstoimax — bestie, we're converting wide strings to integers ✨

okay so like. <pink>wcstoimax</pink> and <pink>wcstoumax</pink> are literally the moment you need to turn a wide-character string into a big ol' integer. that's the whole vibe. 💖

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📚 LIBRARY

it lives in the Standard C library — link it with -lc, babes. 🎀

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🌸 SYNOPSIS

#include <stddef.h>
#include <inttypes.h>

intmax_t wcstoimax(const wchar_t *restrict nptr,
                   wchar_t **restrict endptr, int base);
uintmax_t wcstoumax(const wchar_t *restrict nptr,
                    wchar_t **restrict endptr, int base);

periodt. that's the whole signature, no notes. 🫶

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💅 DESCRIPTION

no cap, these two are exactly like wcstol(3) and wcstoul(3)… except — and this is the iconique part — they hand you back a value of type intmax_t and uintmax_t respectively. ✨

that's it. that's the tea. same energy, bigger int vibes. 👑

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🦋 ATTRIBUTES

if you're like "bestie what even is this section", go read attributes(7) for the explanation of the terms. 💜

• wcstoimax(), wcstoumax() — thread safety: MT-Safe locale 🌈

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⭐ STANDARDS

• C11
• POSIX.1-2008

both. slay. 💅

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🕰️ HISTORY

• POSIX.1-2001
• C99

she's been around a while and she's still serving. 👑

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👀 SEE ALSO

• imaxabs(3)
• imaxdiv(3)
• strtoimax(3)
• strtoumax(3)
• wcstol(3)
• wcstoul(3)

go read these too, iykyk. 🍓

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mwah 💋 this little explainer came to you straight from Linux man-pages 6.20, dated 2026-02-08 — so yeah, fresh, current, and honestly? iconic. take care of her and she'll take care of your wide strings 🧚💖