From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001 From: Kacper Date: Sun, 7 Dec 2025 20:10:31 +0100 Subject: Add build system scaffolding and libc headers --- lib/libc/wctype/iswalpha.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 lib/libc/wctype/iswalpha.c (limited to 'lib/libc/wctype/iswalpha.c') diff --git a/lib/libc/wctype/iswalpha.c b/lib/libc/wctype/iswalpha.c new file mode 100644 index 00000000..17c8508c --- /dev/null +++ b/lib/libc/wctype/iswalpha.c @@ -0,0 +1,22 @@ +#include +#include + +int iswalpha(wint_t wc) +{ + const unsigned char t[] = { +#include <__alpha.h> + }; + + if (wc < 0x20000U) + return (t[t[wc >> 8] * 32 + ((wc & 255) >> 3)] >> (wc & 7)) & 1; + + if (wc < 0x2fffeU) + return 1; + + return 0; +} + +weak int iswalpha_l(wint_t wc, locale_t unused locale) +{ + return iswalpha(wc); +} -- cgit v1.2.3