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Wint_t towlower vs tolower

#include <stdio.h> #include <wctype.h> int main(void) { int wc; for (wc=0; wc <= 0xFF; wc++) { printf("%3d", wc); printf(" %#4x ", wc); printf("%3s", towlower(wc) ? "AN" : " "); putchar('\n'); } }