wcstoul

unsigned long wcstoul ( const wchar_t *  nptr, wchar_t **  endptr, int  base  ) Definition at line 13 of file wcstoul.c. Referenced by convertHexCSVToHex(), ATL::CRegObject::do_process_key(), do_reg_operation(), getDataType(), GetDeviceLocationString(), GetTimeZoneListIndex(), GetULONG(), ParseCmdline(), ProcessDisplayRegistry(), and SetConsoleCodePage(). { const wchar_t *s = nptr; unsigned long acc; int c; unsigned long cutoff; int neg = 0, any, cutlim; /* * See strtol for comments as to the logic used. */ do { c = *s++; } while (iswctype(c, _SPACE)); if (c == L'-') { neg = 1; c = *s++; } else if (c == L'+') c = *s++; if ((base == 0 || base == 16) && c == L'0' && (*s == L'x' || *s == L'X')) { c = s[1]; s += 2; base = 16; } if (base == 0) base = c == L'0' ? 8 : 10; cutoff = (unsigned long)ULONG_MAX / (unsigned long)base; cutlim = (unsigned long)ULONG_MAX % (unsigned long)base; for (acc = 0, any = 0;; c = *s++) { if (iswctype(c, _DIGIT)) c -= L'0'; else if (iswctype(c, _ALPHA)) c -= iswctype(c, _UPPER) ? L'A' - 10 : L'a' - 10; else break; if (c >= base) break; if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) any = -1; else { any = 1; acc *= base; acc += c; } } if (any < 0) { acc = ULONG_MAX; } else if (neg) acc = 0-acc; if (endptr != 0) *endptr = any ? (wchar_t *)((size_t)(s - 1)) : (wchar_t *)((size_t)nptr); return acc; }