This really needs to go in a branch. It needs heavy testing and can't coincide with the current shell32 due to PSDK interface changes

svn path=/branches/shell32_new-bringup/; revision=51893

lib/sdk/crt/string/wcstoul.c

@@ -0,0 +1,72 @@
+#include <precomp.h>
+
+
+/*
+ * Convert a unicode string to an unsigned long integer.
+ *
+ * Ignores `locale' stuff.  Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ *
+ * @implemented
+ */
+unsigned long
+wcstoul(const wchar_t *nptr, wchar_t **endptr, int base)
+{
+  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 = -acc;
+  if (endptr != 0)
+    *endptr = any ? (wchar_t *)((size_t)(s - 1)) : (wchar_t *)((size_t)nptr);
+  return acc;
+}