map WEOF to undefined rather than the control char category

Fixes https://cygwin.com/ml/cygwin/2018-12/msg00173.html
2019-01-12 11:57:59 +01:00 · 2019-01-12 11:57:59 +01:00 · 30062d409d
parent 9d13a2995c
commit 30062d409d
1 changed files with 1 additions and 1 deletions
--- a/newlib/libc/ctype/categories.c
+++ b/newlib/libc/ctype/categories.c
@ -19,7 +19,7 @@ bisearch_cat(wint_t ucs, const struct _category *table, int max)
  int mid;

  if (ucs < table[0].first || ucs > table[max].first + table[max].delta)
-    return 0;
+    return -1;
  while (max >= min)
    {
      mid = (min + max) / 2;