1 files changed, 27 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/btowc.c b/newlib/libc/stdlib/btowc.c
new file mode 100644
index 000000000..a1ea920ef
--- /dev/null
+++ b/newlib/libc/stdlib/btowc.c
@@ -0,0 +1,27 @@
+#include <wchar.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <reent.h>
+
+wint_t
+btowc (int c)
+{
+  mbstate_t mbs;
+  int retval = 0;
+  wchar_t pwc;
+  unsigned char b;
+
+  b = (unsigned char)c;
+
+  /* Put mbs in initial state. */
+  memset (&mbs, '\0', sizeof (mbs));
+
+  _REENT_CHECK_MISC(_REENT);
+
+  retval = _mbtowc_r (_REENT, &pwc, &b, 1, &mbs);
+
+  if (c == EOF || retval != 1)
+    return WEOF;
+  else
+    return (wint_t)pwc;
+}