Implement wctomb(3) for ltrace.
This is an implementation in the style of the rest: char == byte.
We might want to come back and implement UTF-8, but this is enough for ltrace.
Bug: 13747066
Change-Id: Ib2b63609c9014fdef9a8491e067467c4fc5ae3cc
diff --git a/libc/include/wchar.h b/libc/include/wchar.h
index 32cf127..89c6fb6 100644
--- a/libc/include/wchar.h
+++ b/libc/include/wchar.h
@@ -36,13 +36,6 @@
#include <time.h>
#include <malloc.h>
-/* IMPORTANT: Any code that relies on wide character support is essentially
- * non-portable and/or broken. the only reason this header exist
- * is because I'm really a nice guy. However, I'm not nice enough
- * to provide you with a real implementation. instead wchar_t == char
- * and all wc functions are stubs to their "normal" equivalent...
- */
-
__BEGIN_DECLS
typedef __WINT_TYPE__ wint_t;
@@ -150,12 +143,11 @@
extern size_t wcslcat(wchar_t*, const wchar_t*, size_t);
extern size_t wcslcpy(wchar_t*, const wchar_t*, size_t);
-/* No really supported. These are just for making libstdc++-v3 happy. */
typedef void *wctrans_t;
-extern wint_t towctrans(wint_t, wctrans_t);
-extern wctrans_t wctrans (const char *);
+extern wint_t towctrans(wint_t, wctrans_t);
+extern wctrans_t wctrans(const char*);
-#if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
+#if __POSIX_VISIBLE >= 200809
wchar_t* wcsdup(const wchar_t*);
size_t wcsnlen(const wchar_t*, size_t);
#endif