Reorganize _LIBCPP_LOCALE__L_EXTENSIONS
Instead of checking _LIBCPP_LOCALE_L_EXTENSIONS all over, instead check it
once, and define the various *_l symbols once. The private redirector symbol
names are all prefixed with _libcpp_* so that they won't conflict with user
symbols, and so they won't conflict with future C library symbols. In
particular, glibc likes providing private symbols such as __locale_t, so we
should follow a different naming pattern (like _libcpp_*) to avoid problems
on that front.
Tested on Linux with glibc. Hoping for the best on OSX and the various BSDs.
http://reviews.llvm.org/D17456
llvm-svn: 263016
diff --git a/libcxx/include/__bsd_locale_defaults.h b/libcxx/include/__bsd_locale_defaults.h
new file mode 100644
index 0000000..f315ca2
--- /dev/null
+++ b/libcxx/include/__bsd_locale_defaults.h
@@ -0,0 +1,33 @@
+// -*- C++ -*-
+//===---------------------- __bsd_locale_defaults.h -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// The BSDs have lots of *_l functions. We don't want to define those symbols
+// on other platforms though, for fear of conflicts with user code. So here,
+// we will define the mapping from an internal macro to the real BSD symbol.
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_BSD_LOCALE_DEFAULTS_H
+#define _LIBCPP_BSD_LOCALE_DEFAULTS_H
+
+#define __libcpp_mb_cur_max_l(loc) MB_CUR_MAX_L(loc)
+#define __libcpp_btowc_l(ch, loc) btowc_l(ch, loc)
+#define __libcpp_wctob_l(wch, loc) wctob_l(wch, loc)
+#define __libcpp_wcsnrtombs_l(dst, src, nwc, len, ps, loc) wcsnrtombs_l(dst, src, nwc, len, ps, loc)
+#define __libcpp_wcrtomb_l(src, wc, ps, loc) wcrtomb_l(src, wc, ps, loc)
+#define __libcpp_mbsnrtowcs_l(dst, src, nms, len, ps, loc) mbsnrtowcs_l(dst, src, nms, len, ps, loc)
+#define __libcpp_mbrtowc_l(pwc, s, n, ps, l) mbrtowc_l(pwc, s, n, ps, l)
+#define __libcpp_mbtowc_l(pwc, pmb, max, l) mbtowc_l(pwc, pmb, max, l)
+#define __libcpp_mbrlen_l(s, n, ps, l) mbrlen_l(s, n, ps, l)
+#define __libcpp_localeconv_l(l) localeconv_l(l)
+#define __libcpp_mbsrtowcs_l(dest, src, len, ps, l) mbsrtowcs_l(dest, src, len, ps, l)
+#define __libcpp_snprintf_l(...) snprintf_l(__VA_ARGS__)
+#define __libcpp_asprintf_l(...) asprintf_l(__VA_ARGS__)
+#define __libcpp_sscanf_l(...) sscanf_l(__VA_ARGS__)
+
+#endif // _LIBCPP_BSD_LOCALE_DEFAULTS_H