deps: Intl: Check in "small-icu" 57.1

* this commit has "small" ICU 57.1.
See other related commit for tools to generate this commit.

Fixes: https://github.com/nodejs/node/issues/3476
PR-URL: https://github.com/nodejs/node/pull/6088
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/deps/icu-small/source/common/cstr.h b/deps/icu-small/source/common/cstr.h
new file mode 100644
index 0000000000..f17d8a6ab7
--- /dev/null
+++ b/deps/icu-small/source/common/cstr.h
@@ -0,0 +1,55 @@
+/*
+******************************************************************************
+*
+*   Copyright (C) 2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File: cstr.h
+*/
+
+#ifndef CSTR_H
+#define CSTR_H
+
+#include "unicode/unistr.h"
+#include "unicode/uobject.h"
+#include "unicode/utypes.h"
+
+#include "charstr.h"
+
+/**
+ * ICU-internal class CStr, a small helper class to facilitate passing UnicodStrings
+ * to functions needing (const char *) strings, such as printf().
+ *
+ * It is intended primarily for use in debugging or in tests. Uses platform
+ * default code page conversion, which will do the best job possible,
+ * but may be lossy, depending on the platform.
+ *
+ * Example Usage:
+ *   UnicodeString s = whatever;
+ *   printf("%s", CStr(s)());
+ *
+ *   The explicit call to the CStr() constructor creates a temporary object.
+ *   Operator () on the temporary object returns a (const char *) pointer.
+ *   The lifetime of the (const char *) data is that of the temporary object,
+ *   which works well when passing it as a parameter to another function, such as printf.
+ */
+
+U_NAMESPACE_BEGIN
+
+class U_COMMON_API CStr : public UMemory {
+  public:
+    CStr(const UnicodeString &in);
+    ~CStr();
+    const char * operator ()() const;
+
+  private:
+    CharString s;
+    CStr(const CStr &other);               //  Forbid copying of this class.
+    CStr &operator =(const CStr &other);   //  Forbid assignment.
+};
+
+U_NAMESPACE_END
+
+#endif