29 #if U_IOSTREAM_SOURCE >= 199711
57 #elif U_IOSTREAM_SOURCE >= 198506
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
#define U_IO_API
Set to export library symbols from inside the ustdio library, and to import them from outside...