deprecated.h

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#ifndef FCL_DEPRECATED_HH
# define FCL_DEPRECATED_HH

// Define a suffix which can be used to tag a type, a function or a a
// variable as deprecated (i.e. it will emit a warning when using it).
//
// Tagging a function as deprecated:
//  FCL_DEPRECATED void foo ();
//
// Tagging a type as deprecated:
//  FCL_DEPRECATED class Foo {};
//
// Tagging a variable as deprecated:
//  FCL_DEPRECATED int a = 0;
//
// The use of a macro is required as this is /not/ a standardized
// feature of C++ language or preprocessor, even if most of the
// compilers support it.
# ifdef __GNUC__
#  define FCL_DEPRECATED __attribute__ ((deprecated))
# elif defined _MSC_VER
#  define FCL_DEPRECATED __declspec (deprecated)
# elif defined(clang)
#  define FL_DEPRECATED \
  attribute((deprecated("FCL: Use of this method is deprecated")))
# else
// If the compiler is not recognized, drop the feature.
#  define FCL_DEPRECATED /* nothing */
# endif

#endif