/usr/include/dune/common/visibility.hh is in libdune-common-dev 2.4.1-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_COMMON_VISIBILITY_HH
#define DUNE_COMMON_VISIBILITY_HH
/** \file
* \brief Definition of macros controlling symbol visibility at the ABI level.
*/
#ifdef DOXYGEN
//! Export a symbol as part of the public ABI.
/**
* Mark a class, function or static variable as visible outside the current DSO.
* For now, this is mostly important for templated global variables and functions
* that contain static variables.
*/
#define DUNE_EXPORT implementation_defined
//! Mark a symbol as being for internal use within the current DSO only.
/**
* Mark a class, function or static variable as inaccessible from outside the current DSO.
* Doing so will decrease the size of the symbol table, but you have to be sure that the
* symbol will never have to be accessed from another library or the main executable!
*/
#define DUNE_PRIVATE implementation_defined
#else // DOXYGEN
#if __GNUC__ >= 4
// GCC and Clang both define __GNUC__ to 4 and they both support the visibility
// attribute
#define DUNE_EXPORT __attribute__((visibility("default")))
#define DUNE_PRIVATE __attribute__((visibility("hidden")))
#else
// We don't know about the active compiler, so just turn the visibility macros to no-ops.
#define DUNE_EXPORT
#define DUNE_PRIVATE
#endif
#endif // DOXYGEN
#endif // DUNE_COMMON_VISIBILITY
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