| #ifndef OSMOCORE_DEFS_H |
| #define OSMOCORE_DEFS_H |
| |
| /*! \defgroup utils General-purpose utility functions |
| * @{ |
| */ |
| |
| /*! \file defs.h |
| * \brief General definitions that are meant to be included from header files. |
| */ |
| |
| /*! \brief Check for gcc and version. |
| * |
| * \note Albeit glibc provides a features.h file that contains a similar |
| * definition (__GNUC_PREREQ), this definition has been copied from there |
| * to have it available with other libraries, too. |
| * |
| * \return != 0 iff gcc is used and it's version is at least maj.min. |
| */ |
| #if defined __GNUC__ && defined __GNUC_MINOR__ |
| # define OSMO_GNUC_PREREQ(maj, min) \ |
| ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) |
| #else |
| # define OSMO_GNUC_PREREQ(maj, min) 0 |
| #endif |
| |
| /*! \brief Set the deprecated attribute with a message. |
| */ |
| #if defined(__clang__) |
| # define _OSMO_HAS_ATTRIBUTE_DEPRECATED __has_attribute(deprecated) |
| # define _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE __has_extension(attribute_deprecated_with_message) |
| #elif defined(__GNUC__) |
| # define _OSMO_HAS_ATTRIBUTE_DEPRECATED 1 |
| # define _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE OSMO_GNUC_PREREQ(4,5) |
| #endif |
| |
| #if _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE |
| # define OSMO_DEPRECATED(text) __attribute__((__deprecated__(text))) |
| #elif _OSMO_HAS_ATTRIBUTE_DEPRECATED |
| # define OSMO_DEPRECATED(text) __attribute__((__deprecated__)) |
| #else |
| # define OSMO_DEPRECATED(text) |
| #endif |
| |
| #undef _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE |
| #undef _OSMO_HAS_ATTRIBUTE_DEPRECATED |
| |
| /*! @} */ |
| |
| #endif |