122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
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#ifndef WHEREAMIPP_HPP_
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#define WHEREAMIPP_HPP_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Returns the path to the current executable.
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*
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* Usage:
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* - first call `int length = wai_getExecutablePath(NULL, 0, NULL);` to
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* retrieve the length of the path
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* - allocate the destination buffer with `path = (char*)malloc(length + 1);`
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* - call `wai_getExecutablePath(path, length, NULL)` again to retrieve the
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* path
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* - add a terminal NUL character with `path[length] = '\0';`
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*
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* @param out destination buffer, optional
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* @param capacity destination buffer capacity
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* @param dirname_length optional recipient for the length of the dirname part
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* of the path.
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*
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* @return the length of the executable path on success (without a terminal NUL
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* character), otherwise `-1`
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*/
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int getExecutablePath( char* out, int capacity, int* dirname_length );
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/**
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* Returns the path to the current module.
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*
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* Usage:
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* - first call `int length = wai_getModulePath(NULL, 0, NULL);` to retrieve
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* the length of the path
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* - allocate the destination buffer with `path = (char*)malloc(length + 1);`
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* - call `wai_getModulePath(path, length, NULL)` again to retrieve the path
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* - add a terminal NUL character with `path[length] = '\0';`
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*
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* @param out destination buffer, optional
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* @param capacity destination buffer capacity
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* @param dirname_length optional recipient for the length of the dirname part
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* of the path.
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*
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* @return the length of the module path on success (without a terminal NUL
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* character), otherwise `-1`
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*/
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int getModulePath( char* out, int capacity, int* dirname_length );
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#ifdef __cplusplus
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}
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#endif
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#if !defined( WHEREAMI_STRING_T )
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#include <string>
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typedef std::string whereami_string_t;
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#else
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typedef WHEREAMI_STRING_T whereami_string_t;
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#endif
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#if !defined( WHEREAMI_DISABLE_OSTREAM )
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#include <ostream>
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#endif
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#if ( defined ( __cplusplus ) && ( __cplusplus > 199711L ) ) || ( defined( _MSC_FULL_VER ) && ( _MSC_FULL_VER >= 150020706 ) )
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#define WHEREAMI_CXX11
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#endif
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#if defined( __GNUC__ )
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#if !( ( __GNUC__ * 100 + __GNUC_MINOR__ ) < 408 )
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#undef WHEREAMI_CXX11
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#endif
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#endif
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namespace whereami {
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class whereami_path_t
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{
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public:
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#if defined( WHEREAMI_CXX11 )
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operator whereami_string_t() &&;
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operator whereami_string_t() const &;
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#else
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operator const whereami_string_t&() const;
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#endif
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whereami_string_t dirname() const;
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whereami_string_t basename() const;
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private:
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whereami_path_t();
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#if defined( WHEREAMI_CXX11 )
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whereami_path_t( whereami_string_t&& path, int dirname_length ) noexcept;
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#else
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whereami_path_t( whereami_string_t& m_path, int m_dirnameLength );
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#endif
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friend whereami_path_t getExecutablePath();
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friend whereami_path_t getModulePath();
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#if !defined( WHEREAMI_DISABLE_OSTREAM )
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friend std::ostream& operator<<( std::ostream& os, const whereami_path_t& m_path );
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#endif
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whereami_string_t m_path;
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int m_dirnameLength;
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}; // class whereami_path_t
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/**
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* Returns the path to the current executable.
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*/
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whereami_path_t getExecutablePath();
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/**
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* Returns the path to the current module.
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*/
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whereami_path_t getModulePath();
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} // namespace whereami
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#endif // #ifndef WHEREAMIPP_H
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