Version.h

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#pragma once
 
#include <memory>
 
 
namespace Core
{
class LibraryLoader;
class VersionP;
 
class Version
{
public:
    using PFN_LexocadVersion = void (*)(int*, int*, int*, int*);
    using PFN_LexocadVersionPart = int (*)();
    using PFN_LexocadVersionString = const char* (*)();
 
 
    Version(const Version& other) = delete;
    Version& operator=(const Version& other) = delete;
 
    static Version& instance();
    /*
     * NOTE! That the order of declaration of the class members IS very important!
     * Do not screw with this unless you know how the class initialization goes.
     * (ISO/IEC 14882:2003(E) section 12.6.2)
     * On the other hand it will fail in runtime during dll loading... so you will
     * know  :)
     *  - forry
     */
private:
    Version();
    std::unique_ptr<LibraryLoader> lxInfoDLL;
 
    //PFN_LexocadVersion getLexocadVersion;
    PFN_LexocadVersionPart getLexocadVersionMajor;
    PFN_LexocadVersionPart getLexocadVersionMinor;
    PFN_LexocadVersionPart getLexocadVersionPatch;
    PFN_LexocadVersionPart getLexocadVersionRevision;
 
    PFN_LexocadVersionString getLexocadBuildDateTime;
    PFN_LexocadVersionString getLexocadDocumentVersion;
    PFN_LexocadVersionString getLexocadProductVersionStr;
 
public:
    const unsigned major;
    const unsigned minor;
    const unsigned patch;
    const unsigned revision;
 
    const char* buildDateTime;
    const char* document;
    const char* product;
 
};
 
extern LX_CORE_EXPORT Version& version;  // = Version::instance();
}