Library Facilities for JKQTMath

Collaboration diagram for Library Facilities for JKQTMath:

Macros
#define	jkqtmath_LIB_EXPORT   Q_DECL_EXPORT
#define	jkqtmath_LIB_EXPORT_LIBRARY
	is only defined while compiling JKQTMath into JKQTMathSharedLib_XYZ and ensures thet the symbols are exported. If it is not defined (e.g. while compiling an application), the symbols are imported
#define	jkqtmath_LIB_IN_DLL
	declares that the application should link against a shared version of JKQTMath, i.e. JKQTMathSharedLib_XYZ . This needs to be defined while compiling the library and while compiling any application linking against JKQTMathSharedLib_XYZ.

Detailed Description

Macro Definition Documentation

jkqtmath_LIB_EXPORT

#define jkqtmath_LIB_EXPORT   Q_DECL_EXPORT

This define allows to export functions and classes from the jkqtmath-library when building a dynamic/shared library. Usage is as follows:

#include "jkqtmath_imexport/jkqtmath_imexport.h"
 
class jkqtmath_LIB_EXPORT exportedClassName {
   ...
};
 
jkqtmath_LIB_EXPORT void exportedFunctionName();

These macros append the appropriate Q_DECL_EXPORT and Q_DECL_IMPORT to the function/class body and thus tell windows compilers to export these sysmbols from the shared library, or import them from a shared library.

Note that these attributes are only necessary on windows systems!

These macros are controlled by two other macros:

• jkqtmath_LIB_IN_DLL declares that the application should link against a shared version of JKQTMath, i.e. JKQTMathSharedLib_XYZ . This needs to be defined while compiling the library and while compiling any application linking against JKQTMathSharedLib_XYZ.
• jkqtmath_LIB_EXPORT_LIBRARY is only defined while compiling JKQTMath into JKQTMathSharedLib_XYZ and ensures thet the symbols are exported. If it is not defined (e.g. while compiling an application), the symbols are imported .
  

jkqtmath_LIB_EXPORT_LIBRARY

#define jkqtmath_LIB_EXPORT_LIBRARY

is only defined while compiling JKQTMath into JKQTMathSharedLib_XYZ and ensures thet the symbols are exported. If it is not defined (e.g. while compiling an application), the symbols are imported

jkqtmath_LIB_IN_DLL

#define jkqtmath_LIB_IN_DLL

declares that the application should link against a shared version of JKQTMath, i.e. JKQTMathSharedLib_XYZ . This needs to be defined while compiling the library and while compiling any application linking against JKQTMathSharedLib_XYZ.