Ada Programming/Pragmas/Export

Pragmas Export __TOC__ Summary The pragma Export directs the compiler to make available subprograms or data objects written in Ada to foreign computer languages. If a subprogram is exported, it is compiled with conventions expected by the foreign language. For example, if a subprogram is being exported to C, record types declared in the subprogram are compiled the same as C-style structs. The set of supported foreign languages depends on the compiler implementation. Typically C, C++, Cobol, and Fortran are supported. Example C file int main() { int My_Int; adainit(); Zoiks! C is using an Ada function! My_Int = My_Ada_Function(); adafinal(); return 0; } Ada File function My_Ada_Function return Integer is begin return 1; end My_Ada_Function; Export (Convention => C, Entity => My_Ada_Function, External_Name => "My_Ada_Function" ); See also Wikibook Ada Programming Ada Programming/Pragmas Ada Programming/Pragmas/Import Ada Programming/Pragmas/Convention Ada Programming/Pragmas/Linker_Options Ada Programming/Pragmas/External (implementation defined) Export Export Export