C++Builder modifiers

Modifier Use with Description

const1 Variables Prevents changes to object.
volatile1 Variables Prevents register allocation and some optimization. Warns compiler that object might be subject to outside change during evaluation.
__cdecl2 Functions Forces C argument-passing convention. Affects linker and link-time names.
__cdecl2 Variables Forces global identifier case-sensitivity and leading underscores in C.
__pascal Function Forces Pascal argument-passing convention. Affects linker and link- time names.

__pascal Variables Forces global identifier case-insensitivity with no leading underscores in C.
__import Functions/classes Tells the compiler which functions or classes to import.
__export Functions/classes Tells the compiler which functions or classes to export.
__declspec(dllimport) Functions/classes Tells the compiler which functions or classes to import. This is the preferred method.
__declspec(dllexport) Functions/classes Tells the compiler which functions or classes to export. This is the preferred method.

__fastcall Functions Forces register parameter passing convention. Affects the linker and link-time names.
__stdcall Function Forces the standard WIN32 argument-passing convention.

1. C++ extends const and volatile to include classes and member functions.
2. This is the default.