GNAT Reference Manual
5. Intrinsic Subprograms
GNAT allows a user application program to write the declaration:
| | pragma Import (Intrinsic, name);
|
providing that the name corresponds to one of the implemented intrinsic
subprograms in GNAT, and that the parameter profile of the referenced
subprogram meets the requirements. This chapter describes the set of
implemented intrinsic subprograms, and the requirements on parameter profiles.
Note that no body is supplied; as with other uses of pragma Import, the
body is supplied elsewhere (in this case by the compiler itself). Note
that any use of this feature is potentially non-portable, since the
Ada standard does not require Ada compilers to implement this feature.
