The Alpha edition of Visual C++ supports the following Microsoft C intrinsic functions:
| _ _alloca | _ _lrotl | memcmp | strcpy |
| abs | _ _lrotr | memcpy | strlen |
| fabs | _ _rotl | memset | |
| labs | _ _rotr | strcmp |
Note that the _ _inp and _ _outp intrinsics are specific to x86 and are not supported by standard library functions.
For the remaining Microsoft C intrinsic functions, the Alpha compiler generates normal external calls to the standard library functions regardless of whether the intrinsic forms are enabled by command-line options or pragmas.