Only Certain C Library Functions Have an Intrinsic Form

ID Number: Q44389

5.10 | 5.10

MS-DOS | OS/2

Summary:

The /Oi compiler option generates intrinsic functions instead of

function calls only for specified run-time library functions. It does

not generate intrinsic functions for all run-time library functions or

for application program functions.

To approximate intrinsic functions with application code, use the

#define directive or the /D compiler option to define a macro.

For more information on the /Oi option and the list of functions

having intrinsic forms, refer to the "Microsoft C 5.1 Optimizing

Compiler User's Guide," Pages 93-94, and the C 5.10 README.DOC, "Part

2: Notes for the 'Microsoft C Optimizing Compiler User's Guide.'"