Checkreservedname - Texas Instruments TI-89 Developer's Manual

Appendix A: System Routines — Variable Name Utilities

CheckReservedName

Declaration: WORD CheckReservedName (BYTE * TokName )
Category(ies): Variable Name Utilities
Description: Check for graph functions and other special names and return the type of
the variable passed or zero otherwise. Note that this routine works the
same as CheckSysFunc only a tokenized name is passed and it may also
return R_SYSVAR.
Inputs: TokName — Pointer to tokenized variable name.
Outputs: Same return value as CheckSysFunc with the addition of R_SYSVAR for
system variables.
Assumptions: None
Side Effects: None
Availability: All versions of the TI-89 / TI-92 Plus.
TI-89 / TI-92 Plus
None
Differences:
See Also: CheckSysFunc
Example: The rename command, once it determines the variable to rename is a
folder uses CheckReservedName to insure the new name is not a
reserved name as shown in the following code fragment.
EStackIndex origName, EStackIndex newName
.
.
.
if (FolderFind(origName) <= FL_OTHER) {
if (CheckReservedName(newName))
ER_THROW( ER_RESERVED );
.
.
.
TI-89 / TI-92 Plus Developer Guide Not for Distribution
1117
Beta Version January 26, 2001