These generic-text constant, global variable, and standard-type mappings are defined in TCHAR.H and depend on whether the constant _UNICODE or _MBCS has been defined in your program.
Generic-Text Constant and Global Variable Mappings
| Generic-Text – Object Name |
SBCS (_UNICODE, _MBCS Not Defined) |
_MBCS Defined | _UNICODE Defined |
| _TEOF | EOF | EOF | WEOF |
| _tenviron | _environ | _environ | _wenviron |
| _tfinddata_t | _finddata_t | _finddata_t | _wfinddata_t |
See Also Generic-text mappings, Data type mappings, Routine mappings, A sample generic-text program, Using generic-text mappings