| KSDS | ESDS | RRDS | PATH | |
|---|---|---|---|---|
| fopen(), freopen() | rb, rb+, ab, ab+, wb, wb+ (empty cluster or reuse specified for wb & wb+) | rb, rb+, ab, ab+, wb, wb+ (empty cluster or reuse specified for wb & wb+) | rb, rb+, ab, ab+, wb, wb+ (empty cluster or reuse specified for wb & wb+) | rb, rb+, ab, ab+ |
| fwrite(), fwrite_unlocked() | rb+, ab, ab+, wb, wb+ | rb+, ab, ab+, wb, wb+ | rb+, ab, ab+, wb, wb+ | rb+, ab, ab+ |
| fread(), fread_unlocked() | rb, rb+, ab+, wb+ | rb, rb+, ab+, wb+ | rb, rb+, ab+, wb+ | rb, rb+, ab+ |
| ftell(), ftell_unlocked() | rb, rb+, ab, ab+, wb, wb+ (see note 1) | rb, rb+, ab, ab+, wb, wb+ | ||
| ftello(), ftello_unlocked() | rb, rb+, ab, ab+, wb, wb+ (see note 1) | rb, rb+, ab, ab+, wb, wb+ | ||
| fseek(), fseek_unlocked() | rb, rb+, ab, ab+, wb, wb+ (see note 1) | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | |
| fseeko(), fseeko_unlocked() | rb, rb+, ab, ab+, wb, wb+ (see note 1) | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | |
| fgetpos(), fgetpos_unlocked() | rb, rb+, ab, ab+, wb, wb+ (see note 2) | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | |
| fsetpos(), fsetpos_unlocked() | rb, rb+, ab, ab+, wb, wb+ (see note 2) | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | |
| flocate(), flocate_unlocked() | rb, rb+, ab+, wb+ | rb, rb+, ab+, wb+ | rb, rb+, ab+, wb+ | rb, rb+, ab+ |
| rewind(), rewind_unlocked() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| fflush(), fflush_unlocked() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| fdelrec(), fdelrec_unlocked() | rb+, ab+, wb+ | rb+, ab+, wb+ | rb+, ab+ (not ESDS) | |
| fupdate(), fupdate_unlocked() | rb+, ab+, wb+ | rb+, ab+, wb+ | rb+, ab+, wb+ | rb+, ab+ |
| ferror(), ferror_unlocked() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| feof(), feof_unlocked() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| clearerr(), clearerr_unlocked() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| fclose() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| fldata(), fldata_unlocked() | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+, wb, wb+ | rb, rb+, ab, ab+ |
| Notes:
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