The following table lists the limits to the size and complexity of a single Visual Fortran program unit and to individual statements contained in it.
The amount of data storage, the size of arrays, and the total size of executable programs are limited only by the amount of process virtual address space available, as determined by system parameters:
| Language Element | Limit |
|---|---|
| Actual number of arguments per CALL or function reference | No limit |
| Arguments in a function reference in a specification expression | No limit |
| Array dimensions | 7 |
| Array elements per dimension | 9,223,372,036,854,775,807 or process limit |
| Constants; character and Hollerith | 2000 characters |
| Constants; characters read in list-directed I/O | 2048 characters |
| Continuation lines | 511 |
| DO and block IF statement nesting (combined) | 128 |
| DO loop index variable | 9,223,372,036,854,775,807 or process limit |
| Format group nesting | 8 |
| Fortran source line length | 132 characters |
| INCLUDE file nesting | 20 levels |
| Labels in computed or assigned GOTO list | 500 |
| Lexical tokens per statement | 3000 |
| Named common blocks | 250 |
| Parentheses nesting in expressions | 40 |
| Structure nesting | 20 |
| Symbolic name length | 63 characters |