z/OS® XL C/C++ treats the control characters as follows when you are writing
to a non-ASA text file:
- \a
- Alarm. Placed directly into the file; z/OS XL C/C++ does not interpret
it.
- \b
- Backspace. Placed directly into the file; z/OS XL C/C++ does not interpret
it.
- \f
- Form feed. Placed directly into the file; z/OS XL C/C++ does not interpret
it.
- \n
- New-line. Defines a record boundary; z/OS XL C/C++ does not place it
in the file.
- \r
- Carriage return. Defines a record boundary; z/OS XL C/C++ does not
place it in the file. Treated like a new-line character.
- \t
- Horizontal tab character. Placed directly into the file; z/OS XL C/C++ does
not interpret it.
- \v
- Vertical tab character. Placed directly into the file; z/OS XL C/C++ does
not interpret it.
- \x0E
- DBCS shift-out character. Indicates the beginning of a DBCS
string, if MB_CUR_MAX > 1. Placed into the file.
- \x0F
- DBCS shift-in character. Indicates the end of a DBCS string,
if MB_CUR_MAX > 1. Placed into the file. See z/OS XL C Support for the double-byte character set for more information about MB_CUR_MAX.
The way z/OS XL C/C++ treats text files depends on whether they are in
fixed, variable, or undefined format, and whether they use ASA.
As with ASA files in other environments, the first character of
each record is reserved for the ASA control character that represents
a new-line, a carriage return, or a form feed. See Using ASA text files for
more information.
Table 1. C control to ASA characters| C Control Character Sequence |
ASA Character |
Description |
|---|
| \n |
' ' |
skip one line |
| \n\n |
'0' |
skip two lines |
| \n\n\n |
'-' |
skip three lines |
| \f |
'1' |
new page |
| \r |
'+' |
overstrike |