The CC8BITLEVEL environment variable
determines the type of processing that the
Informix® ESQL/C filter, esqlmf,
performs on non-ASCII (8-bit and multibyte) characters.
The esqlmf filter converts all non-ASCII characters
in literal strings and comments to octal constants (for C compilers
that do not support these uses of non-ASCII characters).
1
The esqlmf filter converts non-ASCII characters
in literal strings to octal constants but allows them in comments
(some C compilers do support non-ASCII characters in comments).
2
The esqlmf filter allows non-ASCII characters
in literal strings and ensures that all the bytes in the non-ASCII
characters have the eighth bit set (for C compilers with this requirement).
3
The esqlmf filter does not filter non-ASCII
characters (for C compilers that support multibyte characters in literal
strings and in comments).
To start esqlmf each time that you process the Informix ESQL/C source file with the esql
command, set the ESQLMF environment variable to 1. If you do
not set CC8BITLEVEL, the esql command assumes a default
value for CC8BITLEVEL of 0.
Important: When
ESQLMF is set to 1 to enable automatic multibyte filtering, do
not set CC8BITLEVEL to 3.