V1CTYPE
This locale is designated as “V1CTYPE” or LC_C_V1CTYPE. It is set automatically when the program starts if the main routine is a C V1.0 object.
Differences from the C locale:
LC_CTYPE
The characters X’8B’, X’8C’and X’8D’ are lowercase characters, X’AB’, X’AC’ and
X’AD’ are uppercase characters, and X’C0’ and X’D0’ are special characters. In the “C” locale all these characters are control characters.
LC-COLLATE
The sort sequence corresponds to the EBCDIC value of each character (see table on "Country-specific locale GERMANY").
V2CTYPE
This locale is designated as “V2CTYPE” or LC_C_V2CTYPE. It is compatible with locale “C” in versions 2.0 and 2.1 of the C runtime system.
Differences from the C locale:
LC-COLLATE
The sort sequence corresponds to the EBCDIC value of each character (see table on "Country-specific locale GERMANY").