FOLD
Section: C Library Functions (3)
Updated: 12/5/79
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NAME
foldup, folddown - perform case-folding on strings
SYNOPSIS
char *foldup (out,in);
char *folddown (out,in);
char *out,*in;
DESCRIPTION
Foldup
and
folddown
perform case-folding (to upper or lower case, respectively)
on strings.
The string at
in
is copied to the buffer at
out,
changing letters as appropriate.
Only letters are affected.
It is
specifically allowed
for
out
and
in
to specify the same string; in this manner, in-place case folding
is possible.
Both folding routines return
out
as their value, for convenience.
BUGS
No "inversion" mode is provided.
In-place case folding is accomplished
by specifying
out
and
in
as the same string; this is a rather cumbersome way to specify the most
common manner of case-folding.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- BUGS
-
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