UWIDTH

UWIDTH returns a FIXED BIN(31) value, which is the width of the nth UTF character in a string.

x

Expression which must have CHARACTER or WIDECHAR type.

n

Expression which must have computational type and which will be converted to FIXED BIN(31) if necessary.

If x has CHARACTER type, then the string must contain valid UTF-8 data. If not, the program is in error.

If x has WIDECHAR type, then the string must contain valid UTF-16 data. If not, the program is in error.

If n is not positive or if n is larger than ULENGTH(x), then zero will be returned. Otherwise, if x has CHARACTER type, then UWIDTH(x,n) will return the width of the nth UTF-8 character, and if x has WIDECHAR type, then UWIDTH(x,n) will return the width of the nth UTF-16 character.