r_express

record r_express(...);

is a new record, with data of the types and values described by the every second optional argument in the positions indicated by the preceding optional arguments (data is linked if allowed, copied otherwise)

See Referable Objects.

the function faults if one of the insert positions is repeated.

r_render

record r_render(...);

is a new record, with data of the types and values described by the every second optional argument in the positions indicated by the preceding optional arguments (data is copied)

the function faults if one of the insert positions is repeated.

record

record record(...);

same as ‘r_express’