Picat String and I/O Operations Flashcards
6 cards from real Picat practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Picat String and I/O Operations flashcards as text
Which built-in type-checks whether a term is a string in Picat?
Answer: string(T)
`string(T)` succeeds if and only if T is a string value in Picat.
What does `atom_chars(Atom, Chars)` accomplish in Picat?
Answer: Converts between an atom and its character list
`atom_chars/2` is a bidirectional predicate that converts between an atom and its list of character atoms.
How do you access the Nth element of a string in Picat?
Answer: S[N]
Picat supports array-style indexing with `S[N]` to retrieve the Nth element of a string or list.
How do you write formatted output to a specific file stream in Picat?
Answer: format(Stream, Format, Args)
`format(Stream, Format, Args)` writes formatted output directed to the specified stream.
What does `number_codes(N, Codes)` do in Picat?
Answer: Converts between a number and its list of ASCII codes
`number_codes/2` is a bidirectional predicate converting between a number and its list of character codes.
Which predicate reads a single character from an open stream in Picat?
Answer: get_char(Stream, Char)
`get_char(Stream, Char)` reads one character from the stream and unifies Char with the character atom.