definition: |
read :: Read a => String -> a read s = case [x | (x, t) <- reads s, ("", "") <- lex t] of [x] -> x |
demand: |
argument 1 |
deterministic: |
deterministic operation |
documentation: |
Reads data of the given type from a string. The operations fails if the data cannot be parsed. For instance `read "42" :: Int` evaluates to `42`, and `read "hello" :: Int` fails. |
failfree: |
<FAILING> |
indeterministic: |
referentially transparent operation |
infix: |
no fixity defined |
iotype: |
{(_,_) |-> _} |
name: |
read |
precedence: |
no precedence defined |
result-values: |
_ |
signature: |
Read a => [Char] -> a |
solution-complete: |
operation might suspend on free variables |
terminating: |
possibly non-terminating |
totally-defined: |
possibly non-reducible on same data term |