Exception - BHC Documentation

data SomeException { } #

SomeException String

data IOException { } #

IOException String

An exception from the I/O subsystem.

data ErrorCall { } #

ErrorCall String

An exception from calling error.

data ArithException { } #

Overflow

Underflow

LossOfPrecision

DivideByZero

Denormal

RatioZeroDenominator

Arithmetic exceptions (division by zero, overflow, etc.).

data AssertionFailed { } #

AssertionFailed String

An assertion failure.

data AsyncException { } #

StackOverflow

HeapOverflow

ThreadKilled

UserInterrupt

Asynchronous exceptions.

data MaskingState { } #

Unmasked

MaskedInterruptible

MaskedUninterruptible

Masking state for asynchronous exceptions.

class Show e => Exception e { } #

toException :: e -> SomeException

fromException :: SomeException -> Maybe e

displayException :: e -> String

The Exception typeclass. Types that can be thrown and

instance Exception SomeException { }

instance Exception IOException { }

instance Exception ErrorCall { }

instance Exception ArithException { }

instance Exception AssertionFailed { }

instance Exception AsyncException { }