[unix-history] / man / man3 / reset.3

.th RESET III 5/10/73
.sh NAME
reset \*- execute non-local goto
.sh SYNOPSIS
.ft B
setexit( )
.s3
reset( )
.ft R
.sh DESCRIPTION
These routines are useful
for dealing with errors
discovered in a low-level subroutine
of a program.
.s3
.it Setexit
is typically called just at the start of
the main loop of a processing program.
It stores certain parameters such as the call point and the stack
level.
.s3
.it Reset
is typically called after diagnosing an error
in some subprocedure called from the main loop.
When
.it reset
is called,
it pops the stack appropriately
and generates a non-local return from
the last call to
.it setexit.
.s3
It is erroneous, and generally
disastrous,
to call
.it reset
unless
.it setexit
has been called in a routine which is
an ancestor of
.it reset.
.sh BUGS
Commit	Line	Data
d0e448f7 KT	1	.th RESET III 5/10/73
	2	.sh NAME
	3	reset \*- execute non-local goto
	4	.sh SYNOPSIS
	5	.ft B
	6	setexit( )
	7	.s3
	8	reset( )
	9	.ft R
	10	.sh DESCRIPTION
	11	These routines are useful
	12	for dealing with errors
	13	discovered in a low-level subroutine
	14	of a program.
	15	.s3
	16	.it Setexit
	17	is typically called just at the start of
	18	the main loop of a processing program.
	19	It stores certain parameters such as the call point and the stack
	20	level.
	21	.s3
	22	.it Reset
	23	is typically called after diagnosing an error
	24	in some subprocedure called from the main loop.
	25	When
	26	.it reset
	27	is called,
	28	it pops the stack appropriately
	29	and generates a non-local return from
	30	the last call to
	31	.it setexit.
	32	.s3
	33	It is erroneous, and generally
	34	disastrous,
	35	to call
	36	.it reset
	37	unless
	38	.it setexit
	39	has been called in a routine which is
	40	an ancestor of
	41	.it reset.
	42	.sh BUGS