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Annotation of researchv10dc/dist/man/v4/man3/reset.3, revision 1.1.1.1

1.1       root        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

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