Files
calc/help/errcount
Landon Curt Noll 42129a3672 change error printing from errnum to errsym
When printing an error, calc used to print the errnum (error number):

    ; 1/0
	    Error 10001

Calc now prints the errsym (errsym):

    ; 1/0
	    Error E_DIVBYZERO

Added errsym E_LN_3 for ln(0).
Added errsym E_LOG_5 for log(0).
Added errsym E_LOG2_4 for log2(0).
Added errsym E_LOGN_6 for logn(0,base).
2023-10-03 22:12:14 -07:00

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NAME
errcount - return or set the internal error count
SYNOPSIS
errcount([num])
TYPES
num integer
return integer
DESCRIPTION
An internal variable keeps count of the number of functions
evaluating to an error value either internally or by a call to
error() or newerror().
The errcount() with no args returns the current error count. Calling
errcount(num) returns the current error count and resets it to num.
If the count exceeds the current value of errmax, execution is aborted
with a message displaying the errno for the error.
If an error value is assigned to a variable as in:
infty = 1/0;
then a function returning that variable does not contribute to
errcount.
EXAMPLE
; ## NOTE: Your output may vary:
; errmax(10)
0
; errcount()
0
; a = 1/0; b = 2 + ""; c = error(27); d = newerror("a");
; print errcount(), a, errcount(), errmax();
4 Error E_DIVBYZERO 4 10
LIMITS
0 <= num < 2^32
LINK LIBRARY
none
SEE ALSO
errmax, errno, errorcodes, errsym, iserror, newerror, stoponerror, strerror
## Copyright (C) 1999-2006,2021,2023 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## Under source code control: 1997/03/08 08:51:14
## File existed as early as: 1997
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/