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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <sal/mathconf.h>
#include <sal/types.h>
#include <cmath>
#include <limits>
// Store as 16-bits, since error values are stored in tokens and formula results,
// and that can matter
enum class FormulaError : sal_uInt16
{
NONE = 0,
IllegalChar = 501,
IllegalArgument = 502,
IllegalFPOperation = 503, // #NUM!
IllegalParameter = 504,
Pair = 507,
PairExpected = 508,
OperatorExpected = 509,
VariableExpected = 510,
ParameterExpected = 511,
CodeOverflow = 512,
StringOverflow = 513,
StackOverflow = 514,
UnknownState = 515,
UnknownVariable = 516,
UnknownOpCode = 517,
UnknownStackVariable = 518,
NoValue = 519, // #VALUE!
UnknownToken = 520,
NoCode = 521, // #NULL!
CircularReference = 522,
NoConvergence = 523,
NoRef = 524, // #REF!
NoName = 525, // #NAME?
// ScInterpreter internal: no numeric value but numeric queried. If this is
// set as mnStringNoValueError no error is generated but 0 returned.
CellNoValue = 529,
// Interpreter: needed AddIn not found
NoAddin = 530,
// Interpreter: needed Macro not found
NoMacro = 531,
// Interpreter: Division by zero
DivisionByZero = 532, // #DIV/0!
// Compiler: a non-simple (str,err,val) value was put in an array
NestedArray = 533,
// ScInterpreter internal: no numeric value but numeric queried. If this is
// temporarily (!) set as mnStringNoValueError, the error is generated and can
// be used to distinguish that condition from all other (inherited) errors. Do
// not use for anything else! Never push or inherit the error otherwise!
NotNumericString = 534,
// ScInterpreter internal: jump matrix already has a result at this position,
// do not overwrite in case of empty code path.
JumpMatHasResult = 535,
// ScInterpreter internal: (matrix) element is not a numeric value, i.e.
// string or empty, to be distinguished from the general FormulaError::NoValue NAN and not
// to be used as result.
ElementNaN = 536,
// ScInterpreter/ScFormulaCell internal: keep dirty, retry interpreting next
// round.
RetryCircular = 537,
// If matrix could not be allocated.
MatrixSize = 538,
// Bad inline array content, non-value/non-string.
BadArrayContent = 539,
// Interpreter: signal result not available because updating links is not
// allowed (yet) and tell to try hybrid string as result.
LinkFormulaNeedingCheck = 540,
// Interpreter: NA() not available condition, not a real error
NotAvailable = 0x7fff
};
/** Unconditionally construct a double value of NAN where the lower bits
represent an interpreter error code. */
inline double CreateDoubleError( FormulaError nErr )
{
sal_math_Double smVal;
smVal.value = std::numeric_limits<double>::quiet_NaN();
smVal.nan_parts.fraction_lo = static_cast<unsigned>(nErr);
return smVal.value;
}
/** Recreate the error code of a coded double error, if any. */
inline FormulaError GetDoubleErrorValue( double fVal )
{
if ( std::isfinite( fVal ) )
return FormulaError::NONE;
if ( std::isinf( fVal ) )
return FormulaError::IllegalFPOperation; // normal INF
sal_uInt32 nErr = reinterpret_cast< sal_math_Double * >( &fVal)->nan_parts.fraction_lo;
if ( nErr & 0xffff0000 )
return FormulaError::NoValue; // just a normal NAN
if (!nErr)
// Another NAN, e.g. -nan(0x8000000000000) from calculating with -inf
return FormulaError::IllegalFPOperation;
// Any other error known to us as error code.
return static_cast<FormulaError>(nErr & 0x0000ffff);
}
/** Error values that are accepted as detailed "#ERRxxx!" constants.
Used in FormulaCompiler::GetErrorConstant() to prevent users from inventing
arbitrary values that already have or later might get a significant meaning.
*/
inline bool isPublishedFormulaError( FormulaError nErr )
{
// Every value has to be handled explicitly, do not add a default case to
// let the compiler complain if a value is missing.
switch (nErr)
{
case FormulaError::NONE:
return false;
case FormulaError::IllegalChar:
case FormulaError::IllegalArgument:
case FormulaError::IllegalFPOperation:
case FormulaError::IllegalParameter:
case FormulaError::Pair:
case FormulaError::PairExpected:
case FormulaError::OperatorExpected:
case FormulaError::VariableExpected:
case FormulaError::ParameterExpected:
case FormulaError::CodeOverflow:
case FormulaError::StringOverflow:
case FormulaError::StackOverflow:
case FormulaError::UnknownState:
case FormulaError::UnknownVariable:
case FormulaError::UnknownOpCode:
case FormulaError::UnknownStackVariable:
case FormulaError::NoValue:
case FormulaError::UnknownToken:
case FormulaError::NoCode:
case FormulaError::CircularReference:
case FormulaError::NoConvergence:
case FormulaError::NoRef:
case FormulaError::NoName:
return true;
case FormulaError::CellNoValue:
return false;
case FormulaError::NoAddin:
case FormulaError::NoMacro:
case FormulaError::DivisionByZero:
case FormulaError::NestedArray:
case FormulaError::BadArrayContent:
return true;
case FormulaError::NotNumericString:
case FormulaError::JumpMatHasResult:
case FormulaError::ElementNaN:
case FormulaError::RetryCircular:
return false;
case FormulaError::MatrixSize:
case FormulaError::LinkFormulaNeedingCheck:
return true;
case FormulaError::NotAvailable:
return false;
}
return false;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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