macroprocessor: stop with error when division by zero is encountered. closes #1278
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@ -9699,8 +9699,11 @@ String literals have to be enclosed between @strong{double} quotes
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elements are separated by commas (like @code{[1,2,3]} or @code{["US",
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"EA"]}).
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Note that there is no boolean type: @emph{false} is
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represented by integer zero and @emph{true} is any non-null integer.
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Note that there is no boolean type: @emph{false} is represented by integer zero
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and @emph{true} is any non-null integer. Further note that, as the
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macro-processor cannot handle non-integer real numbers, integer division
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results in the quotient with the fractional part truncated (hence,
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@math{5/3=3/3=1}).
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The following operators can be used on integers:
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@itemize
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2008-2014 Dynare Team
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* Copyright (C) 2008-2016 Dynare Team
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*
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* This file is part of Dynare.
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*
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@ -150,7 +150,12 @@ expr : INTEGER
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| expr TIMES expr
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{ TYPERR_CATCH($$ = *$1 * *$3, @$); }
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| expr DIVIDE expr
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{ TYPERR_CATCH($$ = *$1 / *$3, @$); }
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{
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if (dynamic_cast<const IntMV *>($3) != NULL
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&& ((IntMV *)$3)->get_int_value() == 0)
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driver.error(@$, "Division by zero");
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TYPERR_CATCH($$ = *$1 / *$3, @$);
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}
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| expr LESS expr
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{ TYPERR_CATCH($$ = *$1 < *$3, @$); }
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| expr GREATER expr
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2008-2013 Dynare Team
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* Copyright (C) 2008-2016 Dynare Team
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*
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* This file is part of Dynare.
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*
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@ -158,6 +158,7 @@ public:
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If mv2 < mv1, returns an empty range (for consistency with MATLAB).
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*/
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static const MacroValue *new_range(MacroDriver &driver, const MacroValue *mv1, const MacroValue *mv2) throw (TypeError);
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inline int get_int_value() const { return value; };
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};
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//! Represents a string value in macro language
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