ConstantExpression¶
Handles the Python interpretation of a constant-expression. See ISO/IEC 14882:1998(E)
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class
cpip.core.ConstantExpression.
ConstantExpression
(theTokTypeS)¶ Class that interpret a stream of pre-processing tokens (
cpip.core.PpToken.PpToken
objects) and evaluate it as a constant expression.-
evaluate
()¶ Evaluates the constant expression and returns 0 or 1.
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translateTokensToString
()¶ Returns a string to be evaluated as a constant-expression.
ISO/IEC ISO/IEC 14882:1998(E) 16.1 Conditional inclusion sub-section 4 i.e. 16.1-4
All remaining identifiers and keywords 137) , except for true and false, are replaced with the pp-number 0
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exception
cpip.core.ConstantExpression.
ExceptionConditionalExpression
¶ Exception when conditional expression e.g. ... ? ... : ... fails to evaluate.
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exception
cpip.core.ConstantExpression.
ExceptionConditionalExpressionInit
¶ Exception when initialising a ConstantExpression class.
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exception
cpip.core.ConstantExpression.
ExceptionConstantExpression
¶ Simple specialisation of an exception class for the ConstantExpression classes.
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exception
cpip.core.ConstantExpression.
ExceptionEvaluateExpression
¶ Exception when conditional expression e.g. 1 < 2 fails to evaluate.