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A basic math expression evaluator
| Name | FBasicMathExpressionEvaluator |
| Type | class |
| Header File | /Engine/Source/Runtime/Core/Public/Math/BasicMathExpressionEvaluator.h |
| Include Path | #include "Math/BasicMathExpressionEvaluator.h" |
Syntax
class FBasicMathExpressionEvaluator
Constructors
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
FBasicMathExpressionEvaluator() |
Constructor that sets up the parser's lexer and compiler | Math/BasicMathExpressionEvaluator.h |
Variables
Protected
| Name | Type | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|---|
| Grammar | FExpressionGrammar | Math/BasicMathExpressionEvaluator.h | ||
| JumpTable | FOperatorJumpTable | Math/BasicMathExpressionEvaluator.h | ||
| TokenDefinitions | FTokenDefinitions | Math/BasicMathExpressionEvaluator.h |
Functions
Public
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
TValueOrError< double, FExpressionError > Evaluate
(
const TCHAR* InExpression, |
Evaluate the given expression, resulting in either a double value, or an error | Math/BasicMathExpressionEvaluator.h |
Static
| Name | Remarks | Include Path | Unreal Specifiers |
|---|---|---|---|
static void DefineArithmeticOperators
(
FExpressionGrammar& TokenDefinitions |
Math/BasicMathExpressionEvaluator.h | ||
static void DefineArithmeticTokens
(
FTokenDefinitions& TokenDefinitions |
Utils that can be re-used as part of more complex evaluators | Math/BasicMathExpressionEvaluator.h | |
static void MapArithmeticOperators
(
FOperatorJumpTable& JumpTable |
Math/BasicMathExpressionEvaluator.h |