Class PreprocessorIfdef
A C/C++ preprocessor #ifdef
directive. For example there is a
PreprocessorIfdef
on the first line of the following code:
#ifdef MYDEFINE
// ...
#endif
The syntax #ifdef X
is shorthand for #if defined(X)
.
Import path
import cpp
Direct supertypes
Indirect supertypes
Predicates
getAPrimaryQlClass | Gets the name of a primary CodeQL class to which this element belongs. |
toString | Gets a textual representation of this element. |
Inherited predicates
findRootCause | Gets the source of this element: either itself or a macro that expanded to this element. | from Element |
fromSource | Holds if this element may be from source. This predicate holds for all elements, except for those in the dummy file, whose name is the empty string. The dummy file contains declarations that are built directly into the compiler. | from Element |
getAGuard | Gets a preprocessor branching directive whose condition affects whether this directive is performed. | from PreprocessorDirective |
getEnclosingElement | Gets the closest | from Element |
getEndIf | Gets the | from PreprocessorBranchDirective |
getFile | Gets the primary file where this element occurs. | from Element |
getHead | from PreprocessorDirective | |
getIf | Gets the | from PreprocessorBranchDirective |
getLocation | Gets the primary location of this element. | from PreprocessorDirective |
getNext | Gets the next | from PreprocessorBranchDirective |
getParentScope | Gets the parent scope of this | from Element |
getPrimaryQlClasses | Gets a comma-separated list of the names of the primary CodeQL classes to which this element belongs. | from ElementBase |
isAffectedByMacro | Holds if this element is affected in any way by a macro. All elements that are totally or partially generated by a macro are included, so this is a super-set of | from Element |
isFromTemplateInstantiation | Holds if this | from Element |
isFromUninstantiatedTemplate | Holds if this | from Element |
isInMacroExpansion | Holds if this element comes from a macro expansion. Only elements that are entirely generated by a macro are included - for elements that partially come from a macro, see | from Element |
wasNotTaken | Holds if at least one translation unit evaluated this directive’s condition but then didn’t take the branch. | from PreprocessorBranch |
wasPredictable | Holds if this directive was either taken by all translation units which evaluated it, or was not taken by any translation unit which evaluated it. | from PreprocessorBranch |
wasTaken | Holds if at least one translation unit evaluated this directive’s condition and subsequently took the branch. | from PreprocessorBranch |