Generic Function Queries

The generic function query allows you to select functions by means of the following form.

Function Query

C function
Function-like macro
Writable declaration
Read-only declaration
Project scope
File scope
Defined

Sort-by	Metric	Compare	Value
	Number of characters
	Number of comment characters
	Number of space characters
	Number of line comments
	Number of block comments
	Number of lines
	Maximum number of characters in a line
	Number of character strings
	Number of unprocessed lines
	Number of C preprocessor directives
	Number of processed C preprocessor conditionals (ifdef, if, elif)
	Number of defined C preprocessor function-like macros
	Number of defined C preprocessor object-like macros
	Number of preprocessed tokens
	Number of compiled tokens
	Number of statements or declarations
	Number of operators
	Number of unique operators
	Number of numeric constants
	Number of character literals
	Number of if statements
	Number of else clauses
	Number of switch statements
	Number of case labels
	Number of default labels
	Number of break statements
	Number of for statements
	Number of while statements
	Number of do statements
	Number of continue statements
	Number of goto statements
	Number of return statements
	Number of project-scope identifiers
	Number of file-scope (static) identifiers
	Number of macro identifiers
	Total number of object and object-like identifiers
	Number of unique project-scope identifiers
	Number of unique file-scope (static) identifiers
	Number of unique macro identifiers
	Number of unique object and object-like identifiers
	Number of global namespace occupants at function's top
	Number of parameters
	Maximum level of statement nesting
	Number of goto labels
	Fan-in (number of calling functions)
	Fan-out (number of called functions)
	Cyclomatic complexity (control statements)
	Extended cyclomatic complexity (includes branching operators)
	Maximum cyclomatic complexity (includes branching operators and all switch branches)
	Structure complexity (Henry and Kafura)
	Halstead complexity
	Information flow metric (Henry and Selig)
	Entity name

Reverse sort order

Match any marked Match all marked Exclude marked Exact match

Number of direct callers
Function names should ( not) match RE
Names of calling functions should ( not) match RE
Names of called functions should ( not) match RE
Select functions from filenames ( not) matching RE

Query title

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CScout

On the top you can specify whether each function you want listed:

is a C function
is a function-like macro
has a writable declaration
has a read-only declaration
is visible in the whole project scope
is visible only in a file scope
has a definition body.

As is the case in file queries, next comes a series of metrics CScout collects for each defined function. For each metric (e.g. the number of comments) you can specify an operator ==, !=, < or > and a number to match that metric against. Thus to locate functions containing goto statement you would specify
Number of goto statements != 0.

On the left of each metric you can specify whether that metric will be used to sort the resulting file list. In that case, the corresponding number will appear together with each file listed. A separate option allows you to specify that files should be sorted in the reverse order.

Similarly to the identifier query, you can also specify whether the specified properties should be treated

as a disjunction (match any marked),
as a conjunction (match all marked),
as a negation excluding all identifiers matching any property (exclude marked), or
as an exact match specification matching only identifiers that match exactly the properties specified (exact match)

In addition you can specify:

That the function should have a specified number of direct callers.
A regular expression against which function names should match (or not match)
A regular expression against which the names of calling functions should match (or not match)
A regular expression against which the names of any called functions should match (or not match)
A regular expression that filenames in which functions are declared occur should match (or not match)
A query title to be used for naming the result page. The title will appear on the result document annotating the results, and will also provide you with a sensible name when creating a bookmark to it.