Hi,

for my latest project I am trying to customize CppCheck by defining some additional analysis rules. But I have some problems with the regexp used by CppCheck. For example, I want to search for this expression:

float f = 1982;

I have written the following regexp (which I have successfully tested in an online regexp tester):

float(\s+)(\w+)(\s*)=(\s*)(\d+);

When running CppCheck, the C expression above is not found. Any advices or suggestions?

Thanks in advance

This is the rule XML file I use:

<?xml version="1.0"?>
<rule version="1">
  <pattern>float(\s+)(\w+)(\s*)=(\s*)(\d+);</pattern>
  <message>
    <id>intToFloatAssignment</id>
    <severity>error</severity>
    <summary>Do not assign int values to a float variable.</summary>
  </message>
</rule>

Thanks for the hint. The output of CppCheck is quite strange. The expression 'float f = 123;' seems only to be supressed if a C type is used. When I define a local variable with a custom data type the content of the function 'foo' is shown in the output.

Example 1:

int foo() {
  int f = 1982;
}

Output:

[testsnippets2.cpp:1]: (style) found ' int foo ( ) { }'

Example 2:

int foo() {
  bar f = 1982;
}

Output:

[testsnippets2.cpp:1]: (style) found ' int foo ( ) { bar f ; f = 1982 ; }'

Maybe I should try another more reliable code analyser (e.g. Clang).