GCC docs : -fstack-usage Makes the compiler output stack usage information for the program, on a per-function basis. The filename for the dump is made by appending .su to the auxname. auxname is generated from the name of the output file, if explicitly specified and it is not an executable, otherwise it is the basename … Read more
static void D() { } static void Y() { D(); } static void X() { Y(); } static void C() { D(); X(); } static void B() { C(); } static void S() { D(); } static void P() { S(); } static void O() { P(); } static void N() { O(); } static … Read more
Code violation detection Tools: FxCop, excellent tool by Microsoft. Check compliance with .NET framework guidelines. Edit October 2010: No longer available as a standalone download. It is now included in the Windows SDK and after installation can be found in Program Files\Microsoft SDKs\Windows\ [v7.1] \Bin\FXCop\FxCopSetup.exe Edit February 2018: This functionality has now been integrated into … Read more
CppCheck is open source and cross-platform. Mac OSX: brew install cppcheck
Raphael wrote: Does antlr build the AST for us automatically by option{output=AST;}? Or do I have to make the tree myself? If it does, then how to spit out the nodes on that AST? No, the parser does not know what you want as root and as leaves for each parser rule, so you’ll have … Read more
See also What are extern variables in C. This is mentioned in the C standard in informative Annex J as a common extension: J.5.11 Multiple external definitions There may be more than one external definition for the identifier of an object, with or without the explicit use of the keyword extern; if the definitions disagree, … Read more
Run php in lint mode from the command line to validate syntax without execution: php -l FILENAME Higher-level static analyzers include: php-sat – Requires http://strategoxt.org/ PHP_Depend PHP_CodeSniffer PHP Mess Detector PHPStan PHP-CS-Fixer phan Lower-level analyzers include: PHP_Parser token_get_all (primitive function) Runtime analyzers, which are more useful for some things due to PHP’s dynamic nature, include: … Read more
The other answers all have salient points (fjh’s concrete example where an explicit lifetime is needed), but are missing one key thing: why are explicit lifetimes needed when the compiler will tell you you’ve got them wrong? This is actually the same question as “why are explicit types needed when the compiler can infer them”. … Read more