dibbit · HackerTrans

dibbit

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vor 13 Jahrendiscuss

Maybe, but it will catch bugs like this if the test is written for it, and anyone writing C in the 21st century professionally, with safety in mind, is a) writing tests, and b) getting 100% coverage.

dibbit

vor 13 Jahrendiscuss

It made sense when portability from C to C++ was important, as in now and for as long as both languages have constancy.

dibbit

vor 13 Jahrendiscuss

Run the code and see for yourself, parent fixed it.

dibbit

vor 13 Jahrendiscuss

It does matter. sizeof is computed at compile time, it is not computed at runtime. something() is a runtime invocation .. sizeof() 'looks' like that, but isn't.

dibbit

vor 13 Jahrendiscuss

There actually is a good reason not to use parens with sizeof, and it is in fact a means of introducing subtle bugs to your code if you don't know the difference:

    sizeof some_struct; //computed at *compile* time
    sizeof(some_struct); // also computed at *compile* time, but looks like its a runtime call

Anything that looks like something but isn't actually that thing, in my opinion - especially with a language like C - is room for programmer enlightement ..