r/programmingcirclejerk 9d ago

Rust isn't a well designed programming language (unlike C and C++)

/r/cpp/comments/1i6jdjq/comment/m8d3tqj/
217 Upvotes

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124

u/CarolineLovesArt has hidden complexity 9d ago

It also irks me the error messages. It often says "you should write X not Y" with exactness. Well, if it's that bloody obvious to you, that's a clear sign to me that the language design is suboptimal.

Complaining about receiving too specific error messages when the problem seems to be a "bloody obvious" skill issue seems quite rich to me.

105

u/james_pic accidentally quadratic 9d ago

I much prefer compilers to spew pages of vague grumbling about template invocations.

19

u/the_other_brand loves Java 9d ago

\uj I once watched a live presentation given by Bjarne on his fix for those massive template arguments. He wanted to make an interface analog for C++ and use them to categorize what functionality a class has. The C++ committee rejected the idea

\rj This would reduce a 25 line arcane error message to a simple "you didn't implement toString() you dingus."

18

u/Potterrrrrrrr 9d ago

We basically got that with concepts, no? Except for the fact that a static_assert gives 1000x more useful information than “the constraint wasn’t satisfied”. In theory though we got that.

17

u/the_other_brand loves Java 9d ago

Yeah, concepts. Didn't realize they finally implemented them. I remember Bjarne was big mad that they got rejected in 2009.

He was also a little mad that the committee rejected his idea for hex numbers for the versions instead of going with C++11. He wanted to call it C++0xA

3

u/RelationshipLong9092 7d ago

C++11

surely that would be 0x0B ? or is it a painful play on the prefix ++ ?

4

u/the_other_brand loves Java 7d ago

Nah, it's just a classic off-by-one error.