353
unsafeCode
(lemmy.ml)
Strictly speaking, it should be
Unsafe block syntax in C++
{ ...}
That is why I use just int main(){...} without arguments instead.
Any void main(){...} enjoyers?
besides not requiring a return value, what difference does it make?
@stebo02 @Bogus5553 Neither of them require a return value, but void main isn't legal C++.
yeah I thought so, does it work in C?
void main(){...} is not in the standard, but works on both MSVC and GCC (with warnings). I think it works on both C/C++, but you really shouldn’t use it in production. Just use int main(void){...} , without any return value, which is permitted in the standard, and will return success iirc.
It will also give an error if you try to add a return value anyways.
while (true) {...}
int main(void) { . . . } for me!
Safe code is a skill, not a feature.
i will never forgive C for making the type syntax be
char* args[]
instead of the much more reasonable
&[char] args
it also bothers me that char* args[] and char c are “the same type” in the sense that the compiler lets you write
char c, *args[5];
with no problems. i think the C languages would be way easier to learn if they had better type syntax. don’t even get me started on C++ adding support for
auto fn_name() -> ReturnType { … }
@affiliate Hey, you didn't even mention that char *args[] actually means char **args in a parameter list.
god, what a beautiful language. it brings a tear to my eye
I personally think that C++ can be beautiful. For example: std::filesystem::path overrides the / operator, for specifying parent paths. It’s the same as Kotlin’s OKIO and Pythons standard pathlib.
It could, but not necessarily.
char **args can just mean you have a pointer which points to an address, and at that address, you can get a second address. Follow the second address, there is a char saved there.
On the other hand, char *args[] means " follow this address to find a list of characters".
@racketlauncher831 As far as the C compiler is concerned, there is literally no difference between those two notations. If you declare a function parameter as an array (of T), the C compiler automatically strips the size information (if any) and changes the type to pointer (to T).
(And if we're talking humans, then char *args[] does not mean "follow this address to find a list of characters" because that's the syntax for "array of pointers", not "pointer to array".)
counterpoint: all code is unsafe. retvrn to abacuses
But I was hit over the head with one, that wasn't safe either!
this post was submitted on 11 Feb 2025
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