First C compiler ported to GCC
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First C compiler ported to GCC
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Re: First C compiler ported to GCC
#2Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
Re: First C compiler ported to GCC
#3Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
Auto is not a type, it means local variable. I think its still a thing, just its the default so nobody uses it.
Re: First C compiler ported to GCC
#4Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
"auto" probably is the storage class, it tells what kind of variable this is. Automatic as opposed to "register" which would force the variable to be a register, or "static" or "extern".
The type is not given at all, I think by default it would be "int".
Re: First C compiler ported to GCC
#5Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
[deleted]
Re: First C compiler ported to GCC
#6Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
Hehe, “auto” used to mean “automatic storage” aka the stack. Then much later C++ repurposed the keyword for type deduction.
Re: First C compiler ported to GCC
#7Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
"auto" in c is a storage class specifier, like "register", "extern" or "static".
https://en.cppreference.com/w/c/language/storage_duration
It was considered pretty useless by most, so c++11 recycled the keyword to mean something different.
Re: First C compiler ported to GCC
#8Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
"auto" probably is the storage class, it tells what kind of variable this is. Automatic as opposed to "register" which would force the variable to be a register, or "static" or "extern". The type is not given at all, I think by default it would be "int".
> The type is not given at all, I think by default it would be "int".
Yep, this is called the "implicit int" rule, and it was specifically outlawed[1] by C99 and onward.
[1] https://herbsutter.com/2015/04/16/reader-qa-why-was-implicit...
Re: First C compiler ported to GCC
#9Did this compiler really support "auto" as a variable type, as seen in example fizzbuzz ?
"auto" probably is the storage class, it tells what kind of variable this is. Automatic as opposed to "register" which would force the variable to be a register, or "static" or "extern". The type is not given at all, I think by default it would be "int".
One of the unusual things in this early version of C is that "int" can be used for any word-sized value, including pointers. The type system was very loose.
Re: First C compiler ported to GCC
#10If the first C compiler was written in C... how could it be first C compiler? How could you compile the first C compiler?