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What you are asking is the difference between main() and

main(void), is it?

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Bruno-F Автор вопроса

If yes, they're the same

Bruno F
If yes, they're the same

why cpp has to do to things for the same thing ??

Bruno-F Автор вопроса
𝘼𝙗𝙙𝙤 🧢
why cpp has to do to things for the same thing ??

Idk. Maybe you can find something on cpp annotations. Google it. This topic is right on the beginning

𝘼𝙗𝙙𝙤 🧢
why cpp has to do to things for the same thing ??

Until C23, in C C fun(void) and fun() are slightly different, fun() means the function can take arbitary no of parameters. while fun(void) will not take any. From C23 onwards f() and f(void) are the same. In C++ for backwards compatibility fun(void) is allowed but it's the same as fun()

cool , i tried to pass a variable to a non paramter function like that : int func() { printf("%d" , x ) ; ) int main() { int x = 1 ; func(x) ; } it didn't work tho

Manav | avoid unnecessary messaging me
you did not define func(), you've only declared it

as i know , the int func ; in the beggining is only required if you declare the function after the main function

𝘼𝙗𝙙𝙤 🧢
as i know , the int func ; in the beggining is onl...

uhh what? if you separate declaration from definition, you need to provide definition, or resolve it at link time

Manav | avoid unnecessary messaging me
uhh what? if you separate declaration from definit...

not sure what this mean : so this is declaration : int func() { //some code } and this is definitions : int func() ;

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