int main ( int argc, char * argv[ ] ) { ... } in the above example, argv is an array of pointers , *argv points to the program name, and *++argv points to the first argument string.

and here ar is an array of pointers, and why *++ar is invalid?

That's spamming.

dunno whatcha mean

Spamming: send the same message indiscriminately to (a large number of Internet users).

and here ar is an array of pointers, and why *++ar is invalid?

Have u read about operator precedence ?

That's spamming.

I just did that

Have u read about operator precedence ?

yes

yes

What is Operator Precedence ?

What is Operator Precedence ?

hierarchy of operators, which one goes into effect first

hierarchy of operators, which one goes into effect first

Hierarchy? So which one is the supreme leader ?

I dunno exactly

don't beat around the bush please, just tell me why those two cases behave diffrently?

Have u learnt lvalues and rvalues ?

yes last night

but my question is why that works for argv, but doesnt work for ar

Because u are doing it wrong.

U don't iterate like that

And if u want to get the values simply use pointer or array notation.

I don't think so. char *argv[ ] is an array of pointers just as char *ar[ ] is, both contain pointers to strinngs. but the problem is: *++argv is valid for argv, but is invalid forv ar

I don't think so. char *argv[ ] is an array of pointers just as char *ar[ ] is, both contain pointers to strinngs. but the problem is: *++argv is valid for argv, but is invalid forv ar

Because it's char**

Is it good to shift from windows to Ubuntu for programming android and web applications in future

???

Because it's char**

ar is also of type char **

Even if u write char *[] it gets adjusted to char**

ar is also of type char **

Nope.

Nope.

so what's that

so what's that

argv is char** ar is a char*[]

Change ar to char** and be liberated.

And greeted with error

argv is char** ar is a char*[]

here argv is char *[ ], and *++argv is valid

Lest I forget.

C standard states: 7 A declaration of a parameter as ``array of type'' shall be adjusted to ``qualified pointer to type'', where the type qualifiers (if any) are those specified within the [ and ] of the array type derivation. If the keyword static also appears within the [ and ] of the array type derivation, then for each call to the function, the value of the corresponding actual argument shall provide access to the first element of an array with at least as many elements as specified by the size expression.

http://www.iso-9899.info/n1570.html#6.7.6.3p7

Well, this was discussed Yesterday

Dunno why u still surprised

Arrays decays to pointers in function parameters

ok thanx

You seem to tell this like knowing a low-level programming language is something bad

It's not bad, it just may be not needed, because in most cases you can do the same things in C++ much easier, safer and more readable. But if a person knows this and still wants to learn C, then that's totally OK.

/rules

In Python we have String = "$1, $2"%(var1,var2...) Is c have alternetive of this thing Instead of sprintf

Actually we usually use f-strings

Or .format

Do you really mean C or just C++?

hi I'm new here

Seems like you can't

hi I'm new here

Hi

an English speaking Russain, with arabic profile. seems funny😊

Lol I asked myself the same question

why does the line numbering system look weird

its counting the distance from the cursor. Some people on vim use that but its fucking useless

can you suggest some c++ projects to take up as a beginner

In Python we have String = "$1, $2"%(var1,var2...) Is c have alternetive of this thing Instead of sprintf

sprintf?

/get ide

sprintf is a good thing for simple formatting, but when it comes to even simpliest l10n it becomes useless. the way of formatting that was sent as python example is mutch better, but afaik there no such things even in STL in C++, not talking of C. But it's a common problem, so there probably should be some libs for better string formatting

there is one

fmtlib its called

Taken he comes from python, sprintf might be the shortest and most simple step from it to get started, but I do agree its limited; I don't expect a newcomer to be into all various libraries available etc., I'd say learn first, expand later and don't overload with all kinds of externally available libraries as that might confuse and scare off newcomers

👍

In Python we have String = "$1, $2"%(var1,var2...) Is c have alternetive of this thing Instead of sprintf

This is what printf does - except it just outputs to the console. However, you can also just concatenate strings together like so: std::string S = s1 + s2

He referred to printf, but probably had the problem of it outputting instead of retrieving the resulting string back

sprintf

sprintf does what he wants but he doesnt want to use it (for some reason)

That he didn't say, he only said printf didn't work for him

Oh fuck

In Python we have String = "$1, $2"%(var1,var2...) Is c have alternetive of this thing Instead of sprintf

>Instead of sprintf

You're right

Oh fuck

😂

He said sprintf 😂

I thought he said printf

my bad whahahahaha

xD

let paypal sponsor you with some coffee 😉

But then again I had so many asking about it wanting sprintf because they only knew printf from their books ...

😂

Yeah I could use some whahahaha

Hehehe

You have a few millions on your account

just let them pay for some

😂

what?

In Python we have String = "$1, $2"%(var1,var2...) Is c have alternetive of this thing Instead of sprintf

fmtlib is probably what you're searching for