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[Singleton]

what is wrong with my main fn?



void f(char** p)

{

printf("%s", p[0]);

}



void main()

{

char a[50][50];

strcpy(a[0], "hello");

f(a);

}

 

[John Harrison]

what is wrong with my main fn?



void f(char** p)

{

printf("%s", p[0]);

}



void main()

{

char a[50][50];

strcpy(a[0], "hello");

f(a);

}

char[50][50] cannot be converted to char**.

You probably thought that because char[50] does convert to char* that
char[50][50] could convert to char** but you were wrong.

The correct rule is that T[N] can convert to T*, so in the case of
char[50][50] T=char[50], therefore char[50][50] converts to char(*)[50]
(i.e. a pointer to an array of 50 chars) not to char** (a pointer to a
pointer to a char).

So rewrite f like this

void f(char (*p)[50])
{
printf("%s", p[0]);
}

and your program will work.

Get a C or C++ book and read the section on declarations. As you've seen
sometimes your intuition will let you down.

john

 

[BobR]

what is wrong with my main fn?

void f(char** p){
printf("%s", p[0]);
}

void main(){
char a[50][50];
strcpy(a[0], "hello");
f(a);
}

You should ask this in an NG for the language you are using.
Hint: in 'C' and 'C++', 'main()' ALWAYS returns an 'int'.

 

[Jim Beam]

what is wrong with my main fn?

void f(char** p){
printf("%s", p[0]);
}

void main(){
char a[50][50];
strcpy(a[0], "hello");
f(a);
}

You should ask this in an NG for the language you are using.
Hint: in 'C' and 'C++', 'main()' ALWAYS returns an 'int'.

In 'English', 'apostrophes' are used to denote the 'possessive'. You
should ONLY post English in an English language newsgroup.

Do you see?

 

[BobR]

Jim Beam wrote in message ...

what is wrong with my main fn?

void f(char** p){
printf("%s", p[0]);
}

void main(){
char a[50][50];
strcpy(a[0], "hello");
f(a);
}

You should ask this in an NG for the language you are using.
Hint: in 'C' and 'C++', 'main()' ALWAYS returns an 'int'.

In 'English', 'apostrophes' are used to denote the 'possessive'. You
should ONLY post English in an English language newsgroup.

Do you see?

'RATS!' You sure know how to spoil a guys fun! '<G>'