value to digits

[Kashif]

hi
first of all greeting to every one
i want to convert integer value into digits
like
input into any variable x=234678
into
store in array y[8] that y[0]=2,y[1]=3 and so on.
how can i do that
in c++

[Narue]

#include <cstdio>
std::sprintf ( y, "%d", x );

[Kashif]

i got error with that lib. i am using tc300
but i used char array and conv it into integer through atoi

[Lerner]

atoi() converts a null terminated char array into an integer value (strtox() functions may be a better choice for this) rather than convert an integer value into a null terminated char array. The three options I'm aware of to turn integers into null terminated char array include:

1) sprintf(), as per Narue's post. tc300 may not be up to date, in which case your options would be:
a) replace your compiler with one more up to date (there are several good, free compilers
available)
b) replace #include <cstdio> with #include <stdio> and drop the std:: notation before sprintf()

2) use stringstreams if you want C++ syntax rather than C syntax

3) use non-standard itoa() if your compiler has it. Given it is non-standard this is the least recommended option, but you have to do what you gotta do, so use it if you have to (you shouldn't have to though!)

[Kashif]

yep but ihave to give assignment by tomarrow 4 programs and i am afraid to change compiler cause of sytax changes
how can i give
auto increament in space in each out put display
like

1234
12
-------
1234
2468
-------
r=41808

and add resultant outputs (in arays )to
get result shown
for defined inputs its easy but where lines increased arrays also goes up
any simpler way

[Ancient Dragon]

its not nice to post the same question in two different threads. you will probably get mixed results and possibly conflicting answers. The answer I posted at the bottom of your other thread should work with your compiler.

you will have to use

sprintf(...)

Narue gave you an answer for a more modern compiler.

[Kashif]

sorry
but
i just using forum first time and i thought that
quick reply mean online contact
but
i got it
thanx