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Function to convert integer to single char.
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Hello, I'm new to C and having this problem. What I need to do is add a single integer (0-9) to an (obviously char) string. More specifically, I want to add the value of a function that returns an integer (0-9) to a string. I don't want to change the integer value in any way, just to convert it to a form in which I could add it to a string.
I have checked out the itoa() function, but apparently it only stores the converted integer into a whole new string, not a single subscript/element of a string as I need.
Also, the function should return as a value the integer in the char form that it needs to be in order for it to be stored in the string.
"Pseudocode" example: TheString[i]=ConvertToInt(FunctionThatReturnsInt());
Does a function like this exist in C? (If not, I guess I will have to code it, but I'd hate to "re-invent the wheel", so I am asking
) Thanks.
I have checked out the itoa() function, but apparently it only stores the converted integer into a whole new string, not a single subscript/element of a string as I need.
Also, the function should return as a value the integer in the char form that it needs to be in order for it to be stored in the string.
"Pseudocode" example: TheString[i]=ConvertToInt(FunctionThatReturnsInt());
Does a function like this exist in C? (If not, I guess I will have to code it, but I'd hate to "re-invent the wheel", so I am asking
) Thanks. 
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Join Date: Dec 2004
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I'm not a C guy by any means, but I think you can cast it.... such as:
Someone who Codes a lot of C, please check this over...
C Syntax (Toggle Plain Text)
Someone who Codes a lot of C, please check this over...
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Join Date: Apr 2004
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For a value 0-9, you can just add '0' to get the corresponding digit character.
#include <stdio.h>
int main(void)
{
char text[] = "StringX";
int digit;
for (digit = 0; digit < 10; ++digit)
{
text[6] = digit + '0';
puts(text);
}
return 0;
}
/* my output
String0
String1
String2
String3
String4
String5
String6
String7
String8
String9
*/ "One of the methods used by statists to destroy capitalism consists in establishing controls that tie a given industry hand and foot, making it unable to solve its problems, then declaring that freedom has failed and stronger controls are necessary." --Ayn Rand
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Join Date: Feb 2005
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Posting Pro in Training
gebbit, you can also look into sprintf, which gives you a lot of options.
Thank you Dave Sinkula. Adding "+ '0'" works fine.
It took me a little to understand why exactly it works though. :o Thanks again.
It took me a little to understand why exactly it works though. :o Thanks again.
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Originally Posted by winbatch
gebbit, you can also look into sprintf, which gives you a lot of options.
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Join Date: Feb 2005
Posts: 466
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Solved Threads: 18
Posting Pro in Training
you can do this:
char temp[10];
int num = 3;
sprintf( temp, "String%d", num);
char temp[10];
int num = 3;
sprintf( temp, "String%d", num);
man its easy u have to use ascii code i will show u how with a simple program ok i hope this could help you and pls send me a reply telling me if thats what ur looking for :this silly software works o 0 to 9;
#include<iostream.h>
int main ()
{
int a;
cout<<"enter nnumber";
cin>>a;
char x;
x=a+48;
cout<<x<<endl;
return 0;
}
#include<iostream.h>
int main ()
{
int a;
cout<<"enter nnumber";
cin>>a;
char x;
x=a+48;
cout<<x<<endl;
return 0;
}
when u put 0 in variable a , x holds a+48 this is the simple formula
to do a large number like 1234...etc u have to devide the number and put it in an array then switch each array element to type char and they put them in a char element or u just cout them ur welcome
to do a large number like 1234...etc u have to devide the number and put it in an array then switch each array element to type char and they put them in a char element or u just cout them ur welcome
if ur looking for a function i will post it, it is also 1 interger from 0 to 9 i will do later a small program for larger integers:
c Syntax (Toggle Plain Text)
Last edited by WolfPack; Jan 21st, 2008 at 11:50 am. Reason: added [code=c][/code] tags. Next time use them when posting code.
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