[algogeeks] Re: Hexadecimal to Decimal
Sure there are other ways. But why duplicate functionality already
built into the language?
Here is one way to write your own conversion function:
int hexToDec(char *string)
{
int x = 0;
for(int i = 0; string[i]; ++i)
{
if (isdigit(string[i]))
x = (x*16) + string[i] - '0';
else if ((string[i] = 'a') (string[i] = 'f'))
x = (x*16) + string[i] - 'a' + 10;
}
return x;
}
On Sep 1, 11:56 am, rajeev bharshetty rajeevr...@gmail.com wrote:
@Don : Thanks , are there any other methods
On Thursday, September 1, 2011, Don wrote:
int n;
char *string = 0xff; // Or whatever
sscanf(string, %x, n);
printf(%d\n, n);
On Sep 1, 11:34 am, rShetty rajeevr...@gmail.com javascript:; wrote:
Given a Hexadecimal value as a string, give a C Code to convert it
into decimal value?
If 0xff then output should be 255.
--
You received this message because you are subscribed to the Google Groups
Algorithm Geeks group.
To post to this group, send email to
algogeeks@googlegroups.comjavascript:;
.
To unsubscribe from this group, send email to
algogeeks+unsubscr...@googlegroups.com javascript:;.
For more options, visit this group at
http://groups.google.com/group/algogeeks?hl=en.
--
Regards
Rajeev N B http://www.opensourcemania.co.cc
*Winners Don't do Different things , they do things Differently*
--
You received this message because you are subscribed to the Google Groups
Algorithm Geeks group.
To post to this group, send email to algogeeks@googlegroups.com.
To unsubscribe from this group, send email to
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: Hexadecimal to Decimal
Sure. Is something wrong with using the functionality already built
into the language?
Here is another way:
int hexToDec(char *string)
{
int x = 0;
for(int i = 0; string[i]; ++i)
{
if (isdigit(string[i]))
x = (x*16) + string[i] - '0';
else if ((string[i] = 'a') (string[i] = 'f'))
x = (x*16) + string[i] - 'a' + 10;
}
return x;
}
Don
On Sep 1, 11:56 am, rajeev bharshetty rajeevr...@gmail.com wrote:
@Don : Thanks , are there any other methods
On Thursday, September 1, 2011, Don wrote:
int n;
char *string = 0xff; // Or whatever
sscanf(string, %x, n);
printf(%d\n, n);
On Sep 1, 11:34 am, rShetty rajeevr...@gmail.com javascript:; wrote:
Given a Hexadecimal value as a string, give a C Code to convert it
into decimal value?
If 0xff then output should be 255.
--
You received this message because you are subscribed to the Google Groups
Algorithm Geeks group.
To post to this group, send email to
algogeeks@googlegroups.comjavascript:;
.
To unsubscribe from this group, send email to
algogeeks+unsubscr...@googlegroups.com javascript:;.
For more options, visit this group at
http://groups.google.com/group/algogeeks?hl=en.
--
Regards
Rajeev N B http://www.opensourcemania.co.cc
*Winners Don't do Different things , they do things Differently*
--
You received this message because you are subscribed to the Google Groups
Algorithm Geeks group.
To post to this group, send email to algogeeks@googlegroups.com.
To unsubscribe from this group, send email to
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: Hexadecimal to Decimal
Of course there are other methods, but why duplicate functionality already provided by the language? Don On Sep 1, 11:34 am, rShetty rajeevr...@gmail.com wrote: Given a Hexadecimal value as a string, give a C Code to convert it into decimal value? If 0xff then output should be 255. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: Hexadecimal to Decimal
Don's method is the best that I can think of. On Thu, Sep 1, 2011 at 1:24 PM, Don dondod...@gmail.com wrote: Of course there are other methods, but why duplicate functionality already provided by the language? Don On Sep 1, 11:34 am, rShetty rajeevr...@gmail.com wrote: Given a Hexadecimal value as a string, give a C Code to convert it into decimal value? If 0xff then output should be 255. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- from Yuchen Liao via Gmail -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: Hexadecimal to Decimal
The language does give it tyou in sscanf, but sscanf is a pretty big
function and in some environments, like small embedded ones, you don't
get the luxury of using a big block of code to do a small thing.
unsigned hex_to_unsigned(char *p)
{
unsigned val = 0;
while (*p != '\0') {
char c = *p++;
if ('a' = c c = 'f')
val = (val 4) + (c - 'a' + 10);
else if ('A' = c c = 'F')
val = (val 4) + (c - 'A' + 10);
else if ('0' = c c = '9')
val = (val 4) + (c - '0');
else break; // quit early on non-hex char
}
return val;
}
On Sep 1, 12:34 pm, rShetty rajeevr...@gmail.com wrote:
Given a Hexadecimal value as a string, give a C Code to convert it
into decimal value?
If 0xff then output should be 255.
--
You received this message because you are subscribed to the Google Groups
Algorithm Geeks group.
To post to this group, send email to algogeeks@googlegroups.com.
To unsubscribe from this group, send email to
algogeeks+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/algogeeks?hl=en.
