I would recommend to just get rid of the first "non-numerical" characters
and use atoi function. Something like:
char *get_first_num(char *s)
{
while( (*s < '0') || (*s >'9') )
++s;
return s;
}
int main()
{
char *a = "b005b";
cout << atoi(get_first_num(a)) << endl;
return 0;
}
So then you can compare your numbers as:
atoi(get_first_num(a)) < atoi(get_first_num(b))
On Tuesday, 17 April 2012 20:18:13 UTC-7, Abhishek wrote:
>
> Hi,
>
> I need to compare string into following way. Can anyone provide me some
> insight or algorithm in c++.
>
> For example:
>
> "a5" < "a11" - because 5 is less than 11
> "6xxx < 007asdf" - because 6 < 7
> "00042Q < 42s" - because Q < s alphabetically
> "6 8" < "006 9" - because 8 < 9
>
>
>
> Thx in advance
>
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