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hi,
I have one csv file that some columns are include parameters same "TakeProfit_II=440"
I read data and save all in vector. I want know how to extract digit than this string.
For example extract 440 than "TakeProfit_II=440"
Regards,
Posted 9-Jan-12 10:11am
Rezame1K
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Solution 1

If you now the format of the data could you use simply: sscanf[^]
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Comments
Rezame 10-Jan-12 5:10am
   
Hi,
Thanks. I used above function but not return correct number.
Regards,
Mika Wendelius 10-Jan-12 14:25pm
   
What kind of format did you use?
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Solution 2

You can use boost lexcical_cast.
Below is the link:
Boost Lexical cast[^]
Use this if your are already having boost. Else boost is a mega download. But boost is very good if you really want to work in hardcore C++.
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Solution 3

You can use Tokenize[^] metod from CString to split the string and try to select only the number part
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v2
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Solution 4

You can make a function that parses the string

char *str="TakeProfit_II=440"
int value = get_value(str);
 
...
 
int get_value(char *str)
{
     char *value_str = new char[10];
     int index1 = 0;
     int index2 = 0;
     int i = 0;
     int val = 0;
     
     while(str[index1] != '=')
     {
          index1++;
     }
     
     for(i = index1+1 ; i < strlen(str) ; i++)
     {
          value_str[index2] = str[i];
          index2++;
     }
 
     value_str[index2] = NULL;
 
     val = atoi(value_str);
     delete []value_str;
     return val; 
 
}

I hope it helps.

Best regards
Filipe
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v2

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