AnsiString to int

jessy · 25-02-2003 02:40PM #1

hello all

I need to be able to convert an AnsiString to an int in c++;

dose anyone know how to do this and if so could they please give a code example.

thanks in advance.

Talliesin · 25-02-2003 03:05PM

You can use the C libraries in C++ so

int atoi(const char*)

is available.

You can either use the header <stdlib> or <cstdlib> which merely includes <stdlib> but puts it all in the std namespace (where it belongs).

With streams >> is overloaded to take int& arguments, so if the use of this conversion is with a string from a stream you can just use that instead.

jessy · 25-02-2003 04:42PM

This will work for standard strings in c/c++ but
ansiStrings are different as they are managed
by c++ so it will not work;
maybe if i know how to convert AnsiString to String then i
could used the atoi function;

hussey · 25-02-2003 05:10PM

I haven't tried this myself but

convert the ansistring to char *
and then use the atoi function??

eg.


int convert_ansi_int(AnsiString str) 
{

return atoi(str.c_str());

}

// this is equililebt of this (  I think)
int convert_ansi_int(AnsiString str) 
{

char * tempStr = str.c_str();
int num = atoi(tempStr);
return num;

}

jessy · 26-02-2003 12:46PM

Thanks Hussey that worked fine:D

AnsiString to int

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