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Re: conversion between data of a cell of the arrayctrl to int [message #2566 is a reply to message #2564]

Tue, 18 April 2006 00:19

mirek
Messages: 14267
Registered: November 2005

Ultimate Member

forlano wrote on Mon, 17 April 2006 18:11

Hello,

to prevent the crash of my application I used the following conversion to send in the EditInt editRatNat an integer taken from a cell of the arrayctrl

 editRatNat <<= atoi( AsString(arr.Get(int_row, "RatNat")) );

now it works but it was necessary to add even an
#include <cstdlib>
that has the taste of C. Now I'm not sure if atoi() can work with String or at some moment the application will crash. I've ALT+J in String.cpp to understand if AsString return a C string of something else. The result of the investigation was a nightmare Smile

.
The question: does exist a smart U++ way to produce the correct cast or what I have done is enough?

Luigi

First of all, best is simply to store "int" into ArrayCtrl, then you can simply write

editRatNat <<= arr.Get(int_row, "RatNat");

If this for some reason is not possible, your solution seems fine. There are U++ "atoi"s, e.g.

Value StrIntValue(const char *s);
inline int StrInt(const char* s) { return ScanInt(s); }

the important difference is that for empty input, they return Null.

Mirek

[Updated on: Tue, 18 April 2006 01:10]

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