string literals
Saaa
empty at needmail.com
Sat Jan 26 07:21:42 PST 2008
I finally see what a string literal means, but this code still bothers me.
What does changing a dynamic char[] (str) have to do with the string literal
in str1
>> from the 1.0 documentation:
>>
>> char[] str;
>> char[] str1 = "abc";
>> str[0] = 'b'; // error, "abc" is read only, may crash
>>
>> Is this example correct?
>>
>>
>
> Yes, because the "abc" is a string literal, that is to say it's written in
> the code itself. If str1 was loaded from an outside source, such as a
> file, user input, etc., then you could modify it without issue.
>
> For string LITERALS (a string literal is one you write in the code itself,
> usually encased in double-quotes), modifying them without calling .dup on
> them is bad. For other strings, it's perfectly okay.
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