Function "isnull" isn't working properly for me.

Function "isnull" isn't working properly for me. - Printable Version

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+--- Thread: Function "isnull" isn't working properly for me. (/showthread.php?tid=581645)

Function "isnull" isn't working properly for me. - Riwerry - 14.07.2015

Hello, I have a little problem. I have defined isnull function. It works without any problem for usual string:

pawn Код:

new string[] = "Hello.";
if(isnull(string))
{
    //Works
}

But I want to check string like this, but it gives me compile error.

pawn Код:

if(isnull(cmdtext[i + 1]))
{
    //Compile errors
}
//Also this works:
if(!strlen(cmdtext[i + 1]))
{
    //Works
}

So, I have loop to check offset of params in command, and I want to check it, if it's null, but it gives me errors ^. Thanks.

Re: Function "isnull" isn't working properly for me. - Virtual1ty - 14.07.2015

Because "isnull" checks if a given string is NULL and it does so cleverly by checking the first element of string, or the second (if it exists).
If you want to check if a given character is NULL take your pick:

PHP код:



new ch = '\0';


if (ch == '\0')


if (ch == EOS)


if (ch == 0)


// etc.