Hex

Function: string hex(integer value);

Returns the hexadecimal nybbles of the signed integer value, in order, prefixed by "0x" or by "-0x", without any leading zeroes.

Parameters:

• integer

value

–

value to be converted

This function works like the hex function of the Python scripting language, doc'ed within http://docs.python.org/lib/built-in-funcs.html. Specifically, this function returns a signed 31-bit result if negative, rather than a 32-bit result. and this function returns the easier-to-type lower case nybbles a la AT&T, rather than the easier-to-read upper case nybbles a la IBM.

Implementation

// http://wiki.secondlife.com/wiki/Hex
string hex(integer value)
{
    if (value == 0) return "0x0";
    if (value == (1 << 31)) { return "-0x80000000"; }
    string nybbles = "";
    while (value)
    {
        integer ny = (value & 0xF);
        nybbles = llGetSubString("0123456789ABCDEF", ny, ny) + nybbles;
        value = (value >> 4);
        value = (value & 0xfffFFFF);
    }
    return "0x" + nybbles;
}

Demo

Print the most astonishing test cases and then also the permission masks of a script.

Code:

default
{
    state_entry()
    {
        llOwnerSay("Hello");
        llOwnerSay(hex(0));
        llOwnerSay(hex(-1));
        llOwnerSay(hex(1 << 30));
        llOwnerSay(hex(-1 & ~-1));
        llOwnerSay("Hello again");
        string item = llGetScriptName();
        llOwnerSay(hex(llGetInventoryPermMask(item, MASK_BASE)));
        llOwnerSay(hex(llGetInventoryPermMask(item, MASK_OWNER)));
        llOwnerSay(hex(llGetInventoryPermMask(item, MASK_GROUP)));
        llOwnerSay(hex(llGetInventoryPermMask(item, MASK_EVERYONE)));
        llOwnerSay(hex(llGetInventoryPermMask(item, MASK_NEXT)));
        llOwnerSay("OK");
    }
}

Sample results:

Hello
0x0
0xFFFFFFFF
0x40000000
0x0
Hello again
0x7FFFFFFF
0x7FFFFFFF
0x0
0x8000
0x8E000
OK

See Also

Functions

• llGetInventoryPermMask
• llGetObjectPermMask
• llList2Integer
• llList2String