On 1/24/26 10:23, Martin D Kealey wrote:
On Sat, 24 Jan 2026 at 12:10, Denys Vlasenko <[email protected]> wrote:
Subject: "echo $((0x))" is accepted, treated as 0x0
The subject says it all.
Working as intended and as documented.
This is so that "echo $((0x$foo))" works as intended when foo contains only
hexadecimal digits. Note that the empty string complies with that
requirement.
Got it.
$ digits=''; echo $((0x$digits))
0
But why it's different for
$ digits=''; echo $((16#$digits))
bash: 16#: invalid integer constant (error token is "16#")
