On 12/3/21 9:12 PM, Jonathan Wakely wrote:
On Fri, 3 Dec 2021, 18:58 Dr. Jürgen Sauermann,
mailto:m...@juergen-sauermann.de>> wrote:
Hi,
not sure if this matters or how int can be fixed, but today I
observed
the following:
Your web page says that "Static assertions" are supported by GCC
since
version 4.3.
Today I tried to use "Static assertions" on an avr-g++ resp. avr-gcc
which identifies
itself as:
eedjsa@server68:~/projects/AVR_workspace/ATMEGA8U2_32U2$ avr-g++
--version
avr-g++ (GCC) 5.4.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
eedjsa@server68:~/projects/AVR_workspace/ATMEGA8U2_32U2$ avr-gcc
--version
avr-gcc (GCC) 5.4.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
but it seems not to support static assertions.
The "regular" g++ works:
eedjsa@server68:~/projects/AVR_workspace/ATMEGA8U2_32U2$ echo '
static_assert(0, "error"); int main() {}' | g++ -S -o /dev/null -x
c++ -
:2:15: error: static assertion failed: error
while the avr-g++ fails:
eedjsa@server68:~/projects/AVR_workspace/ATMEGA8U2_32U2$ echo '
static_assert(0, "error"); int main() {}' | avr-g++ -S -o
/dev/null -x c++ -
:2:14: error: expected constructor, destructor, or type
conversion before ‘(’ token
Maybe this should be mentioned on the web page.
Static assertions are a C++11 feature, so you simply need to use
-std=c++11 or -std=gnu++11
Hi Jonathan,
thanks a lot. This works indeed, even with avr-gcc/g++.
