https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66639
D <dragondreamer at live dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dragondreamer at live dot com
--- Comment #8 from D <dragondreamer at live dot com> ---
This bug is not still yet for __PRETTY_FUNCTION__. The sample code below does
not compile even with GCC 7 (however, works fine in Clang).
//////////////
constexpr bool str_equal(const char* s1, const char* s2) noexcept
{
return !*s1 && !*s2 ? true
: !*s1 ? false
: !*s2 ? false
: *s1 == *s2 ? str_equal(s1 + 1, s2 + 1)
: false;
}
int main()
{
static_assert(str_equal(__PRETTY_FUNCTION__, "int main()"), "test");
}
//////////////
<source>: In function 'int main()':
<source>:12:5: error: non-constant condition for static assertion
static_assert(str_equal(__PRETTY_FUNCTION__, "int main()"), "test");
^~~~~~~~~~~~~
<source>:12:28: in constexpr expansion of 'str_equal(((const char*)(&
__PRETTY_FUNCTION__)), ((const char*)"int main()"))'
<source>:12:5: error: the value of '__PRETTY_FUNCTION__' is not usable in a
constant expression
<source>:12:29: note: '__PRETTY_FUNCTION__' was not declared 'constexpr'
static_assert(str_equal(__PRETTY_FUNCTION__, "int main()"), "test");
^~~~~~~~~~~~~~~~~~~
Compiler exited with result code 1
