------- Comment #2 from gpiez at web dot de 2010-06-11 11:34 -------
Sorry for the unicode mess. The error message is 'error: narrowing conversion
of "(((int)y) + 1)" from "int" to "char" inside { }'.
The same error happens with a non templated function, but if I use two template
parameters, the error disappears, even if they are to large. So this is at
least very inconsistent.
no error:
struct A {
<-->char x;
};
template<char C, char D>void f() {
<-->A a = { C+D };
}
int main() {
<-->f<1,2>();
}
still no error:
struct A {
<-->char x;
};
template<int C, int D>void f() {
<-->A a = { C+D };
}
int main() {
<-->f<1,2>();
}
error:
struct A {
<-->char x;
};
void f(char C, char D) {
<-->A a = { C+D };
}
int main() {
<-->f(1,2);
}
I believe I should not get an error, even if the template parameter type is
larger than a char, as long as the template parameter value fits in in char, so
template<int C> void f() {
char y = 42;
A a = { y+C };
}
should give no error, as long as C fits in a char. IMHO ;-)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44500
