[Bug c/78736] enum warnings in GCC (request for -Wenum-conversion to be added)

[jg at jguk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78736

--- Comment #17 from Jonny Grant <jg at jguk dot org> ---
Hello Joseph

This was the test case I created. There isn't any warning output when 'a_t' is
converted to 'int'. Or even if it was converted to an 'unsigned int'

https://gcc.gnu.org/ml/gcc-help/2019-07/msg00014.html


//-O2 -Wall -Wextra -Wconversion -Werror

#include <cstddef>
typedef enum
{
    a = -1
} a_t;

a_t f()
{
    return a;
}

int main()
{
    int b = f();
    return b;
}