Function _normalize_byteorder

numpy/core/src/multiarray/hashdescr.c:39–52

* normalize endian character: always return 'I', '<' or '>' */

 * normalize endian character: always return 'I', '<' or '>'
 */
static char _normalize_byteorder(char byteorder)
{
    switch(byteorder) {
        case '=':
            if (PyArray_GetEndianness() == NPY_CPU_BIG) {
                return '>';
            }
            else {
                return '<';
            }
        default:
            return byteorder;
    }
}

/*
 * Return true if descr is a builtin type