int16_t min  = -32768 0100000 0x8000
int16_t max  = +32767  077777 0x7fff
uint16_t max =  65535 0177777 0xffff
int32_t min  = -2147483648 020000000000 0x80000000
int32_t max  = +2147483647 017777777777 0x7fffffff
uint32_t max =  4294967295 037777777777 0xffffffff
int64_t min  = -9223372036854775808 01000000000000000000000 0x8000000000000000
int64_t max  = +9223372036854775807  0777777777777777777777 0x7fffffffffffffff
uint64_t max = 18446744073709551615 01777777777777777777777 0xffffffffffffffff
----------
******3.14