On 2020-Aug-31, Ranier Vilela wrote: > More troubles with undefined-behavior. > > This type of code can leaves overflow: > var = (cast) (expression); > diff = (int32) (id1 - id2); > > See: > diff64 = ((long int) d1 - (long int) d2); > diff64=-4294901760
Did you compile this with gcc -fwrapv? -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
