• Paul Eggert's avatar
    * data.c: Avoid integer truncation in expressions involving floats. · 0ae6bdee
    Paul Eggert authored
    * data.c: Include <intprops.h>.
    (arith_driver): When there's an integer overflow in an expression
    involving floating point, convert the integers to floating point
    so that the resulting value does not suffer from catastrophic
    integer truncation.  For example, on a 64-bit host (* 4
    most-negative-fixnum 0.5) should yield about -4.6e+18, not zero.
    Do not rely on undefined behavior after integer overflow.
data.c 92.4 KB