SIGNED_VALUE_MAX   43 ext/bigdecimal/bigdecimal.c #define MUL_OVERFLOW_SIGNED_VALUE_P(a, b) MUL_OVERFLOW_SIGNED_INTEGER_P(a, b, SIGNED_VALUE_MIN, SIGNED_VALUE_MAX)
SIGNED_VALUE_MAX 5419 ext/bigdecimal/bigdecimal.c                 SIGNED_VALUE_MAX - (exp_chr[i] - '0') < e * 10)