Function TrimFlags

src/test/transaction_tests.cpp:122–131

 */

script_verify_flags TrimFlags(script_verify_flags flags)
{
    // WITNESS requires P2SH
    if (!(flags & SCRIPT_VERIFY_P2SH)) flags &= ~SCRIPT_VERIFY_WITNESS;

    // CLEANSTACK requires WITNESS (and transitively CLEANSTACK requires P2SH)
    if (!(flags & SCRIPT_VERIFY_WITNESS)) flags &= ~SCRIPT_VERIFY_CLEANSTACK;
    Assert(IsValidFlagCombination(flags));
    return flags;
}

script_verify_flags FillFlags(script_verify_flags flags)
{