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Coverity scan complains about this like in regexec.c (and re_exec.c):
assert(!(FLAGS(scan) & ~RXf_PMf_COMPILETIME));
With the message:
CID 451332 (#1-3 of 3): Operands don't affect result (CONSTANT_EXPRESSION_RESULT)result_independent_of_operands: scan->head.data.u_8.flags & 4294965248U /* ~(((((((((1U << 0 + 0) | (1U << 0 + 1)) | (1U << 0 + 2)) | (1U << 0 + 3)) | (1U << 0 + 4)) | (1U << 0 + 6)) | (1U << 0 + 5)) | (7U << 0 + 7)) | (1U << 0 + 10)) */ is always 0 regardless of the values of its operands. This occurs as the logical operand of !.
which happens since the flags member is only and 8 bit value and this code masks it with 4294965248U, which is 0xfffff800.
From looking at the code that uses the flags that make up RXf_PMf_COMPILETIME I'm pretty sure this shouldn't be testing against the flags of the current op, but either against RExC_flags or ARG2i(scan).
@demerphq recently changed this from scan->flags to FLAGS(scan) which I don't think is the cause of Coverity's complaint but the original assertion was added in ec841a2 by @iabyn
Module:
Description
Coverity scan complains about this like in regexec.c (and re_exec.c):
With the message:
which happens since the flags member is only and 8 bit value and this code masks it with 4294965248U, which is 0xfffff800.
From looking at the code that uses the flags that make up RXf_PMf_COMPILETIME I'm pretty sure this shouldn't be testing against the flags of the current op, but either against
RExC_flagsorARG2i(scan).@demerphq recently changed this from
scan->flagstoFLAGS(scan)which I don't think is the cause of Coverity's complaint but the original assertion was added in ec841a2 by @iabynSteps to Reproduce
N/A
Expected behavior
N/A
Perl configuration
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