Segmentation Fault with user defined rule

[ydaveluy]

Hello,

I noticed that the test UserRuleTest.User_defined_rule_test crash with a segmentation fault.

The problem is hidden when running the test with ctest and appears when executing build/test/peglib-test-main directly.

The segfault appears because ope.ope_ is null :

cpp-peglib/peglib.h

Line 2062 in 2ab5d27

void visit(Holder &ope) override { ope.ope_->accept(*this); }

[yhirose]

@ydaveluy thanks for your report!