Correctly set values on main diagonal of POSIX precedence matrix (configuration compa...

It doesn't show any difference on the tests, probably because previously
these values were set to zero, which unpacks to symmetrical (though
incorrect) values, and thus doesn't affect comparison.

diff --git a/re2c/src/dfa/closure_posix.cc b/re2c/src/dfa/closure_posix.cc
index c17c1049c3fae2d4cc4576b229062f578a9d2b31..dcadd3bbd9cd654bea96cd364cbdfc200c455d43 100644 (file)
--- a/re2c/src/dfa/closure_posix.cc
+++ b/re2c/src/dfa/closure_posix.cc
@@ -308,6 +308,7 @@ void orders(determ_context_t &ctx)
     const size_t nclos = closure.size();
 
     prectable_t *prectbl = ctx.dc_allocator.alloct<prectable_t>(nclos * nclos);
+    static const int32_t P0 = pack(MAX_RHO, 0);
 
     for (size_t i = 0; i < nclos; ++i) {
         for (size_t j = i + 1; j < nclos; ++j) {
@@ -316,7 +317,7 @@ void orders(determ_context_t &ctx)
             prectbl[i * nclos + j] = pack(rho1, l);
             prectbl[j * nclos + i] = pack(rho2, -l);
         }
-        prectbl[i * nclos + i] = 0;
+        prectbl[i * nclos + i] = P0;
     }
 
     ctx.dc_prectbl = prectbl;