sample fix script

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

Author: NikolajBjorner

genaisrc/FixBuildIssue.genai.mjs

@@ -0,0 +1,21 @@
+
+def("FILE", env.files)
+
+def("ERR", "/home/nbjorner/z3/src/nlsat/nlsat_simple_checker.cpp: In member function ‘bool nlsat::simple_checker::imp::Endpoint::operator==(const nlsat::simple_checker::imp::Endpoint&) const’:\
+/home/nbjorner/z3/src/nlsat/nlsat_simple_checker.cpp:63:82: warning: C++20 says that these are ambiguous, even though the second is reversed:\
+   63 |                 if (!m_inf && !rhs.m_inf && m_open == rhs.m_open && m_val == rhs.m_val) {\
+      |                                                                                  ^~~~~\
+In file included from /home/nbjorner/z3/src/util/mpz.h:26,\
+                 from /home/nbjorner/z3/src/util/mpq.h:21,\
+                 from /home/nbjorner/z3/src/util/rational.h:21,\
+                 from /home/nbjorner/z3/src/math/polynomial/algebraic_numbers.h:21,\
+                 from /home/nbjorner/z3/src/nlsat/nlsat_simple_checker.h:20,\
+                 from /home/nbjorner/z3/src/nlsat/nlsat_simple_checker.cpp:1:\
+/home/nbjorner/z3/src/util/scoped_numeral.h:96:17: note: candidate 1: ‘bool operator==(const _scoped_numeral<algebraic_numbers::manager>&, const _scoped_numeral<algebraic_numbers::manager>::numeral&)’\
+   96 |     friend bool operator==(_scoped_numeral const & a, numeral const & b) {\
+      |                 ^~~~~~~~\
+/home/nbjorner/z3/src/util/scoped_numeral.h:96:17: note: candidate 2: ‘bool operator==(const _scoped_numeral<algebraic_numbers::manager>&, const _scoped_numeral<algebraic_numbers::manager>::numeral&)’ (reversed)")
+
+$`You are an expert C++ programmer.
+Your task is to fix the compilation bug reported in the error message ERR.
+How should FILE be changed to fix the error message?`

src/util/scoped_numeral.h

@@ -97,10 +97,19 @@ class _scoped_numeral {
         return a.m().eq(a, b);
     }
 
+    friend bool operator==(_scoped_numeral const & a, _scoped_numeral const & b) {
+        return a.m().eq(a.m_num, b.m_num);
+    }
+
     friend bool operator!=(_scoped_numeral const & a, numeral const & b) {
         return !a.m().eq(a, b);
     }
 
+    friend bool operator!=(_scoped_numeral const & a, _scoped_numeral const & b) {
+        return !(a == b);
+    }
+    
+
     friend bool operator<(_scoped_numeral const & a, numeral const & b) {
         return a.m().lt(a, b);
     }