Fix seg fault handling template parameter expressions containing '<='

Recent commits ensure types are correctly stored in SwigType *. In
particular template parameters are enclosed within '<(' and ')>'.
Now we can confidently handle template parameters as really being
delimited as such to fix an infinite loop handling template expressions
containing '<' or '>'. The previous implementation only assumed
template parameters were delimited by '<' and '>'.

Issue #1037

1 files changed, 13 insertions, 0 deletions

diff --git a/Examples/test-suite/cpp17_enable_if_t.i b/Examples/test-suite/cpp17_enable_if_t.i
index b361775d0..7c188dcfa 100644
--- a/Examples/test-suite/cpp17_enable_if_t.i
+++ b/Examples/test-suite/cpp17_enable_if_t.i
@@ -37,3 +37,16 @@ void tester() {
 
 // non-type template parameters working well in SWIG, below is a simple workaround as the 3rd parameter is defaulted for enable_if_t (which is just SFINAE to give a nice C++ compiler error)
 %template(enableif5) enableif5<int, int, true>; // workaround
+
+
+%inline %{
+// #1037 infinite loop
+template <typename T, std::enable_if_t<sizeof(T) <= 4>>
+void destId(T el) {}
+
+/*
+not yet fixed
+template <typename T, std::enable_if_t<sizeof(T) >= 3>>
+void destId(const T& el) {}
+*/
+%}