Capture value evaluation function by value

Otherwise it will go out of scope if a temporary is passed.

diff --git a/source/booleanevaluator.cpp b/source/booleanevaluator.cpp
index 58a6fcf1a682b53aa0c6ef54627a9f7729f7eecd..b7c399f9cbc97c58384f0a732c8a6bf1accdc797 100644 (file)
--- a/source/booleanevaluator.cpp
+++ b/source/booleanevaluator.cpp
@@ -6,7 +6,7 @@ using namespace std;
 using namespace Msp;
 
 BooleanEvaluator::BooleanEvaluator(const ValueFunction &f):
-       func([&f](const string &value, const string *){ return f(value); }),
+       func([f](const string &value, const string *){ return f(value); }),
        ops("&|!")
 { }