X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/80a1fe1a200a4309c36598571b1f4ccb76a8788f..1d498e972be5597e0f902a1bb8e6ec8d87d51002:/cost_func.cpp

diff --git a/cost_func.cpp b/cost_func.cpp
index d6cba8c..4248c56 100644
--- a/cost_func.cpp
+++ b/cost_func.cpp
@@ -1,5 +1,4 @@
 #include <algorithm>
-#include <functional>
 #include <numeric>
 #include <iterator>
 #include <sstream>
@@ -30,12 +29,10 @@ cost_func::~cost_func()
 
 double cost_func::operator()(double amount) const
 {
-    using std::placeholders::_1;
-    using std::placeholders::_2;
     return std::accumulate(++factors.begin(), factors.end(), factors.front(),
-                           std::bind(std::plus<double>(),
-                                     std::bind(std::multiplies<double>(),
-                                               amount, _1), _2));
+                           [&amount](double a, double b) {
+                               return amount * a + b;
+                           });
 }
 
 std::string cost_func::to_string()