diff --git a/constants.hpp b/constants.hpp
index 02ab0e2..f9f1d07 100644
--- a/constants.hpp
+++ b/constants.hpp
@@ -327,7 +327,7 @@ const __m128i S4_coors_deg_mask2 = _mm_set_epi64x(0x0ULL, 0x1668166816681668ULL)
 const __m128i S4_coors_deg_mask1 = _mm_set_epi64x(0x0ULL, 0x0116011601160116ULL); // 0000 0001 0001 0110
 
 template<int N>
-const array<int, N+1> HWorder_off = [&]
+const array<int, N+1> HWorder_off = []
 {
   array<int, N+1> aHWorder_off;
   aHWorder_off[0] = 0;
@@ -339,7 +339,7 @@ const array<int, N+1> HWorder_off = [&]
 }();
 
 template<int N>
-const array<int, 1<<N> HWorder = [&]
+const array<int, 1<<N> HWorder = []
 {
   array<int, 1<<N> aHWorder;
   int offset[N + 1] = { 0 };
@@ -1089,7 +1089,7 @@ template<int N>
 const Perm_t<N> PE;
 
 template<int N>
-const array<Peigen::function_t<N>, (1<<N)> XE = [&]
+const array<Peigen::function_t<N>, (1<<N)> XE = []
 {
   Peigen::function_t<N> I = Peigen::function_t<N>::INPUT_DEFAULT();
   array<Peigen::function_t<N>, (1<<N)> aXE;
@@ -1106,7 +1106,7 @@ const array<Peigen::function_t<N>, (1<<N)> XE = [&]
 }();
 
 template<int N>
-const bit_slice_t<N> masks = [&]
+const bit_slice_t<N> masks = []
 {
   bit_slice_t<N> amask;
   bit_slice_l_t<N> mask_init;
@@ -1136,7 +1136,7 @@ struct LExinfoGx_t
 };
 
 template<int N>
-const map<array<uint8_t, LUT_UNIT_N>, LExinfoGx_t<N> > G_Rs = [&]
+const map<array<uint8_t, LUT_UNIT_N>, LExinfoGx_t<N> > G_Rs = []
 {
   map<array<uint8_t, LUT_UNIT_N>, LExinfoGx_t<N> > aG_Rs;
   if (N == 4)
diff --git a/main.cpp b/main.cpp
index 53fd5ef..d949af3 100644
--- a/main.cpp
+++ b/main.cpp
@@ -45,11 +45,21 @@
 #include <cstring>
 #include <stdio.h>
 #include <time.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Woverflow"
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+
 #include "faster.hpp"
 #include "func.hpp"
 #include "evaluator.hpp"
 #include "lighter.hpp"
 
+#pragma GCC diagnostic pop
+
 using namespace std;
 using namespace Peigen;
 using namespace Peigen::depth;
diff --git a/subspaces.hpp b/subspaces.hpp
index c78cf46..b451dc7 100644
--- a/subspaces.hpp
+++ b/subspaces.hpp
@@ -51,7 +51,7 @@ using namespace std;
   according to the method used in sagemath reduced_echelon_matrix_iterator() method
 */
 template<int N>
-const vector<vector<vector<uint8_t> > > SubSpaces = [&]
+const vector<vector<vector<uint8_t> > > SubSpaces = []
 {
     if (N <= 8)
     {