Fix of minor typos

Author: giangiac

unit_test/include/random_number_generator_test.hpp

@@ -1,6 +1,7 @@
 #ifndef RANDOM_NUMBER_GENERATOR_TEST_HPP
 #define RANDOM_NUMBER_GENERATOR_TEST_HPP
 
+#include <iomanip>
 #include <map>
 
 #include "../../include/qureg.hpp"
@@ -85,7 +86,7 @@ TEST_F(RandomNumberGeneratorTest, Visualization)
             << "(each * corresponds to 100 draws)\n";
   for (auto p : histogram)
   {
-      std::cout << setw(2) << p.first << ' ' << std::string(p.second / 100, '*') << '\n';
+      std::cout << std::setw(2) << p.first << ' ' << std::string(p.second / 100, '*') << '\n';
   }
 }
 

unit_test/include/single_qubit_gates_test.hpp

@@ -113,9 +113,9 @@ TEST_F(SingleQubitGatesTest, CustomGate)
   {
       psi.Apply1QubitGate(qubit, G_);
   }
-  ASSERT_DOUBLE_EQ( psi.GetProbability(0), psi.GetProbability(2) );
   ASSERT_DOUBLE_EQ( psi.GetProbability(4), psi.GetProbability(6) );
   // The accepted error is sometimes exceeded when gcc is used.
+  ASSERT_NEAR( psi.GetProbability(0), psi.GetProbability(2), accepted_error_*10 );
   ASSERT_NEAR( psi.GetProbability(5), 1.-psi.GetProbability(8), accepted_error_*10 );
 }