From 51e30e77d1b28b4314cb58fb184238eac771857e Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Wed, 12 Mar 2025 16:08:25 +0100
Subject: [PATCH 1/9] added godbolt links to chapter 01

---
 01_values/01_01_basic_values.cpp                   | 2 +-
 01_values/01_02_basic_references.cpp               | 2 +-
 01_values/01_03_lifecycle_creation_destruction.cpp | 2 +-
 01_values/01_04_lifecycle_copy_construction.cpp    | 2 +-
 01_values/01_05_lifecycle_raii.cpp                 | 1 +
 01_values/01_06_advanced_string.cpp                | 2 +-
 01_values/01_07_advanced_string_move.cpp           | 2 +-
 7 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/01_values/01_01_basic_values.cpp b/01_values/01_01_basic_values.cpp
index 9903b20..01520eb 100644
--- a/01_values/01_01_basic_values.cpp
+++ b/01_values/01_01_basic_values.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/cfqo6YK7K
 #include <iostream>
 
 void f_int(int i) {
diff --git a/01_values/01_02_basic_references.cpp b/01_values/01_02_basic_references.cpp
index d596334..c3ed916 100644
--- a/01_values/01_02_basic_references.cpp
+++ b/01_values/01_02_basic_references.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/sGeWevjcv
 #include <iostream>
 
 // we read "int&" as "integer reference"
diff --git a/01_values/01_03_lifecycle_creation_destruction.cpp b/01_values/01_03_lifecycle_creation_destruction.cpp
index 27a424b..66e3b20 100644
--- a/01_values/01_03_lifecycle_creation_destruction.cpp
+++ b/01_values/01_03_lifecycle_creation_destruction.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/eb5qK3KxE
 #include <iostream>
 
 // a "struct" is just like a class, except for default visibility being "public"
diff --git a/01_values/01_04_lifecycle_copy_construction.cpp b/01_values/01_04_lifecycle_copy_construction.cpp
index 593727a..7a96618 100644
--- a/01_values/01_04_lifecycle_copy_construction.cpp
+++ b/01_values/01_04_lifecycle_copy_construction.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/o4MEPEjY1
 #include <iostream>
 
 struct C {
diff --git a/01_values/01_05_lifecycle_raii.cpp b/01_values/01_05_lifecycle_raii.cpp
index 670101e..ad9e52f 100644
--- a/01_values/01_05_lifecycle_raii.cpp
+++ b/01_values/01_05_lifecycle_raii.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/zGsrxG91Y
 #include <iostream>
 #include <fstream>
 
diff --git a/01_values/01_06_advanced_string.cpp b/01_values/01_06_advanced_string.cpp
index b1f3b64..36ba299 100644
--- a/01_values/01_06_advanced_string.cpp
+++ b/01_values/01_06_advanced_string.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/9bYz4oP3z
 #include <stdlib.h>
 #include <string.h>
 #include <iostream>
diff --git a/01_values/01_07_advanced_string_move.cpp b/01_values/01_07_advanced_string_move.cpp
index fedfa39..acb6ab3 100644
--- a/01_values/01_07_advanced_string_move.cpp
+++ b/01_values/01_07_advanced_string_move.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/qKef3jdWq
 #include <stdlib.h>
 #include <string.h>
 #include <iostream>

From 0ff70eb9651b26d9b402a53f9d7acc70dc7039fc Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Wed, 12 Mar 2025 16:34:19 +0100
Subject: [PATCH 2/9] added godbolt links to chapter 02

Not all files got a godbolt link, as some aren't supposed to compile but only show bad/better design
---
 02_classes_and_interfaces/02_01_basic_interfaces.cpp      | 2 +-
 02_classes_and_interfaces/02_04_return_smart_pointers.cpp | 1 +
 02_classes_and_interfaces/02_07_virtual_inheritance.cpp   | 1 +
 02_classes_and_interfaces/02_08_private_inheritance.cpp   | 1 +
 02_classes_and_interfaces/02_09_operator_overloading.cpp  | 1 +
 02_classes_and_interfaces/02_10_friends.cpp               | 1 +
 02_classes_and_interfaces/02_11_hidden_friends.cpp        | 1 +
 7 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/02_classes_and_interfaces/02_01_basic_interfaces.cpp b/02_classes_and_interfaces/02_01_basic_interfaces.cpp
index 6e6c5fc..bd6c6fd 100644
--- a/02_classes_and_interfaces/02_01_basic_interfaces.cpp
+++ b/02_classes_and_interfaces/02_01_basic_interfaces.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/TGqsGba5x
 // Some examples are taken (or minimally adapted) from the C++ Core Guidelines
 
 #include <cmath>
diff --git a/02_classes_and_interfaces/02_04_return_smart_pointers.cpp b/02_classes_and_interfaces/02_04_return_smart_pointers.cpp
index 1e6c3c5..90edab2 100644
--- a/02_classes_and_interfaces/02_04_return_smart_pointers.cpp
+++ b/02_classes_and_interfaces/02_04_return_smart_pointers.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/W7T7dKnoe
 #include <iostream>
 #include <memory>
 
diff --git a/02_classes_and_interfaces/02_07_virtual_inheritance.cpp b/02_classes_and_interfaces/02_07_virtual_inheritance.cpp
index fd5ff64..c8be0ef 100644
--- a/02_classes_and_interfaces/02_07_virtual_inheritance.cpp
+++ b/02_classes_and_interfaces/02_07_virtual_inheritance.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/c9EvnWffo
 #include <iostream>
 
 class A {
diff --git a/02_classes_and_interfaces/02_08_private_inheritance.cpp b/02_classes_and_interfaces/02_08_private_inheritance.cpp
index 7cdb4d5..99837c9 100644
--- a/02_classes_and_interfaces/02_08_private_inheritance.cpp
+++ b/02_classes_and_interfaces/02_08_private_inheritance.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/sWzYq9Mnj
 #include <vector>
 #include <iostream>
 
diff --git a/02_classes_and_interfaces/02_09_operator_overloading.cpp b/02_classes_and_interfaces/02_09_operator_overloading.cpp
index 123eee4..43e2980 100644
--- a/02_classes_and_interfaces/02_09_operator_overloading.cpp
+++ b/02_classes_and_interfaces/02_09_operator_overloading.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/ns1xecTfb
 #include <iostream>
 #include <iomanip>
 
diff --git a/02_classes_and_interfaces/02_10_friends.cpp b/02_classes_and_interfaces/02_10_friends.cpp
index 150f388..7198f60 100644
--- a/02_classes_and_interfaces/02_10_friends.cpp
+++ b/02_classes_and_interfaces/02_10_friends.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/KeThK93ox
 #include <string>
 #include <iostream>
 
diff --git a/02_classes_and_interfaces/02_11_hidden_friends.cpp b/02_classes_and_interfaces/02_11_hidden_friends.cpp
index d0d4539..7532496 100644
--- a/02_classes_and_interfaces/02_11_hidden_friends.cpp
+++ b/02_classes_and_interfaces/02_11_hidden_friends.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/YEcffEEzo
 #include <string>
 #include <iostream>
 

From 2972d891c0c1e015b789815f7cd8d5eb90d7b9ba Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Wed, 12 Mar 2025 20:31:17 +0100
Subject: [PATCH 3/9] added godbolt links to chapter 03

---
 03_lambdas_and_algorithms/03_01_containers_sequence.cpp    | 1 +
 03_lambdas_and_algorithms/03_02_containers_associative.cpp | 1 +
 03_lambdas_and_algorithms/03_03_containers_unordered.cpp   | 1 +
 03_lambdas_and_algorithms/03_04_iterators.cpp              | 1 +
 03_lambdas_and_algorithms/03_05_lambda_basics.cpp          | 1 +
 03_lambdas_and_algorithms/03_07_lambda_implementation.cpp  | 1 +
 03_lambdas_and_algorithms/03_08_alg_examples.cpp           | 1 +
 03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp      | 2 +-
 8 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/03_lambdas_and_algorithms/03_01_containers_sequence.cpp b/03_lambdas_and_algorithms/03_01_containers_sequence.cpp
index ddf8b41..b0e2fa7 100644
--- a/03_lambdas_and_algorithms/03_01_containers_sequence.cpp
+++ b/03_lambdas_and_algorithms/03_01_containers_sequence.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/KhT8er4Wr
 #include <array>
 #include <vector>
 #include <deque>
diff --git a/03_lambdas_and_algorithms/03_02_containers_associative.cpp b/03_lambdas_and_algorithms/03_02_containers_associative.cpp
index cc70d9a..63302e8 100644
--- a/03_lambdas_and_algorithms/03_02_containers_associative.cpp
+++ b/03_lambdas_and_algorithms/03_02_containers_associative.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/q19so8Ya9
 #include <set>
 #include <map>
 
diff --git a/03_lambdas_and_algorithms/03_03_containers_unordered.cpp b/03_lambdas_and_algorithms/03_03_containers_unordered.cpp
index a1c0edc..2a0458d 100644
--- a/03_lambdas_and_algorithms/03_03_containers_unordered.cpp
+++ b/03_lambdas_and_algorithms/03_03_containers_unordered.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/bWY3jMqn8
 #include <unordered_set>
 
 #include <iostream>
diff --git a/03_lambdas_and_algorithms/03_04_iterators.cpp b/03_lambdas_and_algorithms/03_04_iterators.cpp
index 4e9cbe1..ded8d09 100644
--- a/03_lambdas_and_algorithms/03_04_iterators.cpp
+++ b/03_lambdas_and_algorithms/03_04_iterators.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/55rEh1avj
 #include <vector>
 #include <map>
 #include <string>
diff --git a/03_lambdas_and_algorithms/03_05_lambda_basics.cpp b/03_lambdas_and_algorithms/03_05_lambda_basics.cpp
index 98eebf6..4627161 100644
--- a/03_lambdas_and_algorithms/03_05_lambda_basics.cpp
+++ b/03_lambdas_and_algorithms/03_05_lambda_basics.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/h8xMTYjj1
 #include <vector>
 #include <functional>
 #include <iostream>
diff --git a/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp b/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp
index 3fd73fa..90da76e 100644
--- a/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp
+++ b/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/W3T5oG5sc
 #include <iostream>
 
 void test1() {
diff --git a/03_lambdas_and_algorithms/03_08_alg_examples.cpp b/03_lambdas_and_algorithms/03_08_alg_examples.cpp
index 5a0d4ff..00afef6 100644
--- a/03_lambdas_and_algorithms/03_08_alg_examples.cpp
+++ b/03_lambdas_and_algorithms/03_08_alg_examples.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/ssKxxnb7q
 #include <iostream>
 #include <vector>
 #include <algorithm>
diff --git a/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp b/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp
index 2448eb6..6e28732 100644
--- a/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp
+++ b/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp
@@ -1,5 +1,5 @@
 // g++ main.cpp -O3 -std=c++20 -ltbb -Wall -Wextra -o main
-
+// https://godbolt.org/z/jso53sM1o
 #include <algorithm>
 #include <iomanip>
 #include <numeric>

From a5152180e03cdaf4ab3af343cf516baa2bfa1f7e Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Wed, 12 Mar 2025 20:43:06 +0100
Subject: [PATCH 4/9] added godbolt links to chapter 04

---
 04_templates/04_01_function_templates_basic.cpp      | 2 +-
 04_templates/04_02_template_parameter_categories.cpp | 1 +
 04_templates/04_03_template_parameter_packs.cpp      | 1 +
 04_templates/04_04_template_arguments.cpp            | 1 +
 04_templates/04_05_class_template_basics.cpp         | 1 +
 04_templates/04_06_template_specialization.cpp       | 1 +
 04_templates/04_07_class_template_arg_deduction.cpp  | 2 +-
 04_templates/04_08_variable_templates.cpp            | 2 +-
 04_templates/04_09_alias_templates.cpp               | 2 ++
 04_templates/04_10_two_phase_lookup.cpp              | 1 +
 04_templates/04_11_parsing_hints.cpp                 | 1 +
 11 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/04_templates/04_01_function_templates_basic.cpp b/04_templates/04_01_function_templates_basic.cpp
index 34bfb4e..63a6b99 100644
--- a/04_templates/04_01_function_templates_basic.cpp
+++ b/04_templates/04_01_function_templates_basic.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/6M7sfK3jT
 #if true
 
 int abs(int x) {
diff --git a/04_templates/04_02_template_parameter_categories.cpp b/04_templates/04_02_template_parameter_categories.cpp
index a7f5f84..0e77456 100644
--- a/04_templates/04_02_template_parameter_categories.cpp
+++ b/04_templates/04_02_template_parameter_categories.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/Wzx9GnzoT
 #include <array>
 #include <iostream>
 #include <string>
diff --git a/04_templates/04_03_template_parameter_packs.cpp b/04_templates/04_03_template_parameter_packs.cpp
index 59a579e..2ffc713 100644
--- a/04_templates/04_03_template_parameter_packs.cpp
+++ b/04_templates/04_03_template_parameter_packs.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/brz64acKa
 #include <unordered_set>
 
 #include <iostream>
diff --git a/04_templates/04_04_template_arguments.cpp b/04_templates/04_04_template_arguments.cpp
index 00fe4da..62c515e 100644
--- a/04_templates/04_04_template_arguments.cpp
+++ b/04_templates/04_04_template_arguments.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/Gxn7Y7Tes
 #include <iostream>
 #include <vector>
 #include <list>
diff --git a/04_templates/04_05_class_template_basics.cpp b/04_templates/04_05_class_template_basics.cpp
index f582033..eb08ea1 100644
--- a/04_templates/04_05_class_template_basics.cpp
+++ b/04_templates/04_05_class_template_basics.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/WE1YqvP7j
 #include <initializer_list>
 #include <algorithm>
 
diff --git a/04_templates/04_06_template_specialization.cpp b/04_templates/04_06_template_specialization.cpp
index ab3f87c..7911605 100644
--- a/04_templates/04_06_template_specialization.cpp
+++ b/04_templates/04_06_template_specialization.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/Yox7Y53We
 #include <initializer_list>
 #include <algorithm>
 
diff --git a/04_templates/04_07_class_template_arg_deduction.cpp b/04_templates/04_07_class_template_arg_deduction.cpp
index f1f8a4d..00b5b89 100644
--- a/04_templates/04_07_class_template_arg_deduction.cpp
+++ b/04_templates/04_07_class_template_arg_deduction.cpp
@@ -1,5 +1,5 @@
 // you can see this example working with recent GCC and Clang versions here:
-// https://godbolt.org/z/WzFsJp
+// https://godbolt.org/z/r6Ysq4dPe
 
 #include <algorithm>
 #include <type_traits>
diff --git a/04_templates/04_08_variable_templates.cpp b/04_templates/04_08_variable_templates.cpp
index c0d3da0..6feccbc 100644
--- a/04_templates/04_08_variable_templates.cpp
+++ b/04_templates/04_08_variable_templates.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/8PKz1bnYr
 // variable template for pi
 
 template<class T>
diff --git a/04_templates/04_09_alias_templates.cpp b/04_templates/04_09_alias_templates.cpp
index fd24655..9d57405 100644
--- a/04_templates/04_09_alias_templates.cpp
+++ b/04_templates/04_09_alias_templates.cpp
@@ -1,3 +1,5 @@
+// https://godbolt.org/z/PKTGr39Gh
+#include <algorithm> 
 #include <initializer_list>
 
 template<typename ScalarType, int Length>
diff --git a/04_templates/04_10_two_phase_lookup.cpp b/04_templates/04_10_two_phase_lookup.cpp
index c3364c2..666117b 100644
--- a/04_templates/04_10_two_phase_lookup.cpp
+++ b/04_templates/04_10_two_phase_lookup.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/PM8edoq9f
 #include <iostream>
 
 /// Non-dependent name
diff --git a/04_templates/04_11_parsing_hints.cpp b/04_templates/04_11_parsing_hints.cpp
index 18f963e..fa1bb80 100644
--- a/04_templates/04_11_parsing_hints.cpp
+++ b/04_templates/04_11_parsing_hints.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/fM678oGcf
 #include <iostream>
 
 /// Dependent name

From 4c3a4092646cfc2a431008c2c7ed99048d767c53 Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Thu, 13 Mar 2025 16:54:13 +0100
Subject: [PATCH 5/9] added godbolt links to chapter 05

---
 05_keyword_safari/05_01_storage_classes.cpp       | 2 +-
 05_keyword_safari/05_02_static_initialization.cpp | 1 +
 05_keyword_safari/05_03_cv_qualification.cpp      | 1 +
 05_keyword_safari/05_04_static_members.cpp        | 2 +-
 05_keyword_safari/05_05_explicit_constructors.cpp | 1 +
 05_keyword_safari/05_06_member_ref_qualifiers.cpp | 2 +-
 05_keyword_safari/05_07_mutable_data_members.cpp  | 2 +-
 05_keyword_safari/05_08_constexpr.cpp             | 3 +--
 05_keyword_safari/05_09_constevalinit.cpp         | 2 +-
 9 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/05_keyword_safari/05_01_storage_classes.cpp b/05_keyword_safari/05_01_storage_classes.cpp
index 1dc6aeb..9ca0993 100644
--- a/05_keyword_safari/05_01_storage_classes.cpp
+++ b/05_keyword_safari/05_01_storage_classes.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/xPhrhdYs9
 
 int global1;
 // global1: static storage duration, external linkage
diff --git a/05_keyword_safari/05_02_static_initialization.cpp b/05_keyword_safari/05_02_static_initialization.cpp
index b038980..25e2a47 100644
--- a/05_keyword_safari/05_02_static_initialization.cpp
+++ b/05_keyword_safari/05_02_static_initialization.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/csjnTxjcT
 #include <iostream>
 
 struct Trace {
diff --git a/05_keyword_safari/05_03_cv_qualification.cpp b/05_keyword_safari/05_03_cv_qualification.cpp
index 7b7b2fa..e275b56 100644
--- a/05_keyword_safari/05_03_cv_qualification.cpp
+++ b/05_keyword_safari/05_03_cv_qualification.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/b3vzz9rdd
 
 void take_int_ref(int& i) {}
 
diff --git a/05_keyword_safari/05_04_static_members.cpp b/05_keyword_safari/05_04_static_members.cpp
index c128a9c..b0702ff 100644
--- a/05_keyword_safari/05_04_static_members.cpp
+++ b/05_keyword_safari/05_04_static_members.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/GvqvYEW1o
 #include <iostream>
 
 struct Foo {
diff --git a/05_keyword_safari/05_05_explicit_constructors.cpp b/05_keyword_safari/05_05_explicit_constructors.cpp
index aab11bf..ff487e8 100644
--- a/05_keyword_safari/05_05_explicit_constructors.cpp
+++ b/05_keyword_safari/05_05_explicit_constructors.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/hnhxejcfE
 #include <iostream>
 
 struct Point {
diff --git a/05_keyword_safari/05_06_member_ref_qualifiers.cpp b/05_keyword_safari/05_06_member_ref_qualifiers.cpp
index 633e3ab..fa550a9 100644
--- a/05_keyword_safari/05_06_member_ref_qualifiers.cpp
+++ b/05_keyword_safari/05_06_member_ref_qualifiers.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/v757ca5oW
 class Vector {
 	float contents[10];
 
diff --git a/05_keyword_safari/05_07_mutable_data_members.cpp b/05_keyword_safari/05_07_mutable_data_members.cpp
index eb9f36e..793e0ad 100644
--- a/05_keyword_safari/05_07_mutable_data_members.cpp
+++ b/05_keyword_safari/05_07_mutable_data_members.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/43GhsYxnc
 class ComplexShape {
 	mutable bool volumeCalculated = false;
 	mutable double volume;
diff --git a/05_keyword_safari/05_08_constexpr.cpp b/05_keyword_safari/05_08_constexpr.cpp
index 5d95347..b098124 100644
--- a/05_keyword_safari/05_08_constexpr.cpp
+++ b/05_keyword_safari/05_08_constexpr.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/oTaPxP6Ec
 #include <iostream>
 
 constexpr int fac(int n) {
@@ -16,4 +16,3 @@ int main() {
 	constN<fac(4)> out1;
 }
 
-// https://godbolt.org/g/XoaGL9
diff --git a/05_keyword_safari/05_09_constevalinit.cpp b/05_keyword_safari/05_09_constevalinit.cpp
index 93796e2..4876ec2 100644
--- a/05_keyword_safari/05_09_constevalinit.cpp
+++ b/05_keyword_safari/05_09_constevalinit.cpp
@@ -1,5 +1,5 @@
 // Sample adapted from cppreference
-// Available in compiler explorer: https://godbolt.org/z/7YY3sb9YP
+// Available in compiler explorer: https://godbolt.org/z/oKf63hzaE
 
 #include <iostream>
 

From ab5440fd2c3f352b24139d178a0dc0a2b88dcad4 Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Thu, 13 Mar 2025 16:56:54 +0100
Subject: [PATCH 6/9] added godbolt links to chapter 06

---
 06_advanced_templates/06_01_simple_template_metafunction.cpp | 1 +
 06_advanced_templates/06_02_type_parameter.cpp               | 1 +
 06_advanced_templates/06_03_type_result.cpp                  | 1 +
 06_advanced_templates/06_04_refactoring_conventions.cpp      | 1 +
 06_advanced_templates/06_05_tuple_includes.cpp               | 1 +
 06_advanced_templates/06_06_tuple_includes_prime.cpp         | 1 +
 06_advanced_templates/06_07_dispatch.cpp                     | 1 +
 06_advanced_templates/06_08_decltype_declval.cpp             | 1 +
 06_advanced_templates/06_09_sfinae.cpp                       | 1 +
 06_advanced_templates/06_10_crtp.cpp                         | 1 +
 10 files changed, 10 insertions(+)

diff --git a/06_advanced_templates/06_01_simple_template_metafunction.cpp b/06_advanced_templates/06_01_simple_template_metafunction.cpp
index 01b72e1..8a9e829 100644
--- a/06_advanced_templates/06_01_simple_template_metafunction.cpp
+++ b/06_advanced_templates/06_01_simple_template_metafunction.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/oaWPrb6e5
 #include <iostream>
 #include <climits>
 
diff --git a/06_advanced_templates/06_02_type_parameter.cpp b/06_advanced_templates/06_02_type_parameter.cpp
index a4dd3b8..6edc767 100644
--- a/06_advanced_templates/06_02_type_parameter.cpp
+++ b/06_advanced_templates/06_02_type_parameter.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/rj8avoKoz
 #include <iostream>
 
 template<typename T>
diff --git a/06_advanced_templates/06_03_type_result.cpp b/06_advanced_templates/06_03_type_result.cpp
index c9a7d77..3246f38 100644
--- a/06_advanced_templates/06_03_type_result.cpp
+++ b/06_advanced_templates/06_03_type_result.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/K5Whq6Es4
 #include <type_traits>
 #include <iostream>
 
diff --git a/06_advanced_templates/06_04_refactoring_conventions.cpp b/06_advanced_templates/06_04_refactoring_conventions.cpp
index d740e43..6d198b1 100644
--- a/06_advanced_templates/06_04_refactoring_conventions.cpp
+++ b/06_advanced_templates/06_04_refactoring_conventions.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/85b9Esxvn
 #include <type_traits>
 #include <iostream>
 
diff --git a/06_advanced_templates/06_05_tuple_includes.cpp b/06_advanced_templates/06_05_tuple_includes.cpp
index 7a7089c..46826c2 100644
--- a/06_advanced_templates/06_05_tuple_includes.cpp
+++ b/06_advanced_templates/06_05_tuple_includes.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/nhao6438h
 #include <iostream>
 #include <tuple>
 
diff --git a/06_advanced_templates/06_06_tuple_includes_prime.cpp b/06_advanced_templates/06_06_tuple_includes_prime.cpp
index c8cc306..1423565 100644
--- a/06_advanced_templates/06_06_tuple_includes_prime.cpp
+++ b/06_advanced_templates/06_06_tuple_includes_prime.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/fnEPqs6jq
 #include <iostream>
 #include <tuple>
 
diff --git a/06_advanced_templates/06_07_dispatch.cpp b/06_advanced_templates/06_07_dispatch.cpp
index 5bfbf1b..57f3b8e 100644
--- a/06_advanced_templates/06_07_dispatch.cpp
+++ b/06_advanced_templates/06_07_dispatch.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/Yx5G1zsME
 #include <iostream>
 
 /// Scenario: /////////////////////////////////////////////////////////////////
diff --git a/06_advanced_templates/06_08_decltype_declval.cpp b/06_advanced_templates/06_08_decltype_declval.cpp
index 8e959cb..3b27fb2 100644
--- a/06_advanced_templates/06_08_decltype_declval.cpp
+++ b/06_advanced_templates/06_08_decltype_declval.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/5cY9v39Y9
 #include <iostream>
 #include <string>
 
diff --git a/06_advanced_templates/06_09_sfinae.cpp b/06_advanced_templates/06_09_sfinae.cpp
index 6e04e4b..9c1f15e 100644
--- a/06_advanced_templates/06_09_sfinae.cpp
+++ b/06_advanced_templates/06_09_sfinae.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/jr9cr9GPP
 #include <iostream>
 #include <string>
 
diff --git a/06_advanced_templates/06_10_crtp.cpp b/06_advanced_templates/06_10_crtp.cpp
index 62f00d0..369ab40 100644
--- a/06_advanced_templates/06_10_crtp.cpp
+++ b/06_advanced_templates/06_10_crtp.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/qEsshf7Yn
 #include <iostream>
 
 template <class T>

From 7a621e62d3f816f69a568fa1377aae75ade629ee Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Thu, 13 Mar 2025 16:58:09 +0100
Subject: [PATCH 7/9] added godbolt links to chapter 07

---
 07_concepts/07_01_basic_sample.cpp        | 1 +
 07_concepts/07_02_syntax_options.cpp      | 1 +
 07_concepts/07_03_constrained_auto.cpp    | 2 +-
 07_concepts/07_04_requires_expression.cpp | 2 +-
 07_concepts/07_05_requirements.cpp        | 1 +
 07_concepts/07_06_dispatch.cpp            | 1 +
 07_concepts/07_07_partial_order.cpp       | 3 ++-
 7 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/07_concepts/07_01_basic_sample.cpp b/07_concepts/07_01_basic_sample.cpp
index 2b15551..8c6f43b 100644
--- a/07_concepts/07_01_basic_sample.cpp
+++ b/07_concepts/07_01_basic_sample.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/o44je9ohx
 #include <concepts>
 #include <cstddef>
 #include <functional>
diff --git a/07_concepts/07_02_syntax_options.cpp b/07_concepts/07_02_syntax_options.cpp
index 0829a58..6d56925 100644
--- a/07_concepts/07_02_syntax_options.cpp
+++ b/07_concepts/07_02_syntax_options.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/dvfxY6szs
 #include <concepts>
 #include <cstddef>
 #include <functional>
diff --git a/07_concepts/07_03_constrained_auto.cpp b/07_concepts/07_03_constrained_auto.cpp
index 6958f64..64c076e 100644
--- a/07_concepts/07_03_constrained_auto.cpp
+++ b/07_concepts/07_03_constrained_auto.cpp
@@ -1,4 +1,4 @@
-// note: this is currently not supported in MSVC 16.8
+// https://godbolt.org/z/Wjzo9rxjv
 
 #include <concepts>
 #include <cstddef>
diff --git a/07_concepts/07_04_requires_expression.cpp b/07_concepts/07_04_requires_expression.cpp
index ffbfa98..91bdbe7 100644
--- a/07_concepts/07_04_requires_expression.cpp
+++ b/07_concepts/07_04_requires_expression.cpp
@@ -1,4 +1,4 @@
-
+// https://godbolt.org/z/PErGq4E8o
 // basic requires expression in a concept definition
 template <typename T>
 concept Addable = requires(T x) {
diff --git a/07_concepts/07_05_requirements.cpp b/07_concepts/07_05_requirements.cpp
index 3ec046e..9d10b9e 100644
--- a/07_concepts/07_05_requirements.cpp
+++ b/07_concepts/07_05_requirements.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/WWo5z3ToE
 #include <utility>
 #include <concepts>
 
diff --git a/07_concepts/07_06_dispatch.cpp b/07_concepts/07_06_dispatch.cpp
index aa16eba..0a82f61 100644
--- a/07_concepts/07_06_dispatch.cpp
+++ b/07_concepts/07_06_dispatch.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/Ph4M7ezaz
 #include <iostream>
 
 /// Scenario: /////////////////////////////////////////////////////////////////
diff --git a/07_concepts/07_07_partial_order.cpp b/07_concepts/07_07_partial_order.cpp
index 3b2b2db..6b11caa 100644
--- a/07_concepts/07_07_partial_order.cpp
+++ b/07_concepts/07_07_partial_order.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/fGa1GWf3j
 #include <iostream>
 
 template<typename T>
@@ -52,4 +53,4 @@ void test3() {
 int main() {
 	test1();
 	test2();
-}
\ No newline at end of file
+}

From f2c3bc41c3bde438b75f801f3829ab293d02667a Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Thu, 13 Mar 2025 16:59:29 +0100
Subject: [PATCH 8/9] added godbolt links to chapter 08

I couldn't get examples 08 and 09 (program options and log) to compile on godbolt, so they didn't get links
---
 08_libraries/08_01_regex.cpp           | 1 +
 08_libraries/08_02_threads.cpp         | 1 +
 08_libraries/08_03_future_fs.cpp       | 1 +
 08_libraries/08_04_boost_format.cpp    | 2 +-
 08_libraries/08_05_boost_bimap.cpp     | 2 +-
 08_libraries/08_06_boost_operators.cpp | 1 +
 08_libraries/08_07_boost_hana.cpp      | 1 +
 08_libraries/08_10_eigen.cpp           | 1 +
 8 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/08_libraries/08_01_regex.cpp b/08_libraries/08_01_regex.cpp
index e9b899f..99f8db5 100644
--- a/08_libraries/08_01_regex.cpp
+++ b/08_libraries/08_01_regex.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/5TGhEzhn8
 #include <iostream>
 #include <string>
 #include <regex>
diff --git a/08_libraries/08_02_threads.cpp b/08_libraries/08_02_threads.cpp
index 9d8c651..29b7080 100644
--- a/08_libraries/08_02_threads.cpp
+++ b/08_libraries/08_02_threads.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/j4EnEaeGG
 #include <iostream>
 #include <string>
 #include <thread>
diff --git a/08_libraries/08_03_future_fs.cpp b/08_libraries/08_03_future_fs.cpp
index 9026c65..416450e 100644
--- a/08_libraries/08_03_future_fs.cpp
+++ b/08_libraries/08_03_future_fs.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/5T7E4W45r
 #include <iostream>
 #include <string>
 #include <future>
diff --git a/08_libraries/08_04_boost_format.cpp b/08_libraries/08_04_boost_format.cpp
index b6a5099..77b9819 100644
--- a/08_libraries/08_04_boost_format.cpp
+++ b/08_libraries/08_04_boost_format.cpp
@@ -1,5 +1,5 @@
 // adapted from boost::format example
-
+// https://godbolt.org/z/YzPdWz779
 #include <iostream>
 #include <iomanip>
 #include <cassert>
diff --git a/08_libraries/08_05_boost_bimap.cpp b/08_libraries/08_05_boost_bimap.cpp
index 2bc5c7e..54b3f16 100644
--- a/08_libraries/08_05_boost_bimap.cpp
+++ b/08_libraries/08_05_boost_bimap.cpp
@@ -1,5 +1,5 @@
 // adapted from boost::bimap example
-
+// https://godbolt.org/z/zvzWTnvEP
 #include <string>
 #include <iostream>
 
diff --git a/08_libraries/08_06_boost_operators.cpp b/08_libraries/08_06_boost_operators.cpp
index caf1c43..feb5b9b 100644
--- a/08_libraries/08_06_boost_operators.cpp
+++ b/08_libraries/08_06_boost_operators.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/aWMo3rfK7
 #include <string>
 #include <iostream>
 #include <cmath>
diff --git a/08_libraries/08_07_boost_hana.cpp b/08_libraries/08_07_boost_hana.cpp
index 4b62d7e..0c4c59b 100644
--- a/08_libraries/08_07_boost_hana.cpp
+++ b/08_libraries/08_07_boost_hana.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/T6jcb81ja
 #include <iostream>
 
 /// Scenario: /////////////////////////////////////////////////////////////////
diff --git a/08_libraries/08_10_eigen.cpp b/08_libraries/08_10_eigen.cpp
index f0ffe8c..5e26a4a 100644
--- a/08_libraries/08_10_eigen.cpp
+++ b/08_libraries/08_10_eigen.cpp
@@ -1,3 +1,4 @@
+// https://godbolt.org/z/4Kr1991fh
 #include <iostream>
 
 #include <Eigen/Dense>

From b44c6463ef7ab32cb45489053c617ab144b5b532 Mon Sep 17 00:00:00 2001
From: Moritz Perschke <moritz.perschke@student.uibk.ac.at>
Date: Wed, 2 Apr 2025 15:54:48 +0200
Subject: [PATCH 9/9] compiler explorer links updated

- previously forgot to change flags on some non-executor compilers, which left squigglies in the editor part
- library examples now show clang + gcc output
---
 03_lambdas_and_algorithms/03_07_lambda_implementation.cpp | 2 +-
 03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp     | 2 +-
 04_templates/04_07_class_template_arg_deduction.cpp       | 2 +-
 05_keyword_safari/05_04_static_members.cpp                | 2 +-
 05_keyword_safari/05_07_mutable_data_members.cpp          | 2 +-
 05_keyword_safari/05_09_constevalinit.cpp                 | 2 +-
 06_advanced_templates/06_03_type_result.cpp               | 2 +-
 06_advanced_templates/06_07_dispatch.cpp                  | 2 +-
 07_concepts/07_01_basic_sample.cpp                        | 2 +-
 07_concepts/07_02_syntax_options.cpp                      | 2 +-
 07_concepts/07_03_constrained_auto.cpp                    | 2 +-
 07_concepts/07_04_requires_expression.cpp                 | 2 +-
 07_concepts/07_05_requirements.cpp                        | 2 +-
 07_concepts/07_06_dispatch.cpp                            | 2 +-
 07_concepts/07_07_partial_order.cpp                       | 2 +-
 08_libraries/08_02_threads.cpp                            | 2 +-
 08_libraries/08_04_boost_format.cpp                       | 2 +-
 08_libraries/08_05_boost_bimap.cpp                        | 2 +-
 08_libraries/08_06_boost_operators.cpp                    | 2 +-
 08_libraries/08_07_boost_hana.cpp                         | 2 +-
 08_libraries/08_10_eigen.cpp                              | 2 +-
 21 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp b/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp
index 90da76e..83ba427 100644
--- a/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp
+++ b/03_lambdas_and_algorithms/03_07_lambda_implementation.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/W3T5oG5sc
+// https://godbolt.org/z/eWhKPhPPG
 #include <iostream>
 
 void test1() {
diff --git a/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp b/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp
index 6e28732..82d532b 100644
--- a/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp
+++ b/03_lambdas_and_algorithms/03_09_exec_policy_bench.cpp
@@ -1,5 +1,5 @@
 // g++ main.cpp -O3 -std=c++20 -ltbb -Wall -Wextra -o main
-// https://godbolt.org/z/jso53sM1o
+// https://godbolt.org/z/xfPWd8orh
 #include <algorithm>
 #include <iomanip>
 #include <numeric>
diff --git a/04_templates/04_07_class_template_arg_deduction.cpp b/04_templates/04_07_class_template_arg_deduction.cpp
index 00b5b89..4dd5d18 100644
--- a/04_templates/04_07_class_template_arg_deduction.cpp
+++ b/04_templates/04_07_class_template_arg_deduction.cpp
@@ -1,5 +1,5 @@
 // you can see this example working with recent GCC and Clang versions here:
-// https://godbolt.org/z/r6Ysq4dPe
+// https://godbolt.org/z/xvnxjcnK9
 
 #include <algorithm>
 #include <type_traits>
diff --git a/05_keyword_safari/05_04_static_members.cpp b/05_keyword_safari/05_04_static_members.cpp
index b0702ff..f1f4008 100644
--- a/05_keyword_safari/05_04_static_members.cpp
+++ b/05_keyword_safari/05_04_static_members.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/GvqvYEW1o
+// https://godbolt.org/z/bsTfzEzan
 #include <iostream>
 
 struct Foo {
diff --git a/05_keyword_safari/05_07_mutable_data_members.cpp b/05_keyword_safari/05_07_mutable_data_members.cpp
index 793e0ad..eb9f36e 100644
--- a/05_keyword_safari/05_07_mutable_data_members.cpp
+++ b/05_keyword_safari/05_07_mutable_data_members.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/43GhsYxnc
+
 class ComplexShape {
 	mutable bool volumeCalculated = false;
 	mutable double volume;
diff --git a/05_keyword_safari/05_09_constevalinit.cpp b/05_keyword_safari/05_09_constevalinit.cpp
index 4876ec2..a2f5dea 100644
--- a/05_keyword_safari/05_09_constevalinit.cpp
+++ b/05_keyword_safari/05_09_constevalinit.cpp
@@ -1,5 +1,5 @@
 // Sample adapted from cppreference
-// Available in compiler explorer: https://godbolt.org/z/oKf63hzaE
+// https://godbolt.org/z/zKhYaf33q
 
 #include <iostream>
 
diff --git a/06_advanced_templates/06_03_type_result.cpp b/06_advanced_templates/06_03_type_result.cpp
index 3246f38..e08ac97 100644
--- a/06_advanced_templates/06_03_type_result.cpp
+++ b/06_advanced_templates/06_03_type_result.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/K5Whq6Es4
+// https://godbolt.org/z/PdP48h9ET
 #include <type_traits>
 #include <iostream>
 
diff --git a/06_advanced_templates/06_07_dispatch.cpp b/06_advanced_templates/06_07_dispatch.cpp
index 57f3b8e..161bbf8 100644
--- a/06_advanced_templates/06_07_dispatch.cpp
+++ b/06_advanced_templates/06_07_dispatch.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/Yx5G1zsME
+// https://godbolt.org/z/sdW5894xe
 #include <iostream>
 
 /// Scenario: /////////////////////////////////////////////////////////////////
diff --git a/07_concepts/07_01_basic_sample.cpp b/07_concepts/07_01_basic_sample.cpp
index 8c6f43b..4bb6ce2 100644
--- a/07_concepts/07_01_basic_sample.cpp
+++ b/07_concepts/07_01_basic_sample.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/o44je9ohx
+// https://godbolt.org/z/To89f71M4
 #include <concepts>
 #include <cstddef>
 #include <functional>
diff --git a/07_concepts/07_02_syntax_options.cpp b/07_concepts/07_02_syntax_options.cpp
index 6d56925..6c2ce5e 100644
--- a/07_concepts/07_02_syntax_options.cpp
+++ b/07_concepts/07_02_syntax_options.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/dvfxY6szs
+// https://godbolt.org/z/GsE1rvqnT
 #include <concepts>
 #include <cstddef>
 #include <functional>
diff --git a/07_concepts/07_03_constrained_auto.cpp b/07_concepts/07_03_constrained_auto.cpp
index 64c076e..1a67150 100644
--- a/07_concepts/07_03_constrained_auto.cpp
+++ b/07_concepts/07_03_constrained_auto.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/Wjzo9rxjv
+// https://godbolt.org/z/WPGscxPdo
 
 #include <concepts>
 #include <cstddef>
diff --git a/07_concepts/07_04_requires_expression.cpp b/07_concepts/07_04_requires_expression.cpp
index 91bdbe7..3638d06 100644
--- a/07_concepts/07_04_requires_expression.cpp
+++ b/07_concepts/07_04_requires_expression.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/PErGq4E8o
+// https://godbolt.org/z/WYEoW5bzz
 // basic requires expression in a concept definition
 template <typename T>
 concept Addable = requires(T x) {
diff --git a/07_concepts/07_05_requirements.cpp b/07_concepts/07_05_requirements.cpp
index 9d10b9e..9f590aa 100644
--- a/07_concepts/07_05_requirements.cpp
+++ b/07_concepts/07_05_requirements.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/WWo5z3ToE
+// https://godbolt.org/z/75q59E7cv
 #include <utility>
 #include <concepts>
 
diff --git a/07_concepts/07_06_dispatch.cpp b/07_concepts/07_06_dispatch.cpp
index 0a82f61..7bf2615 100644
--- a/07_concepts/07_06_dispatch.cpp
+++ b/07_concepts/07_06_dispatch.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/Ph4M7ezaz
+// https://godbolt.org/z/xdEssa3bP
 #include <iostream>
 
 /// Scenario: /////////////////////////////////////////////////////////////////
diff --git a/07_concepts/07_07_partial_order.cpp b/07_concepts/07_07_partial_order.cpp
index 6b11caa..5d393a2 100644
--- a/07_concepts/07_07_partial_order.cpp
+++ b/07_concepts/07_07_partial_order.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/fGa1GWf3j
+// https://godbolt.org/z/6c5r537e5
 #include <iostream>
 
 template<typename T>
diff --git a/08_libraries/08_02_threads.cpp b/08_libraries/08_02_threads.cpp
index 29b7080..7d28c93 100644
--- a/08_libraries/08_02_threads.cpp
+++ b/08_libraries/08_02_threads.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/j4EnEaeGG
+// https://godbolt.org/z/81cd58Wxr
 #include <iostream>
 #include <string>
 #include <thread>
diff --git a/08_libraries/08_04_boost_format.cpp b/08_libraries/08_04_boost_format.cpp
index 77b9819..9ee6c8c 100644
--- a/08_libraries/08_04_boost_format.cpp
+++ b/08_libraries/08_04_boost_format.cpp
@@ -1,5 +1,5 @@
 // adapted from boost::format example
-// https://godbolt.org/z/YzPdWz779
+// https://godbolt.org/z/3q169Eoa7
 #include <iostream>
 #include <iomanip>
 #include <cassert>
diff --git a/08_libraries/08_05_boost_bimap.cpp b/08_libraries/08_05_boost_bimap.cpp
index 54b3f16..f7e70ab 100644
--- a/08_libraries/08_05_boost_bimap.cpp
+++ b/08_libraries/08_05_boost_bimap.cpp
@@ -1,5 +1,5 @@
 // adapted from boost::bimap example
-// https://godbolt.org/z/zvzWTnvEP
+// https://godbolt.org/z/7Mor8P46z
 #include <string>
 #include <iostream>
 
diff --git a/08_libraries/08_06_boost_operators.cpp b/08_libraries/08_06_boost_operators.cpp
index feb5b9b..4f93fd9 100644
--- a/08_libraries/08_06_boost_operators.cpp
+++ b/08_libraries/08_06_boost_operators.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/aWMo3rfK7
+// https://godbolt.org/z/WGqhjGWd4
 #include <string>
 #include <iostream>
 #include <cmath>
diff --git a/08_libraries/08_07_boost_hana.cpp b/08_libraries/08_07_boost_hana.cpp
index 0c4c59b..7005c6f 100644
--- a/08_libraries/08_07_boost_hana.cpp
+++ b/08_libraries/08_07_boost_hana.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/T6jcb81ja
+// https://godbolt.org/z/erGf1bbx9
 #include <iostream>
 
 /// Scenario: /////////////////////////////////////////////////////////////////
diff --git a/08_libraries/08_10_eigen.cpp b/08_libraries/08_10_eigen.cpp
index 5e26a4a..31d5bb1 100644
--- a/08_libraries/08_10_eigen.cpp
+++ b/08_libraries/08_10_eigen.cpp
@@ -1,4 +1,4 @@
-// https://godbolt.org/z/4Kr1991fh
+// https://godbolt.org/z/erGf1bbx9
 #include <iostream>
 
 #include <Eigen/Dense>