chore(capi): Migrate examples to C++20

.github/workflows/CI.yaml

@@ -304,7 +304,7 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install libcli11-dev libfmt-dev meson
+          sudo apt-get install libcli11-dev meson
           meson -v
       - name: Setup just
         uses: extractions/setup-just@v2

crates/capi/examples/.clang-tidy

@@ -6,7 +6,6 @@
 Checks: "clang-diagnostic-*,clang-analyzer-*"
 WarningsAsErrors: ""
 HeaderFilterRegex: ""
-AnalyzeTemporaryDtors: false
 FormatStyle: none
 User: user
 CheckOptions:

crates/capi/examples/decrypt.cpp

@@ -4,7 +4,6 @@
 
 // An example of decrypting a file from the abcrypt encrypted data format.
 
-#include <fmt/core.h>
 #include <termios.h>
 #include <unistd.h>
 
@@ -13,6 +12,7 @@
 #include <cstdint>
 #include <cstdlib>
 #include <cstring>
+#include <format>
 #include <fstream>
 #include <iostream>
 #include <iterator>
@@ -35,7 +35,7 @@ int main(int argc, char *argv[]) {
 
   std::ifstream input_file(input_filename);
   if (!input_file) {
-    std::clog << fmt::format("Error: could not open {}: {}", input_filename,
+    std::clog << std::format("Error: could not open {}: {}", input_filename,
                              std::strerror(errno))
               << std::endl;
     return EXIT_FAILURE;
@@ -68,18 +68,18 @@ int main(int argc, char *argv[]) {
     std::string error_message(buf.cbegin(), buf.cend());
     switch (error_code) {
       case ABCRYPT_ERROR_CODE_INVALID_HEADER_MAC:
-        std::clog << fmt::format("Error: passphrase is incorrect: {}",
+        std::clog << std::format("Error: passphrase is incorrect: {}",
                                  error_message)
                   << std::endl;
         break;
       case ABCRYPT_ERROR_CODE_INVALID_MAC:
-        std::clog << fmt::format("Error: the encrypted data is corrupted: {}",
+        std::clog << std::format("Error: the encrypted data is corrupted: {}",
                                  error_message)
                   << std::endl;
         break;
       default:
         std::clog
-            << fmt::format(
+            << std::format(
                    "Error: the header in the encrypted data is invalid: {}",
                    error_message)
             << std::endl;
@@ -92,7 +92,7 @@ int main(int argc, char *argv[]) {
     auto ofn = output_filename.value();
     std::ofstream output_file(ofn);
     if (!output_file) {
-      std::clog << fmt::format("Error: could not open {}: {}", ofn,
+      std::clog << std::format("Error: could not open {}: {}", ofn,
                                std::strerror(errno))
                 << std::endl;
       return EXIT_FAILURE;

crates/capi/examples/encrypt.cpp

@@ -4,7 +4,6 @@
 
 // An example of encrypting a file to the abcrypt encrypted data format.
 
-#include <fmt/core.h>
 #include <termios.h>
 #include <unistd.h>
 
@@ -13,6 +12,7 @@
 #include <cstdint>
 #include <cstdlib>
 #include <cstring>
+#include <format>
 #include <fstream>
 #include <iostream>
 #include <iterator>
@@ -43,7 +43,7 @@ int main(int argc, char *argv[]) {
 
   std::ifstream input_file(input_filename);
   if (!input_file) {
-    std::clog << fmt::format("Error: could not open {}: {}", input_filename,
+    std::clog << std::format("Error: could not open {}: {}", input_filename,
                              std::strerror(errno))
               << std::endl;
     return EXIT_FAILURE;
@@ -84,13 +84,13 @@ int main(int argc, char *argv[]) {
     std::vector<std::uint8_t> buf(abcrypt_error_message_out_len(error_code));
     abcrypt_error_message(error_code, buf.data(), buf.size());
     std::string error_message(buf.cbegin(), buf.cend());
-    std::clog << fmt::format("Error: {}", error_message) << std::endl;
+    std::clog << std::format("Error: {}", error_message) << std::endl;
     return EXIT_FAILURE;
   }
 
   std::ofstream output_file(output_filename);
   if (!output_file) {
-    std::clog << fmt::format("Error: could not open {}: {}", output_filename,
+    std::clog << std::format("Error: could not open {}: {}", output_filename,
                              std::strerror(errno))
               << std::endl;
     return EXIT_FAILURE;

crates/capi/examples/info.cpp

@@ -4,13 +4,12 @@
 
 // An example of reading the Argon2 parameters from a file.
 
-#include <fmt/core.h>
-
 #include <CLI/CLI.hpp>
 #include <cerrno>
 #include <cstdint>
 #include <cstdlib>
 #include <cstring>
+#include <format>
 #include <fstream>
 #include <iostream>
 #include <iterator>
@@ -33,7 +32,7 @@ int main(int argc, char *argv[]) {
     auto ifn = input_filename.value();
     std::ifstream input_file(ifn);
     if (!input_file) {
-      std::clog << fmt::format("Error: could not open {}: {}", ifn,
+      std::clog << std::format("Error: could not open {}: {}", ifn,
                                std::strerror(errno))
                 << std::endl;
       return EXIT_FAILURE;
@@ -52,7 +51,7 @@ int main(int argc, char *argv[]) {
     std::vector<std::uint8_t> buf(abcrypt_error_message_out_len(error_code));
     abcrypt_error_message(error_code, buf.data(), buf.size());
     std::string error_message(buf.cbegin(), buf.cend());
-    std::clog << fmt::format(
+    std::clog << std::format(
                      "Error: data is not a valid abcrypt encrypted file: {}",
                      error_message)
               << std::endl;
@@ -64,7 +63,7 @@ int main(int argc, char *argv[]) {
   auto parallelism = abcrypt_params_parallelism(params);
   abcrypt_params_free(params);
 
-  std::cout << fmt::format(
+  std::cout << std::format(
                    "Parameters used: memoryCost = {}; timeCost = {}; "
                    "parallelism = {};",
                    memory_cost, time_cost, parallelism)

crates/capi/examples/meson.build

@@ -4,7 +4,7 @@
 
 project('abcrypt_capi_examples',
   'cpp',
-  default_options: ['warning_level=3', 'cpp_std=c++17'],
+  default_options: ['warning_level=3', 'cpp_std=c++20'],
   license: 'Apache-2.0 OR MIT',
   meson_version: '>=0.53.0',
   version: '0.3.2',
@@ -16,7 +16,7 @@ cpp = meson.get_compiler('cpp')
 cpp.check_header('termios.h', required: true)
 cpp.check_header('unistd.h', required: true)
 
-deps = [dependency('CLI11'), dependency('fmt')]
+deps = dependency('CLI11')
 
 libdir = meson.current_source_dir() / '../../../target'
 if fs.exists(libdir / 'release')