init

bin/main.cpp

@@ -0,0 +1,6 @@
+#include "src/string/string.hpp"
+
+int main(int argc, char *argv[])
+{
+  return 0;
+}

bin/meson.build

@@ -0,0 +1,7 @@
+deps += string_dep
+
+executable(
+  'hack', 'main.cpp', 
+  dependencies : deps,
+  cpp_args: args
+)

meson.build

@@ -0,0 +1,25 @@
+# https://pixorblog.wordpress.com/2019/07/27/a-meson-starter-script-for-c-projects
+project(
+  'hack', 
+  'cpp', 
+  version : '0.0.1', 
+  default_options : ['cpp_std=c++20']
+)
+
+add_project_arguments (
+  '-pedantic', 
+  '-Wno-comment',
+  '-Wno-gnu-zero-variadic-macro-arguments',
+  '-Wunused-but-set-variable',
+  language: 'cpp'
+)
+
+args = []
+deps = []
+
+inc = []
+inc += include_directories('.')
+
+subdir('src')
+subdir('bin')
+subdir('tests')

run

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+TEST="meson test -C build"
+RUN="./build/bin/hack"
+
+command meson compile -C build
+
+if [[ $1 == "test" ]]; then
+  command $TEST 
+else
+  command $RUN
+fi

src/meson.build

@@ -0,0 +1,3 @@
+inc += include_directories('.')
+
+subdir('string')

src/string/meson.build

@@ -0,0 +1,14 @@
+headers = ['string.hpp']
+sources = ['string.cpp']
+
+lib = library(
+  'string',
+  include_directories : inc,
+  install : true,
+  sources: [headers, sources]
+)
+
+string_dep = declare_dependency(
+  include_directories: inc,
+  link_with: lib
+)

src/string/string.cpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <string>
+
+#ifndef ERROR_EXCEPTION
+#define ERROR_EXCEPTION_1(in) { auto trace = std::string(LOGGER___TRACE_ON); \
+                                 throw tools::error::error_exception(in, in, "no internal system error", trace); }
+#define ERROR_EXCEPTION_2(in, out) { auto trace = std::string(LOGGER___TRACE_ON); \
+                                         throw tools::error::error_exception(in, out, "no internal system err", trace); }
+#define ERROR_EXCEPTION_3(in, out, err) { auto trace = std::string(LOGGER___TRACE_ON); \
+                                              throw tools::error::error_exception(in, out, err, trace); }
+#define GET_MACRO(_1,_2,_3,NAME, ...) NAME
+#define ERROR_EXCEPTION(...) GET_MACRO(__VA_ARGS__, ERROR_EXCEPTION_3, ERROR_EXCEPTION_2, ERROR_EXCEPTION_1)(__VA_ARGS__)
+#endif
+
+namespace tools::error
+{
+  // implementation error exception
+  // example: if (1 < 0) ERROR_EXCEPTION("it's very strange"); 
+  // try {} 
+  // catch(tools::error::error_exception& e) {}
+  struct error_exception : public std::exception
+  {
+    error_exception(std::string in, std::string out, std::string error, std::string trace) : in { in }, out { out }, error { error }, trace { trace } {};
+    std::string in;
+    std::string out;
+    std::string error;
+    std::string trace;
+    const char* what () const throw () { return in.c_str(); }
+  };
+}
+

src/string/string.hpp

@@ -0,0 +1,7 @@
+#pragma once
+
+#include <string>
+
+namespace hack
+{
+}

subprojects/gtest.wrap

@@ -0,0 +1,15 @@
+[wrap-file]
+directory = googletest-release-1.11.0
+source_url = https://github.com/google/googletest/archive/release-1.11.0.tar.gz
+source_filename = gtest-1.11.0.tar.gz
+source_hash = b4870bf121ff7795ba20d20bcdd8627b8e088f2d1dab299a031c1034eddc93d5
+patch_filename = gtest_1.11.0-2_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/gtest_1.11.0-2/get_patch
+patch_hash = 764530d812ac161c9eab02a8cfaec67c871fcfc5548e29fd3d488070913d4e94
+
+[provide]
+gtest = gtest_dep
+gtest_main = gtest_main_dep
+gmock = gmock_dep
+gmock_main = gmock_main_dep
+

tests/meson.build

@@ -0,0 +1,11 @@
+gtest_proj = subproject('gtest')
+gtest_dep = gtest_proj.get_variable('gtest_main_dep')
+
+test(
+  'split_str',
+  executable(
+    'split_str',
+    'split_str.cpp',
+    dependencies: [ string_dep, gtest_dep ]
+  )
+)

tests/split_str.cpp

@@ -0,0 +1,13 @@
+#include <gtest/gtest.h>
+#include <string>
+#include <vector>
+
+#include "string/string.hpp"
+
+using v_str = std::vector<std::string>;
+
+TEST(split_str, check__func)
+{
+  // v_str res {"asdf","qwer","zxcv"};
+  // ASSERT_EQ(tools::func::split_str("asdf,qwer,zxcv", ','), res);
+}