From 55a2bacc0e29d8ebf7a78aa1fec03d2a26b39829 Mon Sep 17 00:00:00 2001
From: chatlanin <zimin@chatlanin.com.ru>
Date: Wed, 2 Mar 2022 11:08:14 +0300
Subject: [PATCH] add within

---
 bin/main.cpp                        | 12 +++++++++---
 bin/meson.build                     |  1 +
 src/meson.build                     |  1 +
 src/range/meson.build               | 14 ++++++++++++++
 src/range/range.cpp                 |  5 +++++
 src/range/range.hpp                 | 15 +++++++++++++++
 tests/meson.build                   | 11 ++++++++++-
 tests/range.cpp                     |  9 +++++++++
 tests/{split_str.cpp => string.cpp} |  0
 9 files changed, 64 insertions(+), 4 deletions(-)
 create mode 100644 src/range/meson.build
 create mode 100644 src/range/range.cpp
 create mode 100644 src/range/range.hpp
 create mode 100644 tests/range.cpp
 rename tests/{split_str.cpp => string.cpp} (100%)

diff --git a/bin/main.cpp b/bin/main.cpp
index c4ac633..3d9fc4e 100644
--- a/bin/main.cpp
+++ b/bin/main.cpp
@@ -1,11 +1,17 @@
 #include <iostream>
 
 #include "string/string.hpp"
+#include "range/range.hpp"
 
 int main(int argc, char *argv[])
 {
-  std::string str { "asdf,qwer,zxcv" };
-  hack::v_str v = hack::split_str(str, ',');
+  {// ex: split_str
+    std::string str { "asdf,qwer,zxcv" };
+    hack::v_str v = hack::split_str(str, ',');
+    for (const auto& c : v) std::cout << c << std::endl;
+  }
 
-  for (const auto& c : v) std::cout << c << std::endl;
+  {// ex: within
+    std::cout << hack::within(12, 34, 12, 23, 31) << std::endl;
+  }
 }
diff --git a/bin/meson.build b/bin/meson.build
index ddaf903..6baa655 100644
--- a/bin/meson.build
+++ b/bin/meson.build
@@ -1,4 +1,5 @@
 deps += string_dep
+deps += range_dep
 
 executable(
   'hack', 'main.cpp', 
diff --git a/src/meson.build b/src/meson.build
index 0cb5b45..325ba16 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -1,3 +1,4 @@
 inc += include_directories('.')
 
 subdir('string')
+subdir('range')
diff --git a/src/range/meson.build b/src/range/meson.build
new file mode 100644
index 0000000..94717ab
--- /dev/null
+++ b/src/range/meson.build
@@ -0,0 +1,14 @@
+headers = ['range.hpp']
+sources = ['range.cpp']
+
+lib = library(
+  'range',
+  include_directories : inc,
+  install : true,
+  sources: [headers, sources]
+)
+
+range_dep = declare_dependency(
+  include_directories: inc,
+  link_with: lib
+)
diff --git a/src/range/range.cpp b/src/range/range.cpp
new file mode 100644
index 0000000..614e456
--- /dev/null
+++ b/src/range/range.cpp
@@ -0,0 +1,5 @@
+#include "range.hpp"
+
+namespace hack
+{
+}
diff --git a/src/range/range.hpp b/src/range/range.hpp
new file mode 100644
index 0000000..7c2cd6e
--- /dev/null
+++ b/src/range/range.hpp
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace hack
+{
+  template<typename T, typename... Args>
+  bool within(T min, T max, Args... args)
+  {
+    return ((min <= args && max >= args) && ...);
+    // 1, 5, 2, 3, 4
+    // ( (1 <= 2 && 5 >= 2) && (1 <= 3 && 5 >= 3) && (1 <= 4 && 5 >= 4) )
+  }
+}
diff --git a/tests/meson.build b/tests/meson.build
index fb6c145..9773ccb 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -5,7 +5,16 @@ test(
   'split_str',
   executable(
     'split_str',
-    'split_str.cpp',
+    'string.cpp',
     dependencies: [ string_dep, gtest_dep ]
   )
 )
+
+test(
+  'within',
+  executable(
+    'within',
+    'range.cpp',
+    dependencies: [ range_dep, gtest_dep ]
+  )
+)
diff --git a/tests/range.cpp b/tests/range.cpp
new file mode 100644
index 0000000..10edac8
--- /dev/null
+++ b/tests/range.cpp
@@ -0,0 +1,9 @@
+#include <gtest/gtest.h>
+
+#include "range/range.hpp"
+
+TEST(within, check)
+{
+  ASSERT_EQ(hack::within(23, 123, 34, 44, 55, 66), true);
+  ASSERT_EQ(hack::within(23, 123, 134, 44, 55, 66), false);
+}
diff --git a/tests/split_str.cpp b/tests/string.cpp
similarity index 100%
rename from tests/split_str.cpp
rename to tests/string.cpp