Snippets c++

snippets/cpp/array-manipulation/filter-vector.md

@@ -15,4 +15,11 @@ auto filter(const std::vector<T>& vec, P&& predicate) {
         | std::views::filter(std::forward<P>(predicate))
         | std::ranges::to<std::vector<T>>();
 }
+
+
+
+// Usage:
+std::vector<int> vec = {1, 2, 3, 4, 5};
+std::vector<int> filtered = filter(vec, [](int i){ return i % 2 == 0; });
+// filtered contains 2 and 4
 ```

snippets/cpp/array-manipulation/transform-vector.md

@@ -16,4 +16,11 @@ auto transform(const std::vector<T>& vec, F&& transformer) {
         | std::views::transform(std::forward<F>(transformer))
         | std::ranges::to<std::vector<U>>();
 }
+
+
+
+// Usage:
+std::vector<int> vec = {1, 2, 3, 4, 5};
+std::vector<int> transformed = transform(vec, [](int i){ return i * 2; });
+// transformed containes 2, 4, 6, 8, 10
 ```

snippets/cpp/file-handling/find-files-recursive.md

@@ -32,7 +32,9 @@ std::vector<std::filesystem::path> find_files_recursive(const std::string& path,
 }
 
 
-// usage: 
+
+// Usage:
+
 // Find all files with size greater than 10MB
 auto files = find_files_recursive("Path", [](const auto& p) {
     return std::filesystem::file_size(p) > 10 * 1024 * 1024;

snippets/cpp/file-handling/find-files.md

@@ -32,7 +32,9 @@ std::vector<std::filesystem::path> find_files(const std::string& path, P&& predi
 }
 
 
-// usage: 
+
+// Usage:
+
 // Find all files with size greater than 10MB
 auto files = find_files("Path", [](const auto& p) {
     return std::filesystem::file_size(p) > 10 * 1024 * 1024;

snippets/cpp/file-handling/list-directories.md

@@ -29,4 +29,9 @@ std::vector<std::filesystem::path> list_directories(const std::string& path) {
 
     return files;
 }
+
+
+
+// Usage:
+auto directories = list_directories("Path");
 ```

snippets/cpp/string-manipulation/filter.md

@@ -15,4 +15,11 @@ std::string filter(const std::string& str, P&& predicate) {
         | std::ranges::views::filter(std::forward<P>(predicate))
         | std::ranges::to<std::string>();
 }
+
+
+
+// Usage:
+std::string str = "Hello, World!";
+std::string filtered = filter(str, [](char c){ return std::isalpha(c); });
+std::cout << filtered << std::endl; // HelloWorld
 ```

snippets/cpp/string-manipulation/palindrome.md

@@ -18,4 +18,9 @@ bool is_palindrome(const std::string& str) {
 
     return std::ranges::equal(sanitized_string, sanitized_string | std::views::reverse);
 }
+
+
+
+// Usage:
+bool pal = is_palindrome("A man, a plan, a canal, Panama"); // true
 ```

snippets/cpp/string-manipulation/transform.md

@@ -15,4 +15,11 @@ std::string transform(const std::string& str, F&& transformer) {
         | std::ranges::views::transform(std::forward<F>(transformer))
         | std::ranges::to<std::string>();
 }
+
+
+
+// Usage:
+std::string str = "Hello, World!";
+std::string transformed = transform(str, [](char c){ return std::toupper(c); });
+std::cout << transformed << std::endl; // HELLO, WORLD!
 ```