chore! new project filesystem structure.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

13 files changed, 469 insertions, 0 deletions

diff --git a/include/LibC++/.gitignore b/include/LibC++/.gitignore
new file mode 100644
index 0000000..e3f10ea
--- /dev/null
+++ b/include/LibC++/.gitignore
@@ -0,0 +1 @@
+libc++/
diff --git a/include/LibC++/__abi+unreachable.inl b/include/LibC++/__abi+unreachable.inl
new file mode 100644
index 0000000..5628e7d
--- /dev/null
+++ b/include/LibC++/__abi+unreachable.inl
@@ -0,0 +1,16 @@
+/* ========================================
+
+ Copyright (C) 2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#include <LibC++/__abi.h>
+#include <LibC++/base_process.h>
+
+static const int32_t __unreachable_code = 34;
+
+extern "C" void __compilerkit_unreachable(void) {
+  std::base_process::signal(__unreachable_code);
+
+  while (1);
+}
\ No newline at end of file
diff --git a/include/LibC++/__abi.h b/include/LibC++/__abi.h
new file mode 100644
index 0000000..206b5ef
--- /dev/null
+++ b/include/LibC++/__abi.h
@@ -0,0 +1,15 @@
+/* ========================================
+
+ Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <LibC++/defines.h>
+
+__init_decl()
+
+    extern void __compilerkit_unreachable(void);
+
+__fini_decl()
\ No newline at end of file
diff --git a/include/LibC++/__power64.inc b/include/LibC++/__power64.inc
new file mode 100644
index 0000000..c06863a
--- /dev/null
+++ b/include/LibC++/__power64.inc
@@ -0,0 +1,39 @@
+# Path: LibC++/__power64.inc
+# Language: CompilerKit POWER Assembly support for GNU.
+# Build Date: 2024-6-4
+
+#ifdef __NECTI__
+
+#ifdef __ASSEMBLER__
+
+#define lda li
+#define sta stw
+#define ldw li
+
+#define r0 0
+#define r1 1
+#define r2 2
+#define r3 3
+#define r4 4
+#define r5 5
+#define r6 6
+#define r7 7
+#define r8 8
+#define r9 9
+#define r10 10
+#define r11 11
+#define r12 12
+#define r13 13
+#define r14 14
+#define r15 15
+#define r16 16
+#define r17 17
+#define r18 18
+#define r19 19
+#define r20 20
+
+#define nop mr 0, 0
+
+#endif
+
+#endif
diff --git a/include/LibC++/base_alloc.h b/include/LibC++/base_alloc.h
new file mode 100644
index 0000000..ea5b5b2
--- /dev/null
+++ b/include/LibC++/base_alloc.h
@@ -0,0 +1,43 @@
+/* ========================================
+
+  Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <LibC++/defines.h>
+
+namespace std::base_alloc {
+/// @brief allocate a new class.
+/// @tparam KindClass the class type to allocate.
+template <typename KindClass, typename... Args>
+inline KindClass* allocate(Args&&... args) {
+  return new KindClass(forward(args)...);
+}
+
+/// @brief allocate a new class.
+/// @note aborts on error.
+/// @tparam KindClass the class type to allocate.
+template <typename KindClass, typename... Args>
+inline KindClass* allocate_nothrow(Args&&... args) noexcept {
+  return allocate(forward(args)...);
+}
+
+/// @brief free a class.
+/// @tparam KindClass the class type to allocate.
+template <typename KindClass>
+inline void release(KindClass ptr) {
+  if (!ptr) return;
+
+  delete ptr;
+}
+
+/// @brief destroy and free a class.
+/// @note aborts on error.
+/// @tparam KindClass the class type to allocate.
+template <typename KindClass>
+inline void release_nothrow(KindClass ptr) noexcept {
+  release(ptr);
+}
+}  // namespace std::base_alloc
diff --git a/include/LibC++/base_exception.h b/include/LibC++/base_exception.h
new file mode 100644
index 0000000..8747688
--- /dev/null
+++ b/include/LibC++/base_exception.h
@@ -0,0 +1,37 @@
+/* ========================================
+
+  Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <LibC++/__abi.h>
+#include <LibC++/base_process.h>
+#include <LibC++/defines.h>
+#include <iostream>
+
+/// @author Amlal El Mahrouss (amlal@nekernel.org)
+
+namespace std::base_exception::abi {
+inline constexpr int __terminate_id = 33;
+
+/// @note This function is internal, don't call it.
+extern void __unwind_object_list();
+
+inline void __throw_general(const char* what) {
+  std::cout << "LibC++: Unwinding exception of kind: " << what << ", aborting here..." << std::endl;
+  __unwind_object_list();
+  base_process::exit(__terminate_id);
+}
+
+inline void __throw_domain_error(const char* what) {
+  __throw_general(what);
+  __builtin_unreachable();  // prevent from continuing.
+}
+
+inline void __throw_bad_array_new_length(const char* what) {
+  __throw_general(what);
+  __builtin_unreachable();  // prevent from continuing.
+}
+}  // namespace std::base_exception::abi
diff --git a/include/LibC++/base_math.h b/include/LibC++/base_math.h
new file mode 100644
index 0000000..60b260e
--- /dev/null
+++ b/include/LibC++/base_math.h
@@ -0,0 +1,88 @@
+/* ========================================
+
+  Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <LibC++/defines.h>
+
+#ifndef NAN
+#define NAN (__builtin_nanf(""))
+#endif  // !NAN
+
+/// @file Math.h
+/// @brief Math functions.
+
+#ifdef __LIBCXX_USE_DOUBLE__
+typedef double real_type;
+#else
+typedef float real_type;
+#endif
+
+namespace std::base_math {
+inline constexpr static auto not_a_number = NAN;
+
+/// =========================================================== ///
+/// @brief Power function, with Repeat argument.
+/// =========================================================== ///
+template <size_t Exponent>
+inline real_type pow(real_type in) {
+  if (Exponent == 0) return 1;  // Any number to the power of 0 is 1.
+
+  if (Exponent == 1) return in;  // Any number to the power of 1 is itself.
+
+  size_t cnt = Exponent;
+
+  real_type result = 1;
+
+  for (auto i = 0; i < cnt; ++i) result *= in;
+
+  return result;
+}
+
+/// =========================================================== ///
+/// @brief Square root function.
+/// =========================================================== ///
+inline real_type sqrt(real_type in) {
+  if (in == 0) return 0;
+  if (in == not_a_number) return not_a_number;
+
+  auto constexpr const static Base = 2;
+
+  auto x = in / Base;
+
+  for (int i = 0; i < 10; ++i) {
+    x = (x + in / x) / Base;
+  }
+
+  return x;
+}
+
+/// =========================================================== ///
+/// @brief Square of function, with Base template argument.
+/// @param of Base argument to find the square of.
+/// =========================================================== ///
+template <size_t Base>
+inline real_type surd(real_type in) {
+  if (in == 0) return 0;
+  if (in == 1) return 1;
+
+  if (Base == 1) return in;
+  if (Base == 2) return sqrt(in);
+
+  return not_a_number;
+}
+
+/// =========================================================== ///
+/// @brief Linear interpolation equation solver.
+/// @param from where?
+/// @param to to?
+/// @param Updated diff value according to difference.
+/// =========================================================== ///
+inline real_type lerp(real_type to, real_type from, real_type stat) {
+  real_type diff = (to - from);
+  return from + (diff * stat);
+}
+}  // namespace std::base_math
diff --git a/include/LibC++/base_process.h b/include/LibC++/base_process.h
new file mode 100644
index 0000000..cb25aa1
--- /dev/null
+++ b/include/LibC++/base_process.h
@@ -0,0 +1,45 @@
+/* ========================================
+
+  Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <LibC++/defines.h>
+
+__init_decl()
+
+    /// @brief CRT exit, with exit code (!!! exits all threads. !!!)
+    /// @param code the exit code.
+    /// @return the return > 0 for non successful.
+    extern int exit_(int code);
+
+/// @brief CRT signal handler.
+/// @param code the signal code.
+extern void signal_(int code);
+
+extern void (*__atexit_cdecl_ptr)(void);
+extern void (**__atexit_lst_ptr)(void);
+extern size_t __atexit_lst_cnt;
+
+__fini_decl()
+
+    /// @brief Standard C++ namespace
+    namespace std::base_process {
+  inline int signal(int code) {
+    signal_(code);
+    return -1;
+  }
+
+  inline int32_t exit(const int32_t& code) {
+    for (auto idx = 0UL; idx < __atexit_lst_cnt; ++idx) {
+      __atexit_lst_ptr[idx]();
+    }
+
+    if (__atexit_cdecl_ptr) __atexit_cdecl_ptr();
+
+    exit_(code);
+    return -1;
+  }
+}  // namespace std::base_process
diff --git a/include/LibC++/defines.h b/include/LibC++/defines.h
new file mode 100644
index 0000000..6aac009
--- /dev/null
+++ b/include/LibC++/defines.h
@@ -0,0 +1,81 @@
+/* ========================================
+
+  Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#ifndef __NECTI_DEFINES_H__
+#define __NECTI_DEFINES_H__
+
+#define __ATTRIBUTE(X) __attribute__((X))
+
+typedef __SIZE_TYPE__  size_t;
+typedef __INT64_TYPE__ ssize_t;
+typedef __INT32_TYPE__ int32_t;
+
+typedef void*         ptr_type;
+typedef __SIZE_TYPE__ size_type;
+
+typedef __INT64_TYPE__ ptrdiff_t;
+typedef size_t         uintptr_t;
+typedef void*          voidptr_t;
+typedef void*          any_t;
+typedef char*          caddr_t;
+
+#ifndef NULL
+#define NULL ((voidptr_t) 0)
+#endif  // !null
+
+#define __alloca(sz) __ck_alloca(sz)
+
+#define __deref(ptr) (*(ptr))
+
+#ifdef __cplusplus
+#define __init_decl() extern "C" {
+#define __fini_decl() \
+  }                   \
+  ;
+#else
+#define __init_decl()
+#define __fini_decl()
+#endif
+
+#if __has_builtin(__builtin_alloca)
+#define alloca(sz) __builtin_alloca(sz)
+#ifdef __alloca
+#undef __alloca
+#endif
+#define __alloca alloca
+#else
+#warning !! alloca not detected !!
+#endif
+
+typedef long long          off_t;
+typedef unsigned long long uoff_t;
+
+typedef union float_cast {
+  struct {
+    unsigned int mantissa : 23;
+    unsigned int exponent : 8;
+    unsigned int sign : 1;
+  };
+
+  float f;
+} __ATTRIBUTE(packed) float_cast_t;
+
+typedef union double_cast {
+  struct {
+    unsigned long long int mantissa : 52;
+    unsigned int           exponent : 11;
+    unsigned int           sign : 1;
+  };
+
+  double f;
+} __ATTRIBUTE(packed) double_cast_t;
+
+namespace std {
+struct placement_t;
+struct nothrow_t;
+}  // namespace std
+
+#endif /* __NECTI_DEFINES_H__ */
diff --git a/include/LibC++/filesystem.h b/include/LibC++/filesystem.h
new file mode 100644
index 0000000..4627c50
--- /dev/null
+++ b/include/LibC++/filesystem.h
@@ -0,0 +1,19 @@
+/* ========================================
+
+  Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#ifndef __NECTI_FS_H__
+#define __NECTI_FS_H__
+
+#include <LibC++/defines.h>
+
+namespace std {
+class path;
+class filesystem_error;
+class directory_entry;
+class directory_iterator;
+}  // namespace std
+
+#endif  // __NECTI_FS_H__
\ No newline at end of file
diff --git a/include/LibC++/make-stdcpp-hdrs.sh b/include/LibC++/make-stdcpp-hdrs.sh
new file mode 100755
index 0000000..a3730de
--- /dev/null
+++ b/include/LibC++/make-stdcpp-hdrs.sh
@@ -0,0 +1,13 @@
+#! /bin/sh
+
+outputDir=libc++/
+
+mkdir -p $outputDir
+
+for f in *.h; do
+
+#This line splits the file name on the delimiter "."
+baseName=`echo $f | cut -d "." -f 1`
+cp $f $outputDir$baseName
+
+done
diff --git a/include/LibC++/new.h b/include/LibC++/new.h
new file mode 100644
index 0000000..faa9da4
--- /dev/null
+++ b/include/LibC++/new.h
@@ -0,0 +1,42 @@
+/* ========================================
+
+  Copyright (C) 2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <LibC++/defines.h>
+
+namespace std {
+struct nothrow_t final {
+  explicit nothrow_t() = default;
+  ~nothrow_t()         = default;
+};
+
+struct placement_t final {
+  explicit placement_t() = default;
+  ~placement_t()         = default;
+
+  void*   __base{};
+  int32_t __align{};
+  size_t  __size{};
+};
+}  // namespace std
+
+#ifndef __has_placement
+#define placement
+#endif
+
+void* operator new(size_t);
+void* operator new[](size_t);
+
+void* operator new(size_t, const std::nothrow_t&) noexcept;
+void* operator new(size_t, void*) noexcept;
+void* operator new[](size_t, const std::nothrow_t&) noexcept;
+void* operator new[](size_t, void*) noexcept;
+
+void operator delete(void*) noexcept;
+void operator delete(void*, size_t) noexcept;
+
+void operator delete[](void*) noexcept;
diff --git a/include/LibC++/utility.h b/include/LibC++/utility.h
new file mode 100644
index 0000000..62096f5
--- /dev/null
+++ b/include/LibC++/utility.h
@@ -0,0 +1,30 @@
+/* ========================================
+
+ Copyright (C) 2024-2025 Amlal El Mahrouss, Licensed under the Apache 2.0 license.
+
+======================================== */
+
+#ifndef LIBCXX_UTILITY_H
+#define LIBCXX_UTILITY_H
+
+namespace std {
+/// @brief Forward object.
+/// @tparam Args the object type.
+/// @param arg the object.
+/// @return object's rvalue
+template <typename Args>
+inline auto forward(Args& arg) -> Args&& {
+  return static_cast<const Args&&>(arg);
+}
+
+/// @brief Move object.
+/// @tparam Args the object type.
+/// @param arg the object.
+/// @return object's rvalue
+template <typename Args>
+inline auto move(Args&& arg) -> Args&& {
+  return static_cast<Args&&>(arg);
+}
+}  // namespace std
+
+#endif  // LIBCXX_UTILITY_H