Initial commit

.gitignore

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+# Directories
+build/
+build-*/
+cmake-build-*/
+.cache/
+out/
+out/Debug/
+out/Release/
+
+# Cmake files
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+CTestTestfile.cmake
+Testing/
+compile_commands.json
+../compile_commands.json
+build/compile_commands.json
+
+# Make / Ninja
+Makefile
+*.ninja
+*.ninja_deps
+*.ninja_log
+rules.ninja
+
+# Object files
+*.o
+*.obj
+*.lo
+*.la
+
+# Binaries
+*.out
+*.exe
+*.dll
+*.so
+*.so.*
+*.dylib
+*.a
+
+# Debug / Sanitizer
+*.dSYM/
+*.gcno
+*.gcda
+*.gcov
+
+# Editors
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+project(calculator VERSION 1.0 LANGUAGES C)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+
+# Export compile_commands.json (para clangd)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+add_compile_options(
+    -Wall
+    -Wextra
+    -Wpedantic
+)
+
+
+include_directories(include)
+
+add_library(arena_lib
+    src/arena.c
+)
+
+add_executable(arena_main src/main.c)
+
+target_link_libraries(arena_main arena_lib)
+
+# ------------------------
+# Testing
+# ------------------------
+
+enable_testing()
+add_subdirectory(test)
+

include/arena.h

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+#ifndef ARENA_H
+#define ARENA_H
+
+#endif // !ARENA_H

src/arena.c

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+#include "arena.h"

src/main.c

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+#include "arena.h"
+#include <stdlib.h>
+
+int main(void) {
+    return EXIT_SUCCESS;
+}

test/CMakeLists.txt

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+find_package(cmocka REQUIRED)
+
+add_executable(test_arena test_arena.c)
+
+target_link_libraries(test_arena
+    arena_lib
+    cmocka::cmocka
+)
+
+add_test(NAME arena_tests COMMAND test_arena)

test/test_arena.c

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+#include "arena.h"
+#include <stdlib.h>
+
+int main(void) {
+    return EXIT_SUCCESS;
+}