Initial commit

4 files changed, 161 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6142305
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.o
+*.d
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..bc4ee5d
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,144 @@
+### Settings: Modify the parameters below to configure your project
+###============================================================================
+
+# program name and source directories
+BIN_NAME :=
+SRC_DIRS :=
+
+# general program flags
+# Debug
+MY_CFLAGS = -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -g -fsanitize=address,undefined
+# Release
+# MY_CFLAGS = -O3
+MY_LIBS   =
+WARNINGS  = -fstack-protector-strong -fpie -pedantic -Wall -Wextra
+
+# language specific options
+CFLAGS    = -std=c11
+CXXFLAGS  = -std=c++17
+
+# compiler defaults
+CC  = gcc
+CXX = g++
+
+# static analysis / formatting tools
+CFORMAT = clang-format
+CTIDY = clang-tidy
+
+### Advanced: You should generally not need to modify anything below this line
+###============================================================================
+
+## If no source dirs are specified use files in current working directory
+##-----------------------------------------------------------------------------
+ifeq ($(SRC_DIRS),)
+	SRC_DIRS := .
+endif
+
+## Check if the software being built is a shared library
+##-----------------------------------------------------------------------------
+BIN_SHARED := $(filter -shared,$(MY_CFLAGS))
+
+## If no program name is specified use current directory name or a.out
+##-----------------------------------------------------------------------------
+EMPTY :=
+SPACE := $(EMPTY) $(EMPTY)
+ifeq ($(BIN_NAME),)
+	BIN_NAME := $(lastword $(subst /,$(SPACE),$(subst $(SPACE),_,$(CURDIR))))
+	ifneq ($(BIN_SHARED),)
+		BIN_NAME := $(addsuffix .so,$(addprefix lib,$(BIN_NAME)))
+	endif
+endif
+ifeq ($(BIN_NAME),)
+	BIN_NAME := a.out
+endif
+
+## Find source files in specified directories and name objects and dependencies
+##-----------------------------------------------------------------------------
+SRC_EXTS  := .c .C .cc .cp .cpp .CPP .cxx .c++
+SRC_FILES := $(foreach dir,$(SRC_DIRS),$(wildcard $(addprefix $(dir)/*,$(SRC_EXTS))))
+SRC_CXX   := $(filter-out %.c,$(SRC_FILES))
+OBJECTS   := $(addsuffix .o,$(basename $(SRC_FILES)))
+DEPENDS   := $(OBJECTS:.o=.d)
+
+## Compiler and linker related actions
+##-----------------------------------------------------------------------------
+CMP_C := $(CC) $(MY_CFLAGS) $(CFLAGS) $(CPPFLAGS) $(WARNINGS) -MD
+LNK_C := $(CC) $(MY_CFLAGS) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS)
+
+CMP_CXX := $(CXX) $(MY_CFLAGS) $(CXXFLAGS) $(CPPFLAGS) $(WARNINGS) -MD
+LNK_CXX := $(CXX) $(MY_CFLAGS) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)
+
+## Clear built-in .SUFFIXES and set .PHONY targets
+##-----------------------------------------------------------------------------
+.SUFFIXES:
+
+.PHONY: all check clean format objects
+
+## Debug values of makefile variables, to check use 'make print-VARNAME'
+##-----------------------------------------------------------------------------
+print-%: ; @echo $*=$($*)
+
+## Build everything
+##-----------------------------------------------------------------------------
+all: format check $(BIN_NAME)
+
+## Static analysis
+##-----------------------------------------------------------------------------
+check: $(SRC_FILES)
+	$(CTIDY) $(CPPFLAGS) $(SRC_FILES)
+
+## Formatting
+##-----------------------------------------------------------------------------
+format: $(SRC_FILES)
+	$(CFORMAT) -i $(SRC_FILES)
+
+## Clean up build
+##-----------------------------------------------------------------------------
+clean:
+	$(RM) $(DEPENDS) $(OBJECTS) $(BIN_NAME) $(BIN_NAME).exe
+
+## Build object files
+##-----------------------------------------------------------------------------
+objects: $(OBJECTS)
+
+%.o: %.c
+	$(CMP_C) -c $< -o $@
+
+%.o: %.C
+	$(CMP_CXX) -c $< -o $@
+
+%.o: %.cc
+	$(CMP_CXX) -c $< -o $@
+
+%.o: %.cp
+	$(CMP_CXX) -c $< -o $@
+
+%.o: %.cpp
+	$(CMP_CXX) -c $< -o $@
+
+%.o: %.CPP
+	$(CMP_CXX) -c $< -o $@
+
+%.o: %.cxx
+	$(CMP_CXX) -c $< -o $@
+
+%.o: %.c++
+	$(CMP_CXX) -c $< -o $@
+
+## Build dependencies
+##-----------------------------------------------------------------------------
+-include $(DEPENDS)
+
+## Build executable
+##-----------------------------------------------------------------------------
+$(BIN_NAME): $(OBJECTS)
+ifeq ($(SRC_CXX),)
+	$(LNK_C) $(OBJECTS) $(MY_LIBS) -o $@
+else
+	$(LNK_CXX) $(OBJECTS) $(MY_LIBS) -o $@
+endif
+ifeq ($(BIN_SHARED),)
+	@echo To execute program, type ./$@
+else
+	@echo To link shared library, use $@
+endif
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..dd41600
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,14 @@
+#include <iostream>
+
+int add_one(int x);
+
+int main() {
+	std::cout << "hello world\n";
+	int* x = nullptr;
+	int y = 2;
+	x = &y;
+	std::cout << *x << '\n';
+	auto z = add_one(*x);
+	std::cout << z << '\n';
+	return *x;
+}
diff --git a/math.cpp b/math.cpp
new file mode 100644
index 0000000..de418d7
--- /dev/null
+++ b/math.cpp
@@ -0,0 +1 @@
+int add_one(int x) { return x + 1; }