Merge pull request #27 from Sigmanificient/c

c/.editorconfig

@@ -0,0 +1,22 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 80
+tab_width = 4
+
+[{Makefile,*.mk}]
+indent_style = tab
+
+[*.nix]
+indent_style = space
+tab_width = 2
+indent_size = 2
+
+[*.lock]
+indent_style = unset
+insert_final_newline = unset

c/.gitignore

@@ -0,0 +1,64 @@
+# binaries
+hello
+
+# language support
+compile_commands.json
+.cache
+
+# nix
+.direnv
+result*
+repl-result-*
+
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf

c/Makefile

@@ -0,0 +1,30 @@
+CC ?= gcc
+CFLAGS += -pedantic -Wall -Wextra -O2
+
+OUT := hello
+BINDIR ?= /usr/bin
+
+SRC += main.c
+OBJ := $(SRC:.c=.o)
+
+.PHONY: all
+all: $(OUT)
+
+$(OUT): $(OBJ)
+	$(CC) -o $@ $<
+
+.PHONY: clean
+clean:
+	$(RM) $(OBJ)
+
+.PHONY: fclean
+fclean: clean
+	$(RM) -r $(OUT)
+
+.PHONY: re
+.NOTPARALLEL: re
+re: fclean all
+
+.PHONY: install
+install:
+	install -D hello ${BINDIR}/hello --mode 0755

c/flake.nix

@@ -0,0 +1,27 @@
+{
+  description = "Aux template for C project";
+
+  inputs.nixpkgs.url = "github:auxolotl/nixpkgs/nixos-unstable";
+
+  outputs =
+    { self, nixpkgs }:
+    let
+      forAllSystems =
+        function:
+        nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (
+          system: function nixpkgs.legacyPackages.${system}
+        );
+    in
+    rec {
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.mkShell { inputsFrom = [ packages.${pkgs.system}.hello ]; };
+      });
+
+      packages = forAllSystems (pkgs: rec {
+        default = hello;
+        hello = pkgs.callPackage ./hello.nix { };
+      });
+
+      overlays.default = final: prev: { hello = prev.callPackage ./default.nix { }; };
+    };
+}

c/hello.nix

@@ -0,0 +1,7 @@
+{ stdenv }:
+stdenv.mkDerivation {
+  name = "hello";
+  src = ./.;
+
+  env.BINDIR = "${placeholder "out"}/bin";
+}

c/main.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    char greet[] = "hello, world!\n";
+    int written = printf("%s", greet);
+
+    return written == (sizeof(greet) - 1)
+        ? EXIT_SUCCESS : EXIT_FAILURE;
+}