Switch to C instead of C++, added example, program now reads file

.dir-locals.el

@@ -3,5 +3,4 @@
 
 ((nil      . ((compile-command . "make MODE=debug -B -k")
               (+license/license-choice . "MIT License")))
- (c-mode   . ((mode . clang-format)))
+ (c-mode   . ((mode . clang-format))))
- (c++-mode . ((mode . clang-format))))

Makefile

@@ -1,10 +1,10 @@
-CXX=c++
+CC=cc
 
 DIST=build
 OUT=$(DIST)/main.out
 
 LDFLAGS=
-GFLAGS=-Wall -Wextra -Wpedantic -std=c++23
+GFLAGS=-Wall -Wextra -Wpedantic -std=c23
 DFLAGS=-ggdb -fsanitize=address -fsanitize=undefined
 RFLAGS=-O3
 
@@ -16,10 +16,10 @@ CFLAGS=$(GFLAGS) $(DFLAGS)
 endif
 
 $(OUT): $(DIST)/main.o | $(DIST)
-	$(CXX) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-$(DIST)/main.o: main.cpp | $(DIST)
+$(DIST)/main.o: main.c | $(DIST)
-	$(CXX) $(CFLAGS) -c -o $@ $^
+	$(CC) $(CFLAGS) -c -o $@ $^
 
 $(DIST):
 	mkdir -p $(DIST)

examples/hello-world.arl

@@ -0,0 +1 @@
+"Hello, world! println

main.c

@@ -0,0 +1,56 @@
+/* main.cpp:
+ * Created: 2026-01-22
+ * Author: Aryadev Chavali
+ * License: See end of file
+ * Commentary:
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define FAIL(...)                 \
+  do                              \
+  {                               \
+    fprintf(stderr, "FAIL: ");    \
+    fprintf(stderr, __VA_ARGS__); \
+    abort();                      \
+  } while (0)
+
+char *read_file(const char *filename)
+{
+  FILE *fp = fopen(filename, "rb");
+  if (!fp)
+    FAIL("File `%s` does not exist\n", filename);
+
+  fseek(fp, 0, SEEK_END);
+  long size = ftell(fp);
+  fseek(fp, 0, SEEK_SET);
+  char *buffer = calloc(1, size + 1);
+  fread(buffer, size, 1, fp);
+  fclose(fp);
+
+  buffer[size] = '\0';
+  return buffer;
+}
+
+int main(void)
+{
+  const char *filename = "./examples/hello-world.arl";
+  char *buffer         = read_file(filename);
+  printf("%s => %s\n", filename, buffer);
+  free(buffer);
+  return 0;
+}
+
+/* Copyright (C) 2026 Aryadev Chavali
+
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the MIT License for details.
+
+ * You may distribute and modify this code under the terms of the MIT License,
+ * which you should have received a copy of along with this program.  If not,
+ * please go to <https://opensource.org/license/MIT>.
+
+ */

main.cpp

@@ -1,26 +0,0 @@
-/* main.cpp:
- * Created: 2026-01-22
- * Author: Aryadev Chavali
- * License: See end of file
- * Commentary:
- */
-
-#include <cstdio>
-
-int main(void)
-{
-  puts("Hello, world!");
-  return 0;
-}
-
-/* Copyright (C) 2026 Aryadev Chavali
-
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE.  See the MIT License for details.
-
- * You may distribute and modify this code under the terms of the MIT License,
- * which you should have received a copy of along with this program.  If not,
- * please go to <https://opensource.org/license/MIT>.
-
- */