std_allocator and testing

makefile

@@ -0,0 +1,24 @@
+# Makefile
+
+# Compiler and flags
+CC := gcc
+CFLAGS := -Wall -Wextra -O2
+LDFLAGS := -lcriterion
+
+# Output binary
+TESTBIN := /tmp/all_tests
+
+# Phony target
+.PHONY: test
+
+test:
+	@echo "Discovering test files..."
+	@files=$$(find . -type f -name 'test*.c'); \
+	if [ -z "$$files" ]; then \
+		echo "No test files found!"; \
+	else \
+		echo "Compiling all test files into $(TESTBIN)..."; \
+		$(CC) $(CFLAGS) $$files -o $(TESTBIN) $(LDFLAGS); \
+		echo "Running tests..."; \
+		$(TESTBIN); \
+	fi