Avoid duplication of Complex.hpp in header_unit example

Author: Sebastien Ponce

code/header_units/solution/Complex.hpp

@@ -6,7 +6,7 @@ clean:
 algorithm numeric random vector:
 	${CXX} -std=c++20 -fmodules-ts -x c++-system-header $@
 
-Complex_header_unit: Complex.hpp
+Complex_header_unit: ../Complex.hpp
 	${CXX} -std=c++20 -g -O0 -Wall -Wextra -fmodules-ts -x c++-header $<
 
 main.o: main.cpp Complex_header_unit algorithm numeric random vector

code/header_units/solution/Makefile

@@ -3,7 +3,7 @@ import <algorithm>;
 import <vector>;
 import <numeric>;
 import <random>;
-import "Complex.hpp";
+import "../Complex.hpp";
 
 template<typename T>
 void compute(int len, T initial, T step) {