fixup: constant generation: better header id

Author: illwieckz

src/common/math/Constant.h

@@ -1,8 +1,8 @@
 // Generated with tools/math-constant/math-constant.py
 // Do not modify!
 
-#ifndef COMMON_CONSTANT_H_
-#define COMMON_CONSTANT_H_
+#ifndef COMMON_MATH_CONSTANT_H_
+#define COMMON_MATH_CONSTANT_H_
 
 namespace Math {
 	//        Type  Name                    Value     Operation  GNU          std::numbers
@@ -58,4 +58,4 @@ namespace Math {
 	constexpr double inv_sqrt3_d   =   .57735026918962576451; // 1÷√3                    inv_sqrt3
 }
 
-#endif // COMMON_CONSTANT_H_
+#endif // COMMON_MATH_CONSTANT_H_

tools/math-constant/math-constant.py

@@ -12,6 +12,8 @@
 header = "// Generated with {}\n".format(script_path)
 header += "// Do not modify!"
 
+header_id = "COMMON_MATH_CONSTANT_H_"
+
 constants = []
 
 class _phi:
@@ -287,8 +289,8 @@ def output(string=""):
 
 output(header)
 output()
-output("#ifndef COMMON_CONSTANT_H_")
-output("#define COMMON_CONSTANT_H_")
+output("#ifndef {}".format(header_id))
+output("#define {}".format(header_id))
 output()
 output("namespace Math {")
 
@@ -365,6 +367,6 @@ def output(string=""):
 
 output("}")
 output()
-output("#endif // COMMON_CONSTANT_H_")
+output("#endif // {}".format(header_id))
 
 file_handle.close()