math: refactor out matrix access functions

Author: Wandalen

bash.exe.stackdump

@@ -0,0 +1,29 @@
+Stack trace:
+Frame         Function      Args
+0007FFFF5480  00021006118E (00021028DEE8, 000210272B3E, 000000000000, 0007FFFF4380) msys-2.0.dll+0x2118E
+0007FFFF5480  0002100469BA (000000000000, 000000000000, 000000000000, 000000000004) msys-2.0.dll+0x69BA
+0007FFFF5480  0002100469F2 (00021028DF99, 0007FFFF5338, 000000000000, 000000000000) msys-2.0.dll+0x69F2
+0007FFFF5480  00021006A41E (000000000000, 000000000000, 000000000000, 000000000000) msys-2.0.dll+0x2A41E
+0007FFFF5480  00021006A545 (0007FFFF5490, 000000000000, 000000000000, 000000000000) msys-2.0.dll+0x2A545
+0001004F94B7  00021006B9A5 (0007FFFF5490, 000000000000, 000000000000, 000000000000) msys-2.0.dll+0x2B9A5
+End of stack trace
+Loaded modules:
+000100400000 bash.exe
+7FFBA1FD0000 ntdll.dll
+7FFBA07F0000 KERNEL32.DLL
+7FFB9F590000 KERNELBASE.dll
+7FFB9FD00000 USER32.dll
+7FFB9F970000 win32u.dll
+7FFBA0250000 GDI32.dll
+000210040000 msys-2.0.dll
+7FFB9F9A0000 gdi32full.dll
+7FFB9FC60000 msvcp_win.dll
+7FFB9FAC0000 ucrtbase.dll
+7FFBA1E70000 advapi32.dll
+7FFBA08C0000 msvcrt.dll
+7FFBA0C50000 sechost.dll
+7FFB9F940000 bcrypt.dll
+7FFBA0D00000 RPCRT4.dll
+7FFB9EB60000 CRYPTBASE.DLL
+7FFB9FBE0000 bcryptPrimitives.dll
+7FFBA0E20000 IMM32.DLL

module/core/mod_interface_meta/src/lib.rs

@@ -5,6 +5,10 @@
 
 #![ warn( dead_code ) ]
 
+// /// Derives.
+// layer derive;
+// own use super::derive;
+// // xxx : change to remove need to write explicitly that
 
 // xxx : change to remove need to write explicitly that
 // crate::mod_interface!