quakeforge/tools/qfcc/test/vecops.r

#include "test-harness.h"

vector a = { 1, 0, 0 };
vector b = { 0, 1, 0 };
vector c = { 0, 0, 1 };

int
main ()
{
	vector v = a × b;
	if (v != c) {
		printf ("cross product failed\n");
		return 1;
	};
	if (v • c != [1, 1, 1]) {
		printf ("dot product failed\n");
		return 1;
	}
	return 0;
}
-												[qfcc] Support some unicode ops and GA ops

Only · (dot product) and × (cross product for vector, commutator product
for geometric algebra) have been tested so far, but that involved
fighting with cpp to get it to not convert the · to \U000000b7, which
was rather annoying.

											
										
										
											2023-08-17 07:22:49 +00:00
+								#include "test-harness.h"
 								vector a = { 1, 0, 0 };
 								vector b = { 0, 1, 0 };
 								vector c = { 0, 0, 1 };
 								int
 								main ()
 								{
 									vector v = a × b;
 									if (v != c) {
 										printf ("cross product failed\n");
 										return 1;
 									};
-												[qfcc] Start work on implementing geometric algebra

This gets only some very basics working:
 * Algebra (multi-vector) types: eg @algebra(float(3,0,1)).
 * Algebra scopes (using either the above or @algebra(TYPE_NAME) where
   the above was used in a typedef.
 * Basis blades (eg, e12) done via procedural symbols that evaluate to
   suitable constants based on the basis group for the blade.
 * Addition and subtraction of multi-vectors (only partially tested).
 * Assignment of sub-algebra multi-vectors to full-algebra multi-vectors
   (missing elements zeroed).

There's still much work to be done, but I thought it time to get
something into git.

											
										
										
											2023-08-21 08:37:56 +00:00
+									if (v • c != [1, 1, 1]) {
-												[qfcc] Support some unicode ops and GA ops

Only · (dot product) and × (cross product for vector, commutator product
for geometric algebra) have been tested so far, but that involved
fighting with cpp to get it to not convert the · to \U000000b7, which
was rather annoying.

											
										
										
											2023-08-17 07:22:49 +00:00
+										printf ("dot product failed\n");
 										return 1;
 									}
 									return 0;
 								}