feat: Add matrix multiplication benchmark and implement core stdlib functions for list, string, and time operations.

Author: ProgrammerKR

benchmarks/macro/matrix_mul.prox

@@ -1,5 +1,6 @@
 
 func create_matrix(rows, cols) {
+    print("Creating matrix " + to_string(rows) + "x" + to_string(cols));
     let m = [];
     for (let i = 0; i < rows; i = i + 1) {
         let row = [];
@@ -8,6 +9,7 @@ func create_matrix(rows, cols) {
         }
         list_push(m, row);
     }
+    print("Matrix created with " + to_string(len(m)) + " rows");
     return m;
 }
 
@@ -51,7 +53,13 @@ func main() {
     let elapsed = clock() - start;
 
     print("Time: " + to_string(elapsed));
-    print("C[0][0]: " + to_string(c[0][0]));
+    if (c == null) {
+        print("C is null");
+    } else {
+        print("Rows: " + to_string(len(c)));
+        if (len(c) > 0) print("Cols: " + to_string(len(c[0])));
+        print("C[0][0]: " + to_string(c[0][0]));
+    }
 }
 
 main();

src/stdlib/stdlib_core.c

@@ -33,7 +33,8 @@ extern Value native_clock(int argCount, Value* args);
 static Value native_len(int argCount, Value* args) {
     if (argCount < 1) return NUMBER_VAL(0);
     if (IS_STRING(args[0])) return NUMBER_VAL((double)AS_STRING(args[0])->length);
-    // TODO: List/Map support
+    if (IS_LIST(args[0])) return NUMBER_VAL((double)AS_LIST(args[0])->count);
+    if (IS_MAP(args[0])) return NUMBER_VAL((double)AS_MAP(args[0])->count);
     return NUMBER_VAL(0);
 }