impl preprocessing tenaries

omdxp · Sep 8, 2024 · 49f5e15 · 49f5e15
1 parent b68da46
commit 49f5e15
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/preprocessor/preprocessor.c b/preprocessor/preprocessor.c
@@ -1330,7 +1330,13 @@ int preprocessor_evaluate_exp(struct compile_process *compiler,
 
   long left_operand = preprocessor_evaluate(compiler, node->exp.left);
   if (node->exp.right->type == PREPROCESSOR_TENARY_NODE) {
-#warning "handle ternary"
+    if (left_operand) {
+      return preprocessor_evaluate(compiler,
+                                   node->exp.right->tenary_node.true_node);
+    } else {
+      return preprocessor_evaluate(compiler,
+                                   node->exp.right->tenary_node.false_node);
+    }
   }
 
   long right_operand = preprocessor_evaluate(compiler, node->exp.right);

diff --git a/test.c b/test.c
@@ -1,3 +1,3 @@
-#define ABC (1 + 2 * (9 - 3))
+#define ABC 0 ? 2 : 3
 
 int main() { return ABC; }