From b674653fa2d911b65a14062498a006e47f2a80ba Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Thu, 8 Jan 2026 02:06:19 +0900
Subject: feat: support -D flag

---
 tests/define_option.sh | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 tests/define_option.sh

(limited to 'tests/define_option.sh')

diff --git a/tests/define_option.sh b/tests/define_option.sh
new file mode 100644
index 0000000..69ae9c9
--- /dev/null
+++ b/tests/define_option.sh
@@ -0,0 +1,73 @@
+cat <<'EOF' > expected
+42
+EOF
+cat <<'EOF' > main.c
+int printf(const char*, ...);
+
+int main() {
+#ifdef FOO
+    printf("%d\n", 42);
+#else
+    printf("%d\n", 0);
+#endif
+}
+EOF
+"$ducc" -DFOO -o a.out main.c
+./a.out > output
+diff -u expected output
+
+cat <<'EOF' > expected
+100
+EOF
+cat <<'EOF' > main.c
+int printf(const char*, ...);
+
+int main() {
+    printf("%d\n", FOO);
+}
+EOF
+"$ducc" -DFOO=100 -o a.out main.c
+./a.out > output
+diff -u expected output
+
+cat <<'EOF' > expected
+10,5
+EOF
+cat <<'EOF' > main.c
+int printf(const char*, ...);
+
+int main() {
+    printf("%d,%d\n", A, B);
+}
+EOF
+"$ducc" -DA=10 -DB=5 -o a.out main.c
+./a.out > output
+diff -u expected output
+
+cat <<'EOF' > expected
+1
+EOF
+cat <<'EOF' > main.c
+int printf(const char*, ...);
+
+int main() {
+    printf("%d\n", FEATURE);
+}
+EOF
+"$ducc" -DFEATURE -o a.out main.c
+./a.out > output
+diff -u expected output
+
+cat <<'EOF' > expected
+1,2
+EOF
+cat <<'EOF' > main.c
+int printf(const char*, ...);
+
+int main() {
+    printf("%d,%d\n", A, B);
+}
+EOF
+"$ducc" -D A -D B=2 -o a.out main.c
+./a.out > output
+diff -u expected output
-- 
cgit v1.2.3-70-g09d2