Initial commitHEADmaster

Signed-off-by: Andrew Clayton <ac@sigsegv.uk>

1 files changed, 41 insertions, 0 deletions

diff --git a/examples/pass-by-value.c b/examples/pass-by-value.c
new file mode 100644
index 0000000..c452591
--- /dev/null
+++ b/examples/pass-by-value.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+struct s {
+	int i;
+};
+
+static void fv(struct s *s)
+{
+	/* Do something with s */
+
+	free(s);
+	s = NULL;
+}
+
+static void fr(struct s **s)
+{
+	/* Do something with s */
+
+	free(*s);
+	*s = NULL;
+}
+
+int main(void)
+{
+	struct s *s;
+
+	s = malloc(sizeof(*s));
+	printf("s: %p\n", s);
+	fv(s);
+	printf("s: %p\n", s);
+
+	printf("\n");
+
+	s = malloc(sizeof(*s));
+	printf("s: %p\n", s);
+	fr(&s);
+	printf("s: %p\n", s);
+
+	return 0;
+}