From ca2d978370040de111942fb1bb5a2a2eab4731e2 Mon Sep 17 00:00:00 2001
From: will_zorin <>
Date: Thu, 7 Nov 2024 22:36:57 +0800
Subject: [PATCH] the first commit: add show_bytes.c

---
 README       |  1 +
 show_bytes.c | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 README
 create mode 100644 show_bytes.c

diff --git a/README b/README
new file mode 100644
index 0000000..37c5b78
--- /dev/null
+++ b/README
@@ -0,0 +1 @@
+This project just do for my csapp practice, over.
diff --git a/show_bytes.c b/show_bytes.c
new file mode 100644
index 0000000..75a952a
--- /dev/null
+++ b/show_bytes.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+
+typedef unsigned char *byte_pointer;
+
+void show_bytes(byte_pointer start, size_t len) {
+	size_t i;
+	for (i = 0; i < len; i++)
+		printf(" %.2x", start[i]);
+	printf("\n");
+}
+
+void show_int(int x) {
+	show_bytes((byte_pointer) &x, sizeof(int));
+}
+
+void show_float(float x) {
+	show_bytes((byte_pointer) &x, sizeof(float));
+}
+
+void show_pointer(void *x) {
+	show_bytes((byte_pointer) &x, sizeof(void *));
+}
+
+void test_show_bytes(int val) {
+	int ival = val;
+	float fval = (float) ival;
+	int *pval = &ival;
+	show_int(ival);
+	show_float(fval);
+	show_pointer(pval);
+}
+
+void main(void) {
+	int test_val = 12345;
+	test_show_bytes(test_val);
+}