From dbf45fa592b3e3cb09b8888a161712b4b9247742 Mon Sep 17 00:00:00 2001
From: Saturneric <eric.bktu@gmail.com>
Date: Tue, 8 Dec 2020 15:06:32 +0800
Subject: [PATCH] Finsh 5

---
 5/io/fmemopen.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 5/io/tmpfile.c  |  2 --
 2 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/5/io/fmemopen.c b/5/io/fmemopen.c
index 33221da..8bb6e37 100644
--- a/5/io/fmemopen.c
+++ b/5/io/fmemopen.c
@@ -1,6 +1,52 @@
 #include <stdio.h>
 
 int main(void) {
-  // TODO
+  char buf[1024];
+
+  FILE *fp = fmemopen(buf, sizeof(buf), "r+");
+
+  fprintf(fp, "Hello World!");
+
+  fseek(fp, 0, SEEK_SET);
+
+  char buf2[1024];
+
+  fscanf(fp, "%s", buf2);
+
+  printf("buf2: %s\n", buf2);
+
+  fclose(fp);
+
+  char *pbuf = NULL;
+
+  size_t buf_size = 1024u;
+
+  FILE *fp2 = open_memstream(&pbuf, &buf_size);
+
+  if(fp2 == NULL) {
+   printf("open_memstream error\n");
+   return -1;
+  }
+
+  for(int i = 0; i < 2048; i++){
+    fprintf(fp2, "TTTest ");
+  }
+  
+  printf("pbuf: %p\n", pbuf);
+
+  fflush(fp2);
+
+  printf("pbuf: %p\n", pbuf);
+
+  for(int i = 0; i < 8192; i++){
+    fprintf(fp2, "TTTest ERRRRR");
+  }
+
+  fflush(fp2);
+
+  printf("pbuf: %p\n", pbuf);
+
+  fclose(fp2);
+
   return 0;
 }
diff --git a/5/io/tmpfile.c b/5/io/tmpfile.c
index 370e851..0c68796 100644
--- a/5/io/tmpfile.c
+++ b/5/io/tmpfile.c
@@ -28,7 +28,5 @@ int main(void) {
 
   fclose(fp);
 
-
-
   return 0;
 }