Finsh 5

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;
 }

5/io/tmpfile.c

@@ -28,7 +28,5 @@ int main(void) {
 
   fclose(fp);
 
-
-
   return 0;
 }