From: Kevin Day <kevin@kevux.org>
Date: Thu, 7 Jun 2012 03:43:33 +0000 (-0500)
Subject: Update: add file position reset macro
X-Git-Tag: 0.3.0~21
X-Git-Url: https://git.kevux.org/?a=commitdiff_plain;h=9929a6d2a45348204db9a7cf011d5a94fd26f2a4;p=fll

Update: add file position reset macro

Define a macro because creating a function is just overkill for this.
This macro should save a few lines of code when reseting the file position.
---

diff --git a/level_0/f_file/c/file.h b/level_0/f_file/c/file.h
index 063e154..16277a0 100644
--- a/level_0/f_file/c/file.h
+++ b/level_0/f_file/c/file.h
@@ -186,6 +186,15 @@ extern "C"{
   #define f_file_mode_world_wx  (S_IWOTH | S_IXOTH)
 #endif // _di_f_file_modes_
 
+#ifndef _di_f_macro_file_reset_position_
+  #define f_macro_file_reset_position(position, file) \
+    if (position.total_elements == 0) { \
+      fseek(file.file, 0, SEEK_END); \
+      position.total_elements = ftell(file.file); \
+      fseek(file.file, 0, SEEK_SET); \
+    }
+#endif // _di_f_macro_file_reset_position_
+
 #ifndef _di_f_file_open_
   // open a particular file and save its stream
   // filename = name of the file