From 565a61dd9bf514e75d6c5406010535d04650bd6e Mon Sep 17 00:00:00 2001
From: stmctommyau <stmctommyau@gmail.com>
Date: Sat, 16 Sep 2023 17:59:00 +0800
Subject: [PATCH] fix

---
 utils.h | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/utils.h b/utils.h
index c4b3c20..995ab0c 100644
--- a/utils.h
+++ b/utils.h
@@ -31,13 +31,17 @@ void fflush_stdin(){
   #endif
 }
 
-char * welcome_message(FILE * fp){ //cross compatible
-    if(!fp){//if fp is NULL
+char * welcome_message(void * ptr){ //cross compatible
+
+    if(!ptr){//if fp is NULL
       return "><Welcome to the Student Union POS system><\n";
     }
-    fprintf(fp,"><Welcome to the Student Union POS system><\n");//welcome messgae
+    if(feof(ptr)){// if ptr a string or file
+      sprintf(ptr,"><Welcome to the Student Union POS system><\n");//welcome message
+    }else{
+      fprintf(ptr,"><Welcome to the Student Union POS system><\n");//welcome message
+    }
 }
-
 int choices_selecter(char * Items[],int items,char * welcome_messages){
   int choice = 0;
   do{