From 450fc261cb6598471973c01394f099c5b48856f1 Mon Sep 17 00:00:00 2001
From: Giovanni Bussi <giovanni.bussi@gmail.com>
Date: Thu, 12 Sep 2013 18:19:42 +0200
Subject: [PATCH] Implemented OFile::rewind
---
src/tools/OFile.cpp | 10 ++++++++++
src/tools/OFile.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/src/tools/OFile.cpp b/src/tools/OFile.cpp
index 5ff9a73a1..effc8fa18 100644
--- a/src/tools/OFile.cpp
+++ b/src/tools/OFile.cpp
@@ -280,6 +280,16 @@ OFile& OFile::open(const std::string&path){
return *this;
}
+OFile& OFile::rewind(){
+// we use here "hard" rewind, which means close/reopen
+// the reason is that normal rewind does not work when in append mode
+ plumed_assert(fp);
+ clearFields();
+ fclose(fp);
+ fp=std::fopen(const_cast<char*>(path.c_str()),"w");
+ return *this;
+}
+
}
diff --git a/src/tools/OFile.h b/src/tools/OFile.h
index fe08c9dce..3c6b76cc0 100644
--- a/src/tools/OFile.h
+++ b/src/tools/OFile.h
@@ -184,6 +184,8 @@ this method can be used to clean the field list.
/// Formatted output with << operator
template <class T>
friend OFile& operator<<(OFile&,const T &);
+/// Rewind a file
+ OFile&rewind();
};
/// Write using << syntax
--
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