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-rw-r--r--source/cFile.cpp31
1 files changed, 31 insertions, 0 deletions
diff --git a/source/cFile.cpp b/source/cFile.cpp
index 84308984a..caaef010a 100644
--- a/source/cFile.cpp
+++ b/source/cFile.cpp
@@ -198,3 +198,34 @@ int cFile::Tell (void) const
+
+/// Returns the size of file, in bytes, or -1 for failure; asserts if not open
+int cFile::GetSize(void) const
+{
+ assert(IsOpen());
+
+ if (!IsOpen())
+ {
+ return -1;
+ }
+
+ int CurPos = ftell(m_File);
+ if (CurPos < 0)
+ {
+ return -1;
+ }
+ if (fseek(m_File, 0, SEEK_END) != 0)
+ {
+ return -1;
+ }
+ int res = ftell(m_File);
+ if (fseek(m_File, CurPos, SEEK_SET) != 0)
+ {
+ return -1;
+ }
+ return res;
+}
+
+
+
+