add function to read whole file into buffer

shogun-toolbox · Dec 18, 2011 · 7644ddc · 7644ddc
1 parent f4dcb8a
commit 7644ddc
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diff --git a/src/shogun/io/File.cpp b/src/shogun/io/File.cpp
@@ -177,3 +177,18 @@ char* CFile::get_variable_name()
 {
 	return strdup(variable_name);
 }
+
+char* CFile::read_whole_file(char* fname, size_t& len)
+{
+    FILE* tmpf=fopen(fname, "r");
+    ASSERT(tmpf);
+    fseek(tmpf,0,SEEK_END);
+    len=ftell(tmpf);
+    ASSERT(len>0);
+    rewind(tmpf);
+    char* result = SG_MALLOC(char, len);
+    size_t total=fread(result,1,len,tmpf);
+    ASSERT(total==len);
+    fclose(tmpf);
+    return result;
+}
diff --git a/src/shogun/io/File.h b/src/shogun/io/File.h
@@ -399,6 +399,14 @@ class CFile : public CSGObject
 	/** @return object name */
 	inline virtual const char* get_name() const { return "File"; }
 
+    /** read whole file in memory
+     *
+     * @param fname - file name
+     * @param len - length of file (returned by reference)
+     * @return buffer to read file - needs to be freed with SG_FREE
+     */
+    static char* read_whole_file(char* fname, size_t& len);
+
 protected:
 	/** file object */
 	FILE* file;