Added ev_helpers.h

Signed-off-by: Robear Selwans <robear.selwans@outlook.com>

ev_helpers.h

@@ -0,0 +1,47 @@
+/*!
+ * \file ev_helpers.h
+ */
+#ifndef EV_HELPERS_HEADER
+#define EV_HELPERS_HEADER
+
+#include "ev_macros.h"
+#include "ev_str.h"
+#if defined(EV_HELPERS_SHARED)
+# if defined (EV_HELPERS_IMPL)
+#  define EV_HELPERS_API EV_EXPORT
+# else
+#  define EV_HELPERS_API EV_IMPORT
+# endif
+#else
+# define EV_HELPERS_API
+#endif
+
+EV_HELPERS_API evstring
+evstring_readFile(
+  evstring filePath);
+
+#ifdef EV_HELPERS_IMPLEMENTATION
+#undef EV_HELPERS_IMPLEMENTATION
+
+evstring
+evstring_readFile(
+  evstring filePath)
+{
+  FILE* f = fopen(filePath, "r");
+  if(f == NULL) return EV_INVALID(evstring);
+
+  fseek(f, 0, SEEK_END);
+  u32 buflen = ftell(f);
+  fseek(f, 0, SEEK_SET);
+
+  evstring res = evstring_new("");
+  evstring_setLength(&res, buflen);
+  fread(res, 1, buflen, f);
+  fclose(f);
+
+  return res;
+}
+
+#endif
+
+#endif