Refactor for testing interactive selection input

[alexxy/gromacs.git] / src / gromacs / utility / textwriter.h

diff --git a/src/gromacs/utility/textwriter.h b/src/gromacs/utility/textwriter.h
index de83c98d8a9e609d8d08b216a628a209c18e6b89..a46446ed617eb9dfffc219c4957f63b6614b586d 100644 (file)
--- a/src/gromacs/utility/textwriter.h
+++ b/src/gromacs/utility/textwriter.h
@@ -43,6 +43,8 @@
 #ifndef GMX_UTILITY_TEXTWRITER_H
 #define GMX_UTILITY_TEXTWRITER_H
 
+#include <cstdio>
+
 #include <string>
 
 #include "gromacs/utility/classhelpers.h"
@@ -90,6 +92,21 @@ class TextWriter
          * a file, without the need to construct multiple objects.
          */
         explicit TextWriter(const std::string &filename);
+        /*! \brief
+         * Creates a writer that writes to specified file.
+         *
+         * \param[in]  fp  File handle to write to.
+         * \throws     std::bad_alloc if out of memory.
+         * \throws     FileIOError on any I/O error.
+         *
+         * This constructor is provided for interoperability with C-like code
+         * for writing directly to an already opened file, without the need to
+         * construct multiple objects.
+         *
+         * The caller is responsible of closing \p fp; it is not allowed to
+         * call close() on the writer.
+         */
+        explicit TextWriter(FILE *fp);
         /*! \brief
          * Creates a writer that writes to specified stream.
          *