// Copyright 2014 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef GESTURES_COMPILER_SPECIFIC_H_
#define GESTURES_COMPILER_SPECIFIC_H_

// Compiler detection.
#if defined(__GNUC__)
#define COMPILER_GCC 1
#elif defined(_MSC_VER)
#define COMPILER_MSVC 1
#else
#error Please add support for your compiler in compiler_specific.h
#endif

// Tell the compiler a function is using a printf-style format string.
// |format_param| is the one-based index of the format string parameter;
// |dots_param| is the one-based index of the "..." parameter.
// For v*printf functions (which take a va_list), pass 0 for dots_param.
// (This is undocumented but matches what the system C headers do.)
#if defined(COMPILER_GCC)
#define PRINTF_FORMAT(format_param, dots_param) \
    __attribute__((format(printf, format_param, dots_param)))
#else
#define PRINTF_FORMAT(format_param, dots_param)
#endif

#endif  // GESTURES_COMPILER_SPECIFIC_H_