_string_npos.h

来自「stl的源码」· C头文件 代码 · 共 28 行

/*
 * Copyright (c) 2005
 * Francois Dumont
 *
 * This material is provided "as is", with absolutely no warranty expressed
 * or implied. Any use is at your own risk.
 *
 * Permission to use or copy this software for any purpose is hereby granted
 * without fee, provided the above notices are retained on all copies.
 * Permission to modify the code and to distribute modified code is granted,
 * provided the above notices are retained, and a notice that the code was
 * modified is included with the above copyright notice.
 */

/* This header contains npos definition used in basic_string and rope
 * implementation. It do not have to be guarded as files including it
 * are already guarded and it has sometimes to be included several times.
 */

#if defined (_STLP_STATIC_CONST_INIT_BUG)
  enum { npos = -1 };
#elif defined (__GNUC__) && (__GNUC__ == 2) && (__GNUC_MINOR__ == 96)
  // inline initializer conflicts with 'extern template'
  static const size_t npos;
#else
  static const size_t npos = ~(size_t)0;
#endif