text: #ifndef __CURL_CURLRULES_H
  #define __CURL_CURLRULES_H
  /***************************************************************************
   *                                  _   _ ____  _
   *  Project                     ___| | | |  _ \| |
   *                             / __| | | | |_) | |
   *                            | (__| |_| |  _ <| |___
   *                             \___|\___/|_| \_\_____|
   *
   * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
   *
   * This software is licensed as described in the file COPYING, which
   * you should have received as part of this distribution. The terms
   * are also available at http://curl.haxx.se/docs/copyright.html.
   *
   * You may opt to use, copy, modify, merge, publish, distribute and/or sell
   * copies of the Software, and permit persons to whom the Software is
   * furnished to do so, under the terms of the COPYING file.
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
   * KIND, either express or implied.
   *
   ***************************************************************************/
  
  /* ================================================================ */
  /*                    COMPILE TIME SANITY CHECKS                    */
  /* ================================================================ */
  
  /*
   * NOTE 1:
   * -------
   *
   * All checks done in this file are intentionally placed in a public
   * header file which is pulled by curl/curl.h when an application is
   * being built using an already built libcurl library. Additionally
   * this file is also included and used when building the library.
   *
   * If compilation fails on this file it is certainly sure that the
   * problem is elsewhere. It could be a problem in the curlbuild.h
   * header file, or simply that you are using different compilation
   * settings than those used to build the library.
   *
   * Nothing in this file is intended to be modified or adjusted by the
   * curl library user nor by the curl library builder.
   *
   * Do not deactivate any check, these are done to make sure that the
   * library is properly built and used.
   *
   * You can find further help on the libcurl development mailing list:
   * http://cool.haxx.se/mailman/listinfo/curl-library/
   *
   * NOTE 2
   * ------
   *
   * Some of the following compile time checks are based on the fact
   * that the dimension of a constant array can not be a negative one.
   * In this way if the compile time verification fails, the compilation
   * will fail issuing an error. The error description wording is compiler
   * dependent but it will be quite similar to one of the following:
   *
   *   "negative subscript or subscript is too large"
   *   "array must have at least one element"
   *   "-1 is an illegal array size"
   *   "size of array is negative"
   *
   * If you are building an application which tries to use an already
   * built libcurl library and you are getting this kind of errors on
   * this file, it is a clear indication that there is a mismatch between
   * how the library was built and how you are trying to use it for your
   * application. Your already compiled or binary library provider is the
   * only one who can give you the details you need to properly use it.
   */
  
  /*
   * Verify that some macros are actually defined.
   */
  
  #ifndef CURL_SIZEOF_LONG
  #  error "CURL_SIZEOF_LONG definition is missing!"
     Error Compilation_aborted_CURL_SIZEOF_LONG_is_missing
  #endif
  
  #ifndef CURL_TYPEOF_CURL_SOCKLEN_T
  #  error "CURL_TYPEOF_CURL_SOCKLEN_T definition is missing!"
     Error Compilation_aborted_CURL_TYPEOF_CURL_SOCKLEN_T_is_missing
  #endif
  
  #ifndef CURL_SIZEOF_CURL_SOCKLEN_T
  #  error "CURL_SIZEOF_CURL_SOCKLEN_T definition is missing!"
     Error Compilation_aborted_CURL_SIZEOF_CURL_SOCKLEN_T_is_missing
  #endif
  
  #ifndef CURL_TYPEOF_CURL_OFF_T
  #  error "CURL_TYPEOF_CURL_OFF_T definition is missing!"
     Error Compilation_aborted_CURL_TYPEOF_CURL_OFF_T_is_missing
  #endif
  
  #ifndef CURL_FORMAT_CURL_OFF_T
  #  error "CURL_FORMAT_CURL_OFF_T definition is missing!"
     Error Compilation_aborted_CURL_FORMAT_CURL_OFF_T_is_missing
  #endif
  
  #ifndef CURL_FORMAT_CURL_OFF_TU
  #  error "CURL_FORMAT_CURL_OFF_TU definition is missing!"
     Error Compilation_aborted_CURL_FORMAT_CURL_OFF_TU_is_missing
  #endif
  
  #ifndef CURL_FORMAT_OFF_T
  #  error "CURL_FORMAT_OFF_T definition is missing!"
     Error Compilation_aborted_CURL_FORMAT_OFF_T_is_missing
  #endif
  
  #ifndef CURL_SIZEOF_CURL_OFF_T
  #  error "CURL_SIZEOF_CURL_OFF_T definition is missing!"
     Error Compilation_aborted_CURL_SIZEOF_CURL_OFF_T_is_missing
  #endif
  
  #ifndef CURL_SUFFIX_CURL_OFF_T
  #  error "CURL_SUFFIX_CURL_OFF_T definition is missing!"
     Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_T_is_missing
  #endif
  
  #ifndef CURL_SUFFIX_CURL_OFF_TU
  #  error "CURL_SUFFIX_CURL_OFF_TU definition is missing!"
     Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_TU_is_missing
  #endif
  
  /*
   * Macros private to this header file.
   */
  
  #define CurlchkszEQ(t, s) sizeof(t) == s ? 1 : -1
  
  #define CurlchkszGE(t1, t2) sizeof(t1) >= sizeof(t2) ? 1 : -1
  
  /*
   * Verify that the size previously defined and expected for long
   * is the same as the one reported by sizeof() at compile time.
   */
  
  typedef char
    __curl_rule_01__
      [CurlchkszEQ(long, CURL_SIZEOF_LONG)];
  
  /*
   * Verify that the size previously defined and expected for
   * curl_off_t is actually the the same as the one reported
   * by sizeof() at compile time.
   */
  
  typedef char
    __curl_rule_02__
      [CurlchkszEQ(curl_off_t, CURL_SIZEOF_CURL_OFF_T)];
  
  /*
   * Verify at compile time that the size of curl_off_t as reported
   * by sizeof() is greater or equal than the one reported for long
   * for the current compilation.
   */
  
  typedef char
    __curl_rule_03__
      [CurlchkszGE(curl_off_t, long)];
  
  /*
   * Verify that the size previously defined and expected for
   * curl_socklen_t is actually the the same as the one reported
   * by sizeof() at compile time.
   */
  
  typedef char
    __curl_rule_04__
      [CurlchkszEQ(curl_socklen_t, CURL_SIZEOF_CURL_SOCKLEN_T)];
  
  /*
   * Verify at compile time that the size of curl_socklen_t as reported
   * by sizeof() is greater or equal than the one reported for int for
   * the current compilation.
   */
  
  typedef char
    __curl_rule_05__
      [CurlchkszGE(curl_socklen_t, int)];
  
  /* ================================================================ */
  /*          EXTERNALLY AND INTERNALLY VISIBLE DEFINITIONS           */
  /* ================================================================ */
  
  /*
   * CURL_ISOCPP and CURL_OFF_T_C definitions are done here in order to allow
   * these to be visible and exported by the external libcurl interface API,
   * while also making them visible to the library internals, simply including
   * curl_setup.h, without actually needing to include curl.h internally.
   * If some day this section would grow big enough, all this should be moved
   * to its own header file.
   */
  
  /*
   * Figure out if we can use the ## preprocessor operator, which is supported
   * by ISO/ANSI C and C++. Some compilers support it without setting __STDC__
   * or  __cplusplus so we need to carefully check for them too.
   */
  
  #if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) || \
    defined(__HP_aCC) || defined(__BORLANDC__) || defined(__LCC__) || \
    defined(__POCC__) || defined(__SALFORDC__) || defined(__HIGHC__) || \
    defined(__ILEC400__)
    /* This compiler is believed to have an ISO compatible preprocessor */
  #define CURL_ISOCPP
  #else
    /* This compiler is believed NOT to have an ISO compatible preprocessor */
  #undef CURL_ISOCPP
  #endif
  
  /*
   * Macros for minimum-width signed and unsigned curl_off_t integer constants.
   */
  
  #if defined(__BORLANDC__) && (__BORLANDC__ == 0x0551)
  #  define __CURL_OFF_T_C_HLPR2(x) x
  #  define __CURL_OFF_T_C_HLPR1(x) __CURL_OFF_T_C_HLPR2(x)
  #  define CURL_OFF_T_C(Val)  __CURL_OFF_T_C_HLPR1(Val) ## \
                               __CURL_OFF_T_C_HLPR1(CURL_SUFFIX_CURL_OFF_T)
  #  define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HLPR1(Val) ## \
                               __CURL_OFF_T_C_HLPR1(CURL_SUFFIX_CURL_OFF_TU)
  #else
  #  ifdef CURL_ISOCPP
  #    define __CURL_OFF_T_C_HLPR2(Val,Suffix) Val ## Suffix
  #  else
  #    define __CURL_OFF_T_C_HLPR2(Val,Suffix) Val/**/Suffix
  #  endif
  #  define __CURL_OFF_T_C_HLPR1(Val,Suffix) __CURL_OFF_T_C_HLPR2(Val,Suffix)
  #  define CURL_OFF_T_C(Val)  __CURL_OFF_T_C_HLPR1(Val,CURL_SUFFIX_CURL_OFF_T)
  #  define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HLPR1(Val,CURL_SUFFIX_CURL_OFF_TU)
  #endif
  
  /*
   * Get rid of macros private to this header file.
   */
  
  #undef CurlchkszEQ
  #undef CurlchkszGE
  
  /*
   * Get rid of macros not intended to exist beyond this point.
   */
  
  #undef CURL_PULL_WS2TCPIP_H
  #undef CURL_PULL_SYS_TYPES_H
  #undef CURL_PULL_SYS_SOCKET_H
  #undef CURL_PULL_SYS_POLL_H
  #undef CURL_PULL_STDINT_H
  #undef CURL_PULL_INTTYPES_H
  
  #undef CURL_TYPEOF_CURL_SOCKLEN_T
  #undef CURL_TYPEOF_CURL_OFF_T
  
  #ifdef CURL_NO_OLDIES
  #undef CURL_FORMAT_OFF_T /* not required since 7.19.0 - obsoleted in 7.20.0 */
  #endif
  
  #endif /* __CURL_CURLRULES_H */
  