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253 lines
8.3 KiB
C
253 lines
8.3 KiB
C
#ifndef __CURL_CURLRULES_H
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#define __CURL_CURLRULES_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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/* ================================================================ */
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/* COMPILE TIME SANITY CHECKS */
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/* ================================================================ */
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/*
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* NOTE 1:
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* -------
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*
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* All checks done in this file are intentionally placed in a public
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* header file which is pulled by curl/curl.h when an application is
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* being built using an already built libcurl library. Additionally
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* this file is also included and used when building the library.
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*
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* If compilation fails on this file it is certainly sure that the
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* problem is elsewhere. It could be a problem in the curlbuild.h
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* header file, or simply that you are using different compilation
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* settings than those used to build the library.
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*
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* Nothing in this file is intended to be modified or adjusted by the
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* curl library user nor by the curl library builder.
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*
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* Do not deactivate any check, these are done to make sure that the
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* library is properly built and used.
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*
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* You can find further help on the libcurl development mailing list:
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* http://cool.haxx.se/mailman/listinfo/curl-library/
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*
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* NOTE 2
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* ------
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*
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* Some of the following compile time checks are based on the fact
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* that the dimension of a constant array can not be a negative one.
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* In this way if the compile time verification fails, the compilation
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* will fail issuing an error. The error description wording is compiler
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* dependent but it will be quite similar to one of the following:
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*
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* "negative subscript or subscript is too large"
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* "array must have at least one element"
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* "-1 is an illegal array size"
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* "size of array is negative"
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*
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* If you are building an application which tries to use an already
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* built libcurl library and you are getting this kind of errors on
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* this file, it is a clear indication that there is a mismatch between
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* how the library was built and how you are trying to use it for your
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* application. Your already compiled or binary library provider is the
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* only one who can give you the details you need to properly use it.
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*/
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/*
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* Verify that some macros are actually defined.
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*/
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#ifndef CURL_SIZEOF_LONG
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# error "CURL_SIZEOF_LONG definition is missing!"
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Error Compilation_aborted_CURL_SIZEOF_LONG_is_missing
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#endif
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#ifndef CURL_TYPEOF_CURL_SOCKLEN_T
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# error "CURL_TYPEOF_CURL_SOCKLEN_T definition is missing!"
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Error Compilation_aborted_CURL_TYPEOF_CURL_SOCKLEN_T_is_missing
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#endif
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#ifndef CURL_SIZEOF_CURL_SOCKLEN_T
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# error "CURL_SIZEOF_CURL_SOCKLEN_T definition is missing!"
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Error Compilation_aborted_CURL_SIZEOF_CURL_SOCKLEN_T_is_missing
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#endif
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#ifndef CURL_TYPEOF_CURL_OFF_T
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# error "CURL_TYPEOF_CURL_OFF_T definition is missing!"
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Error Compilation_aborted_CURL_TYPEOF_CURL_OFF_T_is_missing
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#endif
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#ifndef CURL_FORMAT_CURL_OFF_T
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# error "CURL_FORMAT_CURL_OFF_T definition is missing!"
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Error Compilation_aborted_CURL_FORMAT_CURL_OFF_T_is_missing
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#endif
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#ifndef CURL_FORMAT_CURL_OFF_TU
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# error "CURL_FORMAT_CURL_OFF_TU definition is missing!"
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Error Compilation_aborted_CURL_FORMAT_CURL_OFF_TU_is_missing
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#endif
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#ifndef CURL_FORMAT_OFF_T
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# error "CURL_FORMAT_OFF_T definition is missing!"
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Error Compilation_aborted_CURL_FORMAT_OFF_T_is_missing
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#endif
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#ifndef CURL_SIZEOF_CURL_OFF_T
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# error "CURL_SIZEOF_CURL_OFF_T definition is missing!"
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Error Compilation_aborted_CURL_SIZEOF_CURL_OFF_T_is_missing
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#endif
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#ifndef CURL_SUFFIX_CURL_OFF_T
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# error "CURL_SUFFIX_CURL_OFF_T definition is missing!"
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Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_T_is_missing
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#endif
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#ifndef CURL_SUFFIX_CURL_OFF_TU
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# error "CURL_SUFFIX_CURL_OFF_TU definition is missing!"
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Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_TU_is_missing
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#endif
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/*
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* Macros private to this header file.
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*/
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#define CurlchkszEQ(t, s) sizeof(t) == s ? 1 : -1
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#define CurlchkszGE(t1, t2) sizeof(t1) >= sizeof(t2) ? 1 : -1
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/*
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* Verify that the size previously defined and expected for long
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* is the same as the one reported by sizeof() at compile time.
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*/
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typedef char
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__curl_rule_01__
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[CurlchkszEQ(long, CURL_SIZEOF_LONG)];
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/*
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* Verify that the size previously defined and expected for
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* curl_off_t is actually the the same as the one reported
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* by sizeof() at compile time.
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*/
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typedef char
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__curl_rule_02__
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[CurlchkszEQ(curl_off_t, CURL_SIZEOF_CURL_OFF_T)];
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/*
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* Verify at compile time that the size of curl_off_t as reported
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* by sizeof() is greater or equal than the one reported for long
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* for the current compilation.
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*/
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typedef char
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__curl_rule_03__
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[CurlchkszGE(curl_off_t, long)];
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/*
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* Verify that the size previously defined and expected for
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* curl_socklen_t is actually the the same as the one reported
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* by sizeof() at compile time.
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*/
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typedef char
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__curl_rule_04__
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[CurlchkszEQ(curl_socklen_t, CURL_SIZEOF_CURL_SOCKLEN_T)];
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/*
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* Verify at compile time that the size of curl_socklen_t as reported
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* by sizeof() is greater or equal than the one reported for int for
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* the current compilation.
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*/
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typedef char
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__curl_rule_05__
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[CurlchkszGE(curl_socklen_t, int)];
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/* ================================================================ */
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/* EXTERNALLY AND INTERNALLY VISIBLE DEFINITIONS */
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/* ================================================================ */
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/*
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* CURL_ISOCPP and CURL_OFF_T_C definitions are done here in order to allow
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* these to be visible and exported by the external libcurl interface API,
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* while also making them visible to the library internals, simply including
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* setup.h, without actually needing to include curl.h internally.
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* If some day this section would grow big enough, all this should be moved
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* to its own header file.
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*/
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/*
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* Figure out if we can use the ## preprocessor operator, which is supported
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* by ISO/ANSI C and C++. Some compilers support it without setting __STDC__
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* or __cplusplus so we need to carefully check for them too.
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*/
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#if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) || \
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defined(__HP_aCC) || defined(__BORLANDC__) || defined(__LCC__) || \
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defined(__POCC__) || defined(__SALFORDC__) || defined(__HIGHC__) || \
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defined(__ILEC400__)
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/* This compiler is believed to have an ISO compatible preprocessor */
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#define CURL_ISOCPP
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#else
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/* This compiler is believed NOT to have an ISO compatible preprocessor */
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#undef CURL_ISOCPP
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#endif
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/*
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* Macros for minimum-width signed and unsigned curl_off_t integer constants.
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*/
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#ifdef CURL_ISOCPP
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# define __CURL_OFF_T_C_HELPER2(Val,Suffix) Val ## Suffix
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#else
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# define __CURL_OFF_T_C_HELPER2(Val,Suffix) Val/**/Suffix
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#endif
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#define __CURL_OFF_T_C_HELPER1(Val,Suffix) __CURL_OFF_T_C_HELPER2(Val,Suffix)
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#define CURL_OFF_T_C(Val) __CURL_OFF_T_C_HELPER1(Val,CURL_SUFFIX_CURL_OFF_T)
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#define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HELPER1(Val,CURL_SUFFIX_CURL_OFF_TU)
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/*
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* Get rid of macros private to this header file.
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*/
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#undef CurlchkszEQ
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#undef CurlchkszGE
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/*
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* Get rid of macros not intended to exist beyond this point.
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*/
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#undef CURL_PULL_WS2TCPIP_H
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#undef CURL_PULL_SYS_TYPES_H
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#undef CURL_PULL_SYS_SOCKET_H
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#undef CURL_PULL_STDINT_H
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#undef CURL_PULL_INTTYPES_H
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#undef CURL_TYPEOF_CURL_SOCKLEN_T
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#undef CURL_TYPEOF_CURL_OFF_T
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#ifdef CURL_NO_OLDIES
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#undef CURL_FORMAT_OFF_T /* not required since 7.19.0 - obsoleted in 7.20.0 */
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#endif
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#endif /* __CURL_CURLRULES_H */
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