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252 lines
8.3 KiB
252 lines
8.3 KiB
#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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