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curlrules.h
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#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 */