| #ifndef __CURL_CURLRULES_H |
| #define __CURL_CURLRULES_H |
| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2009, Daniel Stenberg, <[email protected]>, 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. |
| * |
| * $Id: curlrules.h,v 1.7 2009-10-27 16:56:20 yangtse Exp $ |
| ***************************************************************************/ |
| |
| /* ================================================================ */ |
| /* 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 |
| * 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. |
| */ |
| |
| #ifdef CURL_ISOCPP |
| # define __CURL_OFF_T_C_HELPER2(Val,Suffix) Val ## Suffix |
| #else |
| # define __CURL_OFF_T_C_HELPER2(Val,Suffix) Val/**/Suffix |
| #endif |
| #define __CURL_OFF_T_C_HELPER1(Val,Suffix) __CURL_OFF_T_C_HELPER2(Val,Suffix) |
| #define CURL_OFF_T_C(Val) __CURL_OFF_T_C_HELPER1(Val,CURL_SUFFIX_CURL_OFF_T) |
| #define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HELPER1(Val,CURL_SUFFIX_CURL_OFF_TU) |
| |
| /* |
| * 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_STDINT_H |
| #undef CURL_PULL_INTTYPES_H |
| |
| #undef CURL_TYPEOF_CURL_SOCKLEN_T |
| #undef CURL_TYPEOF_CURL_OFF_T |
| |
| #endif /* __CURL_CURLRULES_H */ |
