diff options
author | Yang Tse <yangsita@gmail.com> | 2008-08-12 03:00:24 +0000 |
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committer | Yang Tse <yangsita@gmail.com> | 2008-08-12 03:00:24 +0000 |
commit | 60a3773c50671079709f7711180358cb97476344 (patch) | |
tree | 503a90a15e4f352ee847a283c02619f10a2e75f7 /include | |
parent | e8e8177e9d7ac270c630b8e1e4041d08a2cc7fe2 (diff) | |
download | curl-60a3773c50671079709f7711180358cb97476344.tar.gz |
Added macros for minimum-width signed and unsigned curl_off_t integer
constants CURL_OFF_T_C and CURL_OFF_TU_C. The clever double helper macro
used internally to provide its functionality is thanks to Lars Nilsson.
Diffstat (limited to 'include')
-rw-r--r-- | include/curl/curl.h | 17 | ||||
-rw-r--r-- | include/curl/curlrules.h | 53 |
2 files changed, 53 insertions, 17 deletions
diff --git a/include/curl/curl.h b/include/curl/curl.h index 9dd54ff69..0aaad88fa 100644 --- a/include/curl/curl.h +++ b/include/curl/curl.h @@ -548,23 +548,6 @@ typedef enum { #ifdef CINIT #undef CINIT #endif -/* - * Figure out if we can use the ## 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. We don't use configure-checks - * for these since we want these headers to remain generic and working for all - * platforms. - */ -#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 #ifdef CURL_ISOCPP #define CINIT(name,type,number) CURLOPT_ ## name = CURLOPTTYPE_ ## type + number diff --git a/include/curl/curlrules.h b/include/curl/curlrules.h index 56499f9a2..cda33b21b 100644 --- a/include/curl/curlrules.h +++ b/include/curl/curlrules.h @@ -101,6 +101,16 @@ 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. */ @@ -129,6 +139,49 @@ typedef char __curl_rule_02__ [CurlchkszGE(curl_off_t, long)]; +/* ================================================================ */ +/* 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. */ |