diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/strtoofft.h | 72 |
1 files changed, 31 insertions, 41 deletions
diff --git a/lib/strtoofft.h b/lib/strtoofft.h index a63dfcbb4..a9ccca017 100644 --- a/lib/strtoofft.h +++ b/lib/strtoofft.h @@ -7,7 +7,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2008, 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 @@ -23,52 +23,42 @@ * $Id$ ***************************************************************************/ -/* - * CAUTION: this header is designed to work when included by the app-side - * as well as the library. Do not mix with library internals! - */ - #include "setup.h" -#include <stddef.h> -#include <curl/curl.h> /* for the curl_off_t type */ -/* Determine what type of file offset conversion handling we wish to use. For - * systems with a 32-bit curl_off_t type, we should use strtol. For systems - * with a 64-bit curl_off_t type, we should use strtoll if it exists, and if - * not, should try to emulate its functionality. At any rate, we define - * 'strtoofft' such that it can be used to work with curl_off_t's regardless. +/* + * Determine which string to integral data type conversion function we use + * to implement string conversion to our curl_off_t integral data type. + * + * Notice that curl_off_t might be 64 or 32 bit wide, and that it might use + * an undelying data type which might be 'long', 'int64_t', 'long long' or + * '__int64' and more remotely other data types. + * + * On systems where the size of curl_off_t is greater than the size of 'long' + * the conversion funtion to use is strtoll() if it is available, otherwise, + * we emulate its functionality with our own clone. + * + * On systems where the size of curl_off_t is smaller or equal than the size + * of 'long' the conversion funtion to use is strtol(). */ -#if (CURL_SIZEOF_CURL_OFF_T > 4) && (SIZEOF_LONG < 8) -#ifdef HAVE_STRTOLL -#define curlx_strtoofft strtoll -#else /* HAVE_STRTOLL */ - -/* For MSVC7 we can use _strtoi64() which seems to be a strtoll() clone */ -#if defined(_MSC_VER) && (_MSC_VER >= 1300) -_CRTIMP __int64 __cdecl _strtoi64(const char *, char **, int); /* in <crt/stdlib.h> */ -#define curlx_strtoofft _strtoi64 -#else /* MSVC7 or later */ -curl_off_t curlx_strtoll(const char *nptr, char **endptr, int base); -#define curlx_strtoofft curlx_strtoll -#define NEED_CURL_STRTOLL -#endif /* MSVC7 or later */ -#endif /* HAVE_STRTOLL */ -#else /* (CURL_SIZEOF_CURL_OFF_T > 4) && (SIZEOF_LONG < 8) */ -/* simply use strtol() to get numbers, either 32 or 64 bit */ -#define curlx_strtoofft strtol -#endif - -#if defined(_MSC_VER) || defined(__WATCOMC__) -#define CURL_LLONG_MIN 0x8000000000000000i64 -#define CURL_LLONG_MAX 0x7FFFFFFFFFFFFFFFi64 -#elif defined(HAVE_LL) -#define CURL_LLONG_MIN 0x8000000000000000LL -#define CURL_LLONG_MAX 0x7FFFFFFFFFFFFFFFLL +#if (CURL_SIZEOF_CURL_OFF_T > SIZEOF_LONG) +# ifdef HAVE_STRTOLL +# define curlx_strtoofft strtoll +# else +# if defined(_MSC_VER) && (_MSC_VER >= 1300) + _CRTIMP __int64 __cdecl _strtoi64(const char *, char **, int); +# define curlx_strtoofft _strtoi64 +# else + curl_off_t curlx_strtoll(const char *nptr, char **endptr, int base); +# define curlx_strtoofft curlx_strtoll +# endif +# endif #else -#define CURL_LLONG_MIN 0x8000000000000000L -#define CURL_LLONG_MAX 0x7FFFFFFFFFFFFFFFL +# define curlx_strtoofft strtol #endif +#define CURL_LLONG_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF) +#define CURL_LLONG_MIN CURL_OFF_T_C(0x8000000000000000) + #endif |