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-rw-r--r--src/mpfr-impl.h96
1 files changed, 77 insertions, 19 deletions
diff --git a/src/mpfr-impl.h b/src/mpfr-impl.h
index 00a38bad2..ea05ef2d8 100644
--- a/src/mpfr-impl.h
+++ b/src/mpfr-impl.h
@@ -235,6 +235,10 @@ typedef __gmp_const mp_limb_t *mpfr_limb_srcptr;
************* Global Internal Variables **************
******************************************************/
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
/* Cache struct */
struct __gmpfr_cache_s {
mpfr_t x;
@@ -244,32 +248,86 @@ struct __gmpfr_cache_s {
typedef struct __gmpfr_cache_s mpfr_cache_t[1];
typedef struct __gmpfr_cache_s *mpfr_cache_ptr;
-#if defined (__cplusplus)
-extern "C" {
+#if __GMP_LIBGMP_DLL
+# define MPFR_WIN_THREAD_SAFE_DLL 1
#endif
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR unsigned int __gmpfr_flags;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_exp_t __gmpfr_emin;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_exp_t __gmpfr_emax;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_prec_t __gmpfr_default_fp_bit_precision;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_rnd_t __gmpfr_default_rounding_mode;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_euler;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_catalan;
+/* Detect some possible inconsistencies under Unix. */
+#if defined(__unix__)
+# if defined(_WIN32)
+# error "Both __unix__ and _WIN32 are defined"
+# endif
+# if __GMP_LIBGMP_DLL
+# error "__unix__ is defined and __GMP_LIBGMP_DLL is true"
+# endif
+# if defined(MPFR_WIN_THREAD_SAFE_DLL)
+# error "Both __unix__ and MPFR_WIN_THREAD_SAFE_DLL are defined"
+# endif
+#endif
-#ifndef MPFR_USE_LOGGING
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_pi;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_log2;
-#else
+#if defined(__MPFR_WITHIN_MPFR) || !defined(MPFR_WIN_THREAD_SAFE_DLL)
+extern MPFR_THREAD_ATTR unsigned int __gmpfr_flags;
+extern MPFR_THREAD_ATTR mpfr_exp_t __gmpfr_emin;
+extern MPFR_THREAD_ATTR mpfr_exp_t __gmpfr_emax;
+extern MPFR_THREAD_ATTR mpfr_prec_t __gmpfr_default_fp_bit_precision;
+extern MPFR_THREAD_ATTR mpfr_rnd_t __gmpfr_default_rounding_mode;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_euler;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_catalan;
+# ifndef MPFR_USE_LOGGING
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_pi;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_cache_const_log2;
+# else
/* Two constants are used by the logging functions (via mpfr_fprintf,
then mpfr_log, for the base conversion): pi and log(2). Since the
mpfr_cache function isn't re-entrant when working on the same cache,
we need to define two caches for each constant. */
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_normal_pi;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_normal_log2;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_logging_pi;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_logging_log2;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_ptr __gmpfr_cache_const_pi;
-__MPFR_DECLSPEC extern MPFR_THREAD_ATTR mpfr_cache_ptr __gmpfr_cache_const_log2;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_normal_pi;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_normal_log2;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_logging_pi;
+extern MPFR_THREAD_ATTR mpfr_cache_t __gmpfr_logging_log2;
+extern MPFR_THREAD_ATTR mpfr_cache_ptr __gmpfr_cache_const_pi;
+extern MPFR_THREAD_ATTR mpfr_cache_ptr __gmpfr_cache_const_log2;
+# endif
+#endif
+
+#ifdef MPFR_WIN_THREAD_SAFE_DLL
+__MPFR_DECLSPEC unsigned int * __gmpfr_flags_f();
+__MPFR_DECLSPEC mpfr_exp_t * __gmpfr_emin_f();
+__MPFR_DECLSPEC mpfr_exp_t * __gmpfr_emax_f();
+__MPFR_DECLSPEC mpfr_prec_t * __gmpfr_default_fp_bit_precision_f();
+__MPFR_DECLSPEC mpfr_rnd_t * __gmpfr_default_rounding_mode_f();
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_cache_const_euler_f();
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_cache_const_catalan_f();
+# ifndef MPFR_USE_LOGGING
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_cache_const_pi_f();
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_cache_const_log2_f();
+# else
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_normal_pi_f();
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_normal_log2_f();
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_logging_pi_f();
+__MPFR_DECLSPEC mpfr_cache_t * __gmpfr_logging_log2_f();
+__MPFR_DECLSPEC mpfr_cache_ptr * __gmpfr_cache_const_pi_f();
+__MPFR_DECLSPEC mpfr_cache_ptr * __gmpfr_cache_const_log2_f();
+# endif
+# ifndef __MPFR_WITHIN_MPFR
+# define __gmpfr_flags (*__gmpfr_flags_f())
+# define __gmpfr_emin (*__gmpfr_emin_f())
+# define __gmpfr_emax (*__gmpfr_emax_f())
+# define __gmpfr_default_fp_bit_precision (*__gmpfr_default_fp_bit_precision_f())
+# define __gmpfr_default_rounding_mode (*__gmpfr_default_rounding_mode_f())
+# define __gmpfr_cache_const_euler (*__gmpfr_cache_const_euler_f())
+# define __gmpfr_cache_const_catalan (*__gmpfr_cache_const_catalan_f())
+# ifndef MPFR_USE_LOGGING
+# define __gmpfr_cache_const_pi (*__gmpfr_cache_const_pi_f())
+# define __gmpfr_cache_const_log2 (*__gmpfr_cache_const_log2_f())
+# else
+# define __gmpfr_normal_pi (*__gmpfr_normal_pi_f())
+# define __gmpfr_logging_pi (*__gmpfr_logging_pi_f())
+# define __gmpfr_logging_log2 (*__gmpfr_logging_log2_f())
+# define __gmpfr_cache_const_pi (*__gmpfr_cache_const_pi_f())
+# define __gmpfr_cache_const_log2 (*__gmpfr_cache_const_log2_f())
+# endif
+# endif
#endif
#define BASE_MAX 62