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diff -Naurd mpfr-3.0.0-a/PATCHES mpfr-3.0.0-b/PATCHES
--- mpfr-3.0.0-a/PATCHES 2010-09-07 08:44:01.000000000 +0000
+++ mpfr-3.0.0-b/PATCHES 2010-09-07 08:48:46.000000000 +0000
@@ -0,0 +1 @@
+mpfr_cmp/set_ui/si
diff -Naurd mpfr-3.0.0-a/VERSION mpfr-3.0.0-b/VERSION
--- mpfr-3.0.0-a/VERSION 2010-07-10 00:11:53.000000000 +0000
+++ mpfr-3.0.0-b/VERSION 2010-09-07 08:46:06.000000000 +0000
@@ -1 +1 @@
-3.0.0-p3
+3.0.0-p4
diff -Naurd mpfr-3.0.0-a/mpfr.h mpfr-3.0.0-b/mpfr.h
--- mpfr-3.0.0-a/mpfr.h 2010-07-10 00:11:53.000000000 +0000
+++ mpfr-3.0.0-b/mpfr.h 2010-09-07 08:46:06.000000000 +0000
@@ -27,7 +27,7 @@
#define MPFR_VERSION_MAJOR 3
#define MPFR_VERSION_MINOR 0
#define MPFR_VERSION_PATCHLEVEL 0
-#define MPFR_VERSION_STRING "3.0.0-p3"
+#define MPFR_VERSION_STRING "3.0.0-p4"
/* Macros dealing with MPFR VERSION */
#define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
@@ -798,35 +798,45 @@
anyway. Checking with other ICC versions is needed. Possibly detect
whether warnings are produced or not with a configure test.
+ Remove C++ too, since it complains too much. */
+/* Added casts to improve robustness in case of undefined behavior and
+ compiler extensions based on UB (in particular -fwrapv). MPFR doesn't
+ use such extensions, but these macros will be used by 3rd-party code,
+ where such extensions may be required.
+ Moreover casts to unsigned long have been added to avoid warnings in
+ programs that use MPFR and are compiled with -Wconversion; such casts
+ are OK since if X is a constant expression, then (unsigned long) X is
+ also a constant expression, so that the optimizations still work. */
#if defined (__GNUC__) && !defined(__ICC) && !defined(__cplusplus)
#if (__GNUC__ >= 2)
#undef mpfr_cmp_ui
-/* We use the fact that mpfr_sgn on NaN sets the erange flag and returns 0. */
-#define mpfr_cmp_ui(_f,_u) \
- (__builtin_constant_p (_u) && (_u) == 0 ? \
- mpfr_sgn (_f) : \
- mpfr_cmp_ui_2exp ((_f),(_u),0))
+/* We use the fact that mpfr_sgn on NaN sets the erange flag and returns 0.
+ But warning! mpfr_sgn is specified as a macro in the API, thus the macro
+ mustn't be used if side effects are possible, like here. */
+#define mpfr_cmp_ui(_f,_u) \
+ (__builtin_constant_p (_u) && (unsigned long) (_u) == 0 ? \
+ (mpfr_sgn) (_f) : \
+ mpfr_cmp_ui_2exp ((_f), (unsigned long) (_u), 0))
#undef mpfr_cmp_si
-#define mpfr_cmp_si(_f,_s) \
- (__builtin_constant_p (_s) && (_s) >= 0 ? \
- mpfr_cmp_ui ((_f), (_s)) : \
- mpfr_cmp_si_2exp ((_f), (_s), 0))
+#define mpfr_cmp_si(_f,_s) \
+ (__builtin_constant_p (_s) && (long) (_s) >= 0 ? \
+ mpfr_cmp_ui ((_f), (unsigned long) (long) (_s)) : \
+ mpfr_cmp_si_2exp ((_f), (long) (_s), 0))
#if __GNUC__ > 2 || __GNUC_MINOR__ >= 95
#undef mpfr_set_ui
-#define mpfr_set_ui(_f,_u,_r) \
- (__builtin_constant_p (_u) && (_u) == 0 ? \
- __extension__ ({ \
- mpfr_ptr _p = (_f); \
- _p->_mpfr_sign = 1; \
- _p->_mpfr_exp = __MPFR_EXP_ZERO; \
- (void) (_r); 0; }) : \
- mpfr_set_ui_2exp ((_f), (_u), 0, (_r)))
+#define mpfr_set_ui(_f,_u,_r) \
+ (__builtin_constant_p (_u) && (unsigned long) (_u) == 0 ? \
+ __extension__ ({ \
+ mpfr_ptr _p = (_f); \
+ _p->_mpfr_sign = 1; \
+ _p->_mpfr_exp = __MPFR_EXP_ZERO; \
+ (void) (_r); 0; }) : \
+ mpfr_set_ui_2exp ((_f), (unsigned long) (_u), 0, (_r)))
#endif
#undef mpfr_set_si
-#define mpfr_set_si(_f,_s,_r) \
- (__builtin_constant_p (_s) && (_s) >= 0 ? \
- mpfr_set_ui ((_f), (_s), (_r)) : \
- mpfr_set_si_2exp ((_f), (_s), 0, (_r)))
+#define mpfr_set_si(_f,_s,_r) \
+ (__builtin_constant_p (_s) && (long) (_s) >= 0 ? \
+ mpfr_set_ui ((_f), (unsigned long) (long) (_s), (_r)) : \
+ mpfr_set_si_2exp ((_f), (long) (_s), 0, (_r)))
#endif
#endif
diff -Naurd mpfr-3.0.0-a/tests/tcmp_ui.c mpfr-3.0.0-b/tests/tcmp_ui.c
--- mpfr-3.0.0-a/tests/tcmp_ui.c 2010-06-10 11:00:13.000000000 +0000
+++ mpfr-3.0.0-b/tests/tcmp_ui.c 2010-09-07 08:45:12.000000000 +0000
@@ -88,6 +88,126 @@
mpfr_clear (x);
}
+/* Since mpfr_cmp_ui and mpfr_cmp_si are also implemented by a macro
+ with __builtin_constant_p for GCC, check that side effects are
+ handled correctly. */
+static void
+check_macros (void)
+{
+ mpfr_t x;
+ int c;
+
+ mpfr_init2 (x, 32);
+
+ c = 0;
+ mpfr_set_ui (x, 17, MPFR_RNDN);
+ if (mpfr_cmp_ui (x, 17) != 0)
+ {
+ printf ("Error 1 on mpfr_cmp_ui(x,17) in check_macros\n");
+ exit (1);
+ }
+ if (mpfr_cmp_ui (x, (c++, 17)) != 0)
+ {
+ printf ("Error 2 on mpfr_cmp_ui(x,17) in check_macros\n");
+ exit (1);
+ }
+ if (c != 1)
+ {
+ printf ("Error 3 on mpfr_cmp_ui(x,17) in check_macros\n"
+ "(c = %d instead of 1)\n", c);
+ exit (1);
+ }
+ if (mpfr_cmp_si (x, 17) != 0)
+ {
+ printf ("Error 1 on mpfr_cmp_si(x,17) in check_macros\n");
+ exit (1);
+ }
+ if (mpfr_cmp_si (x, (c++, 17)) != 0)
+ {
+ printf ("Error 2 on mpfr_cmp_si(x,17) in check_macros\n");
+ exit (1);
+ }
+ if (c != 2)
+ {
+ printf ("Error 3 on mpfr_cmp_si(x,17) in check_macros\n"
+ "(c = %d instead of 2)\n", c);
+ exit (1);
+ }
+
+ c = 0;
+ mpfr_set_ui (x, 0, MPFR_RNDN);
+ if (mpfr_cmp_ui (x, 0) != 0)
+ {
+ printf ("Error 1 on mpfr_cmp_ui(x,0) in check_macros\n");
+ exit (1);
+ }
+ if (mpfr_cmp_ui (x, (c++, 0)) != 0)
+ {
+ printf ("Error 2 on mpfr_cmp_ui(x,0) in check_macros\n");
+ exit (1);
+ }
+ if (c != 1)
+ {
+ printf ("Error 3 on mpfr_cmp_ui(x,0) in check_macros\n"
+ "(c = %d instead of 1)\n", c);
+ exit (1);
+ }
+ if (mpfr_cmp_si (x, 0) != 0)
+ {
+ printf ("Error 1 on mpfr_cmp_si(x,0) in check_macros\n");
+ exit (1);
+ }
+ if (mpfr_cmp_si (x, (c++, 0)) != 0)
+ {
+ printf ("Error 2 on mpfr_cmp_si(x,0) in check_macros\n");
+ exit (1);
+ }
+ if (c != 2)
+ {
+ printf ("Error 3 on mpfr_cmp_si(x,0) in check_macros\n"
+ "(c = %d instead of 2)\n", c);
+ exit (1);
+ }
+
+ mpfr_clear (x);
+}
+
+/* Bug in r7114 */
+static void
+test_macros (void)
+{
+ mpfr_t x[3];
+ mpfr_ptr p;
+
+ mpfr_inits (x[0], x[1], x[2], (mpfr_ptr) 0);
+ mpfr_set_ui (x[0], 0, MPFR_RNDN);
+ p = x[0];
+ if (mpfr_cmp_ui (p++, 0) != 0)
+ {
+ printf ("Error in mpfr_cmp_ui macro: result should be 0.\n");
+ exit (1);
+ }
+ if (p != x[1])
+ {
+ printf ("Error in mpfr_cmp_ui macro: p - x[0] = %d (expecting 1)\n",
+ (int) (p - x[0]));
+ exit (1);
+ }
+ p = x[0];
+ if (mpfr_cmp_si (p++, 0) != 0)
+ {
+ printf ("Error in mpfr_cmp_si macro: result should be 0.\n");
+ exit (1);
+ }
+ if (p != x[1])
+ {
+ printf ("Error in mpfr_cmp_si macro: p - x[0] = %d (expecting 1)\n",
+ (int) (p - x[0]));
+ exit (1);
+ }
+ mpfr_clears (x[0], x[1], x[2], (mpfr_ptr) 0);
+}
+
int
main (void)
{
@@ -216,6 +336,8 @@
mpfr_clear (x);
check_nan ();
+ check_macros ();
+ test_macros ();
tests_end_mpfr ();
return 0;
diff -Naurd mpfr-3.0.0-a/version.c mpfr-3.0.0-b/version.c
--- mpfr-3.0.0-a/version.c 2010-07-10 00:11:53.000000000 +0000
+++ mpfr-3.0.0-b/version.c 2010-09-07 08:46:06.000000000 +0000
@@ -25,5 +25,5 @@
const char *
mpfr_get_version (void)
{
- return "3.0.0-p3";
+ return "3.0.0-p4";
}
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