On 05/19/11 06:07, Bruno Haible wrote: > Thanks, this patch fixed the errors on OSF/1 5.1 and reduced the errors on > Solaris 9 to only one:...
Yes, thanks, I've committed something which I hope fixes that; see below. > This part of the patch has no effect on HP-UX, IRIX, and neither on > OSF/1 and Solaris where the test already compiles fine. You could just as > well revert it. OK, done. > Analysis of the HP-UX cc bug:... > So I think, you will have to use ASSERT here instead of verify. Thanks, done. > Analysis of the IRIX cc bug: > So here apparently the problem is adding an unsigned value and -1. > The following change fixes this error for me: > > #define _GL_INT_SIGNED(e) (_GL_INT_CONVERT (e, -1) < 0) > #undef _GL_INT_SIGNED > #define _GL_INT_SIGNED(e) ((e) - (e) - 1 < 0) OK, thanks, I committed something a bit more general. > Other errors still remain; to be investigated in the next round. Thanks for all that checking! Here's what I committed: >From 55abd3179923a7ec9cde845b8c37fc678c31dd5c Mon Sep 17 00:00:00 2001 From: Paul Eggert <egg...@cs.ucla.edu> Date: Thu, 19 May 2011 19:15:19 -0700 Subject: [PATCH 1/3] intprops-tests: revert unsigned part of previous change * tests/test-intprops.c (UINT_MAX, ULONG_MAX, UINTMAX_MAX, U0, U1): Remove; they weren't actually needed. All uses of U0 and U1 removed, and other casts to 'unsigned int' reverted to 'u' suffixes. See <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>. --- ChangeLog | 8 ++++ tests/test-intprops.c | 102 +++++++++++++++++++++--------------------------- 2 files changed, 53 insertions(+), 57 deletions(-) diff --git a/ChangeLog b/ChangeLog index e9da004..5065b4b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2011-05-19 Paul Eggert <egg...@cs.ucla.edu> + + intprops-tests: revert unsigned part of previous change + * tests/test-intprops.c (UINT_MAX, ULONG_MAX, UINTMAX_MAX, U0, U1): + Remove; they weren't actually needed. All uses of U0 and U1 removed, + and other casts to 'unsigned int' reverted to 'u' suffixes. See + <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>. + 2011-05-19 Bruno Haible <br...@clisp.org> strerror_r: Work around strerror_r() change in Cygwin 1.7.8. diff --git a/tests/test-intprops.c b/tests/test-intprops.c index 9c2fe07..eec35dd 100644 --- a/tests/test-intprops.c +++ b/tests/test-intprops.c @@ -26,18 +26,6 @@ #include "macros.h" -/* Work around compiler bugs in HP-UX 11.23 cc, IRIX 6.5 cc, OSF/1 5.1 - cc, and Solaris 9 cc. See - <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. */ -#undef UINT_MAX -#undef ULONG_MAX -#undef UINTMAX_MAX -#define UINT_MAX ((unsigned int) -1) -#define ULONG_MAX ((unsigned long int) -1) -#define UINTMAX_MAX ((uintmax_t) -1) -#define U0 ((unsigned int) 0) -#define U1 ((unsigned int) 1) - /* Integer representation. */ verify (INT_MIN + INT_MAX < 0 ? (TYPE_TWOS_COMPLEMENT (int) @@ -112,23 +100,23 @@ verify (check_binop (ADD, INT_MAX, 1, INT_MIN, INT_MAX, true)); verify (check_binop (ADD, INT_MAX, -1, INT_MIN, INT_MAX, false)); verify (check_binop (ADD, INT_MIN, 1, INT_MIN, INT_MAX, false)); verify (check_binop (ADD, INT_MIN, -1, INT_MIN, INT_MAX, true)); -verify (check_binop (ADD, UINT_MAX, U1, U0, UINT_MAX, true)); -verify (check_binop (ADD, U0, U1, U0, UINT_MAX, false)); +verify (check_binop (ADD, UINT_MAX, 1u, 0u, UINT_MAX, true)); +verify (check_binop (ADD, 0u, 1u, 0u, UINT_MAX, false)); verify (check_binop (SUBTRACT, INT_MAX, 1, INT_MIN, INT_MAX, false)); verify (check_binop (SUBTRACT, INT_MAX, -1, INT_MIN, INT_MAX, true)); verify (check_binop (SUBTRACT, INT_MIN, 1, INT_MIN, INT_MAX, true)); verify (check_binop (SUBTRACT, INT_MIN, -1, INT_MIN, INT_MAX, false)); -verify (check_binop (SUBTRACT, UINT_MAX, U1, U0, UINT_MAX, false)); -verify (check_binop (SUBTRACT, U0, U1, U0, UINT_MAX, true)); +verify (check_binop (SUBTRACT, UINT_MAX, 1u, 0u, UINT_MAX, false)); +verify (check_binop (SUBTRACT, 0u, 1u, 0u, UINT_MAX, true)); verify (check_unop (NEGATE, INT_MIN, INT_MIN, INT_MAX, TYPE_TWOS_COMPLEMENT (int))); verify (check_unop (NEGATE, 0, INT_MIN, INT_MAX, false)); verify (check_unop (NEGATE, INT_MAX, INT_MIN, INT_MAX, false)); -verify (check_unop (NEGATE, U0, U0, UINT_MAX, false)); -verify (check_unop (NEGATE, U1, U0, UINT_MAX, true)); -verify (check_unop (NEGATE, UINT_MAX, U0, UINT_MAX, true)); +verify (check_unop (NEGATE, 0u, 0u, UINT_MAX, false)); +verify (check_unop (NEGATE, 1u, 0u, UINT_MAX, true)); +verify (check_unop (NEGATE, UINT_MAX, 0u, UINT_MAX, true)); verify (check_binop (MULTIPLY, INT_MAX, INT_MAX, INT_MIN, INT_MAX, true)); verify (check_binop (MULTIPLY, INT_MAX, INT_MIN, INT_MIN, INT_MAX, true)); @@ -143,17 +131,17 @@ verify (check_binop (DIVIDE, INT_MIN, -1, INT_MIN, INT_MAX, INT_NEGATE_OVERFLOW (INT_MIN))); verify (check_binop (DIVIDE, INT_MAX, 1, INT_MIN, INT_MAX, false)); verify (check_binop (DIVIDE, (unsigned int) INT_MIN, - -U1, U0, UINT_MAX, false)); + -1u, 0u, UINT_MAX, false)); verify (check_binop (REMAINDER, INT_MIN, -1, INT_MIN, INT_MAX, INT_NEGATE_OVERFLOW (INT_MIN))); verify (check_binop (REMAINDER, INT_MAX, 1, INT_MIN, INT_MAX, false)); verify (check_binop (REMAINDER, (unsigned int) INT_MIN, - -U1, U0, UINT_MAX, false)); + -1u, 0u, UINT_MAX, false)); -verify (check_binop (LEFT_SHIFT, UINT_MAX, 1, U0, UINT_MAX, true)); -verify (check_binop (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, U0, UINT_MAX, true)); -verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, U0, UINT_MAX, false)); +verify (check_binop (LEFT_SHIFT, UINT_MAX, 1, 0u, UINT_MAX, true)); +verify (check_binop (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, 0u, UINT_MAX, true)); +verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, 0u, UINT_MAX, false)); /* INT_<op>_OVERFLOW with mixed types. */ #define check_sum(a, b, overflow) \ @@ -161,51 +149,51 @@ verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, U0, UINT_MAX, false)); verify (INT_ADD_OVERFLOW (b, a) == (overflow)) check_sum (-1, LONG_MIN, true); check_sum (-1, UINT_MAX, false); -check_sum (- (long) 1, INT_MIN, INT_MIN == LONG_MIN); -check_sum (U0, -1, true); -check_sum (U0, 0, false); -check_sum (U0, 1, false); +check_sum (-1L, INT_MIN, INT_MIN == LONG_MIN); +check_sum (0u, -1, true); +check_sum (0u, 0, false); +check_sum (0u, 1, false); check_sum (1, LONG_MAX, true); check_sum (1, UINT_MAX, true); -check_sum ((long) 1, INT_MAX, INT_MAX == LONG_MAX); -check_sum (U1, INT_MAX, INT_MAX == UINT_MAX); -check_sum (U1, INT_MIN, true); +check_sum (1L, INT_MAX, INT_MAX == LONG_MAX); +check_sum (1u, INT_MAX, INT_MAX == UINT_MAX); +check_sum (1u, INT_MIN, true); -verify (! INT_SUBTRACT_OVERFLOW (INT_MAX, U1)); +verify (! INT_SUBTRACT_OVERFLOW (INT_MAX, 1u)); verify (! INT_SUBTRACT_OVERFLOW (UINT_MAX, 1)); -verify (! INT_SUBTRACT_OVERFLOW (U0, -1)); +verify (! INT_SUBTRACT_OVERFLOW (0u, -1)); verify (INT_SUBTRACT_OVERFLOW (UINT_MAX, -1)); -verify (INT_SUBTRACT_OVERFLOW (INT_MIN, U1)); -verify (INT_SUBTRACT_OVERFLOW (-1, U0)); +verify (INT_SUBTRACT_OVERFLOW (INT_MIN, 1u)); +verify (INT_SUBTRACT_OVERFLOW (-1, 0u)); #define check_product(a, b, overflow) \ verify (INT_MULTIPLY_OVERFLOW (a, b) == (overflow)); \ verify (INT_MULTIPLY_OVERFLOW (b, a) == (overflow)) -check_product (-1, U1, true); +check_product (-1, 1u, true); check_product (-1, INT_MIN, INT_NEGATE_OVERFLOW (INT_MIN)); check_product (-1, UINT_MAX, true); check_product (-12345, LONG_MAX / -12345 - 1, true); check_product (-12345, LONG_MAX / -12345, false); check_product (0, -1, false); check_product (0, 0, false); -check_product (0, U0, false); +check_product (0, 0u, false); check_product (0, 1, false); check_product (0, INT_MAX, false); check_product (0, INT_MIN, false); check_product (0, UINT_MAX, false); -check_product (U0, -1, false); -check_product (U0, 0, false); -check_product (U0, U0, false); -check_product (U0, 1, false); -check_product (U0, INT_MAX, false); -check_product (U0, INT_MIN, false); -check_product (U0, UINT_MAX, false); +check_product (0u, -1, false); +check_product (0u, 0, false); +check_product (0u, 0u, false); +check_product (0u, 1, false); +check_product (0u, INT_MAX, false); +check_product (0u, INT_MIN, false); +check_product (0u, UINT_MAX, false); check_product (1, INT_MAX, false); check_product (1, INT_MIN, false); check_product (1, UINT_MAX, false); -check_product (U1, INT_MIN, true); -check_product (U1, INT_MAX, UINT_MAX < INT_MAX); +check_product (1u, INT_MIN, true); +check_product (1u, INT_MAX, UINT_MAX < INT_MAX); check_product (INT_MAX, UINT_MAX, true); check_product (INT_MAX, ULONG_MAX, true); check_product (INT_MIN, LONG_MAX / INT_MIN - 1, true); @@ -213,19 +201,19 @@ check_product (INT_MIN, LONG_MAX / INT_MIN, false); check_product (INT_MIN, UINT_MAX, true); check_product (INT_MIN, ULONG_MAX, true); -verify (INT_DIVIDE_OVERFLOW (INT_MIN, - (long) 1) +verify (INT_DIVIDE_OVERFLOW (INT_MIN, -1L) == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN)); verify (! INT_DIVIDE_OVERFLOW (INT_MIN, UINT_MAX)); verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINTMAX_MAX)); verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINT_MAX)); -verify (INT_DIVIDE_OVERFLOW (-11, (unsigned int) 10)); -verify (INT_DIVIDE_OVERFLOW (-10, (unsigned int) 10)); -verify (! INT_DIVIDE_OVERFLOW (-9, (unsigned int) 10)); -verify (INT_DIVIDE_OVERFLOW ((unsigned int) 11, -10)); -verify (INT_DIVIDE_OVERFLOW ((unsigned int) 10, -10)); +verify (INT_DIVIDE_OVERFLOW (-11, 10u)); +verify (INT_DIVIDE_OVERFLOW (-10, 10u)); +verify (! INT_DIVIDE_OVERFLOW (-9, 10u)); +verify (INT_DIVIDE_OVERFLOW (11u, -10)); +verify (INT_DIVIDE_OVERFLOW (10u, -10)); verify (! INT_DIVIDE_OVERFLOW (9u, -10)); -verify (INT_REMAINDER_OVERFLOW (INT_MIN, - (long) 1) +verify (INT_REMAINDER_OVERFLOW (INT_MIN, -1L) == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN)); verify (INT_REMAINDER_OVERFLOW (-1, UINT_MAX)); verify (INT_REMAINDER_OVERFLOW ((intmax_t) -1, UINTMAX_MAX)); @@ -234,10 +222,10 @@ verify (INT_REMAINDER_OVERFLOW (INTMAX_MIN, UINT_MAX) && - (unsigned int) INTMAX_MIN % UINT_MAX != 0)); verify (INT_REMAINDER_OVERFLOW (INT_MIN, ULONG_MAX) == (INT_MIN % ULONG_MAX != 1)); -verify (! INT_REMAINDER_OVERFLOW (U1, -1)); -verify (! INT_REMAINDER_OVERFLOW (37 * (unsigned int) 39, -39)); -verify (INT_REMAINDER_OVERFLOW (37 * (unsigned int) 39 + 1, -39)); -verify (INT_REMAINDER_OVERFLOW (37 * (unsigned int) 39 - 1, -39)); +verify (! INT_REMAINDER_OVERFLOW (1u, -1)); +verify (! INT_REMAINDER_OVERFLOW (37*39u, -39)); +verify (INT_REMAINDER_OVERFLOW (37*39u + 1, -39)); +verify (INT_REMAINDER_OVERFLOW (37*39u - 1, -39)); verify (! INT_REMAINDER_OVERFLOW (LONG_MAX, -INT_MAX)); int -- 1.7.5.1 >From 92c71a1c8324e3f0776fd0edb3fc400b4d04a592 Mon Sep 17 00:00:00 2001 From: Paul Eggert <egg...@cs.ucla.edu> Date: Thu, 19 May 2011 19:16:04 -0700 Subject: [PATCH 2/3] intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1 See http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html * lib/intprops.h (_GL_INT_NEGATE_CONVERT): New macro. (_GL_INT_SIGNED, _GL_INT_MAXIMUM, _GL_DIVIDE_OVERFLOW): (_GL_REMAINDER_OVERFLOW): Use it. --- ChangeLog | 6 ++++++ lib/intprops.h | 12 ++++++++---- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/ChangeLog b/ChangeLog index 5065b4b..75f9b1d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,11 @@ 2011-05-19 Paul Eggert <egg...@cs.ucla.edu> + intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1 + See http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html + * lib/intprops.h (_GL_INT_NEGATE_CONVERT): New macro. + (_GL_INT_SIGNED, _GL_INT_MAXIMUM, _GL_DIVIDE_OVERFLOW): + (_GL_REMAINDER_OVERFLOW): Use it. + intprops-tests: revert unsigned part of previous change * tests/test-intprops.c (UINT_MAX, ULONG_MAX, UINTMAX_MAX, U0, U1): Remove; they weren't actually needed. All uses of U0 and U1 removed, diff --git a/lib/intprops.h b/lib/intprops.h index 9107a4b..bd9f040 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -27,6 +27,10 @@ E should not have side effects. */ #define _GL_INT_CONVERT(e, v) ((e) - (e) + (v)) +/* Act like _GL_INT_CONVERT (E, -V) but work around a bug in IRIX 6.5 cc; see + <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html>. */ +#define _GL_INT_NEGATE_CONVERT(e, v) ((e) - (e) - (v)) + /* The extra casts in the following macros work around compiler bugs, e.g., in Cray C 5.0.3.0. */ @@ -50,7 +54,7 @@ /* Return 1 if the integer expression E, after integer promotion, has a signed type. E should not have side effects. */ -#define _GL_INT_SIGNED(e) (_GL_INT_CONVERT (e, -1) < 0) +#define _GL_INT_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0) /* Minimum and maximum values for integer types and expressions. These @@ -79,7 +83,7 @@ #define _GL_INT_MAXIMUM(e) \ (_GL_INT_SIGNED (e) \ ? _GL_SIGNED_INT_MAXIMUM (e) \ - : _GL_INT_CONVERT (e, -1)) + : _GL_INT_NEGATE_CONVERT (e, 1)) #define _GL_SIGNED_INT_MAXIMUM(e) \ (((_GL_INT_CONVERT (e, 1) << (sizeof ((e) + 0) * CHAR_BIT - 2)) - 1) * 2 + 1) @@ -239,11 +243,11 @@ (((min) == 0 && (((a) < 0 && 0 < (b)) || ((b) < 0 && 0 < (a)))) \ || INT_MULTIPLY_RANGE_OVERFLOW (a, b, min, max)) #define _GL_DIVIDE_OVERFLOW(a, b, min, max) \ - ((min) < 0 ? (b) == _GL_INT_CONVERT (min, -1) && (a) < - (max) \ + ((min) < 0 ? (b) == _GL_INT_NEGATE_CONVERT (min, 1) && (a) < - (max) \ : (a) < 0 ? (b) <= (a) + (b) - 1 \ : (b) < 0 && (a) + (b) <= (a)) #define _GL_REMAINDER_OVERFLOW(a, b, min, max) \ - ((min) < 0 ? (b) == _GL_INT_CONVERT (min, -1) && (a) < - (max) \ + ((min) < 0 ? (b) == _GL_INT_NEGATE_CONVERT (min, 1) && (a) < - (max) \ : (a) < 0 ? (a) % (b) != ((max) - (b) + 1) % (b) \ : (b) < 0 && ! _GL_UNSIGNED_NEG_MULTIPLE (a, b, max)) -- 1.7.5.1 >From 1e0b92c990dfeb136cda606e2914e2d87b00bd74 Mon Sep 17 00:00:00 2001 From: Paul Eggert <egg...@cs.ucla.edu> Date: Thu, 19 May 2011 19:16:43 -0700 Subject: [PATCH 3/3] intprops-tests: work around HP-UX 11.23 cc bug with constants * tests/test-intprops.c (VERIFY): New macro. (main): Use it, instead of verify, to work around the compiler bug; see <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. --- ChangeLog | 5 + tests/test-intprops.c | 412 +++++++++++++++++++++++++------------------------ 2 files changed, 216 insertions(+), 201 deletions(-) diff --git a/ChangeLog b/ChangeLog index 75f9b1d..95af3d4 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,10 @@ 2011-05-19 Paul Eggert <egg...@cs.ucla.edu> + intprops-tests: work around HP-UX 11.23 cc bug with constants + * tests/test-intprops.c (VERIFY): New macro. + (main): Use it, instead of verify, to work around the compiler bug; see + <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. + intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1 See http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00406.html * lib/intprops.h (_GL_INT_NEGATE_CONVERT): New macro. diff --git a/tests/test-intprops.c b/tests/test-intprops.c index eec35dd..8fc582b 100644 --- a/tests/test-intprops.c +++ b/tests/test-intprops.c @@ -26,212 +26,22 @@ #include "macros.h" -/* Integer representation. */ -verify (INT_MIN + INT_MAX < 0 - ? (TYPE_TWOS_COMPLEMENT (int) - && ! TYPE_ONES_COMPLEMENT (int) && ! TYPE_SIGNED_MAGNITUDE (int)) - : (! TYPE_TWOS_COMPLEMENT (int) - && (TYPE_ONES_COMPLEMENT (int) || TYPE_SIGNED_MAGNITUDE (int)))); - -/* TYPE_SIGNED. */ -/* verify (! TYPE_SIGNED (bool)); */ /* not guaranteed by gnulib substitute */ -verify (TYPE_SIGNED (signed char)); -verify (! TYPE_SIGNED (unsigned char)); -verify (TYPE_SIGNED (short int)); -verify (! TYPE_SIGNED (unsigned short int)); -verify (TYPE_SIGNED (int)); -verify (! TYPE_SIGNED (unsigned int)); -verify (TYPE_SIGNED (long int)); -verify (! TYPE_SIGNED (unsigned long int)); -verify (TYPE_SIGNED (intmax_t)); -verify (! TYPE_SIGNED (uintmax_t)); - -/* TYPE_MINIMUM, TYPE_MAXIMUM. */ -verify (TYPE_MINIMUM (char) == CHAR_MIN); -verify (TYPE_MAXIMUM (char) == CHAR_MAX); -verify (TYPE_MINIMUM (unsigned char) == 0); -verify (TYPE_MAXIMUM (unsigned char) == UCHAR_MAX); -verify (TYPE_MINIMUM (signed char) == SCHAR_MIN); -verify (TYPE_MAXIMUM (signed char) == SCHAR_MAX); -verify (TYPE_MINIMUM (short int) == SHRT_MIN); -verify (TYPE_MAXIMUM (short int) == SHRT_MAX); -verify (TYPE_MINIMUM (unsigned short int) == 0); -verify (TYPE_MAXIMUM (unsigned short int) == USHRT_MAX); -verify (TYPE_MINIMUM (int) == INT_MIN); -verify (TYPE_MAXIMUM (int) == INT_MAX); -verify (TYPE_MINIMUM (unsigned int) == 0); -verify (TYPE_MAXIMUM (unsigned int) == UINT_MAX); -verify (TYPE_MINIMUM (long int) == LONG_MIN); -verify (TYPE_MAXIMUM (long int) == LONG_MAX); -verify (TYPE_MINIMUM (unsigned long int) == 0); -verify (TYPE_MAXIMUM (unsigned long int) == ULONG_MAX); -verify (TYPE_MINIMUM (intmax_t) == INTMAX_MIN); -verify (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX); -verify (TYPE_MINIMUM (uintmax_t) == 0); -verify (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX); - -/* INT_BITS_STRLEN_BOUND. */ -verify (INT_BITS_STRLEN_BOUND (1) == 1); -verify (INT_BITS_STRLEN_BOUND (2620) == 789); - -/* INT_STRLEN_BOUND, INT_BUFSIZE_BOUND. */ -#ifdef INT32_MAX /* POSIX guarantees int32_t; this ports to non-POSIX hosts */ -verify (INT_STRLEN_BOUND (int32_t) == sizeof ("-2147483648") - 1); -verify (INT_BUFSIZE_BOUND (int32_t) == sizeof ("-2147483648")); -#endif -#ifdef INT64_MAX -verify (INT_STRLEN_BOUND (int64_t) == sizeof ("-9223372036854775808") - 1); -verify (INT_BUFSIZE_BOUND (int64_t) == sizeof ("-9223372036854775808")); +/* VERIFY (X) uses a static assertion for compilers that are known to work, + and falls back on a dynamic assertion for other compilers. + These tests should be checkable via 'verify' rather than 'ASSERT', but + using 'verify' would run into a bug with HP-UX 11.23 cc; see + <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00401.html>. */ +#if __GNUC__ || __SUNPRO_C +# define VERIFY(x) do { verify (x); } while (0) +#else +# define VERIFY(x) ASSERT (x) #endif -/* All the INT_<op>_RANGE_OVERFLOW tests are equally valid as - INT_<op>_OVERFLOW tests, so define a single macro to do both. */ -#define check_binop(op, a, b, min, max, overflow) \ - (INT_##op##_RANGE_OVERFLOW (a, b, min, max) == (overflow) \ - && INT_##op##_OVERFLOW (a, b) == (overflow)) -#define check_unop(op, a, min, max, overflow) \ - (INT_##op##_RANGE_OVERFLOW (a, min, max) == (overflow) \ - && INT_##op##_OVERFLOW (a) == (overflow)) - -/* INT_<op>_RANGE_OVERFLOW, INT_<op>_OVERFLOW. */ -verify (INT_ADD_RANGE_OVERFLOW (INT_MAX, 1, INT_MIN, INT_MAX)); -verify (INT_ADD_OVERFLOW (INT_MAX, 1)); -verify (check_binop (ADD, INT_MAX, 1, INT_MIN, INT_MAX, true)); -verify (check_binop (ADD, INT_MAX, -1, INT_MIN, INT_MAX, false)); -verify (check_binop (ADD, INT_MIN, 1, INT_MIN, INT_MAX, false)); -verify (check_binop (ADD, INT_MIN, -1, INT_MIN, INT_MAX, true)); -verify (check_binop (ADD, UINT_MAX, 1u, 0u, UINT_MAX, true)); -verify (check_binop (ADD, 0u, 1u, 0u, UINT_MAX, false)); - -verify (check_binop (SUBTRACT, INT_MAX, 1, INT_MIN, INT_MAX, false)); -verify (check_binop (SUBTRACT, INT_MAX, -1, INT_MIN, INT_MAX, true)); -verify (check_binop (SUBTRACT, INT_MIN, 1, INT_MIN, INT_MAX, true)); -verify (check_binop (SUBTRACT, INT_MIN, -1, INT_MIN, INT_MAX, false)); -verify (check_binop (SUBTRACT, UINT_MAX, 1u, 0u, UINT_MAX, false)); -verify (check_binop (SUBTRACT, 0u, 1u, 0u, UINT_MAX, true)); - -verify (check_unop (NEGATE, INT_MIN, INT_MIN, INT_MAX, - TYPE_TWOS_COMPLEMENT (int))); -verify (check_unop (NEGATE, 0, INT_MIN, INT_MAX, false)); -verify (check_unop (NEGATE, INT_MAX, INT_MIN, INT_MAX, false)); -verify (check_unop (NEGATE, 0u, 0u, UINT_MAX, false)); -verify (check_unop (NEGATE, 1u, 0u, UINT_MAX, true)); -verify (check_unop (NEGATE, UINT_MAX, 0u, UINT_MAX, true)); - -verify (check_binop (MULTIPLY, INT_MAX, INT_MAX, INT_MIN, INT_MAX, true)); -verify (check_binop (MULTIPLY, INT_MAX, INT_MIN, INT_MIN, INT_MAX, true)); -verify (check_binop (MULTIPLY, INT_MIN, INT_MAX, INT_MIN, INT_MAX, true)); -verify (check_binop (MULTIPLY, INT_MIN, INT_MIN, INT_MIN, INT_MAX, true)); -verify (check_binop (MULTIPLY, -1, INT_MIN, INT_MIN, INT_MAX, - INT_NEGATE_OVERFLOW (INT_MIN))); -verify (check_binop (MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX, - LONG_MIN, LONG_MIN, false)); - -verify (check_binop (DIVIDE, INT_MIN, -1, INT_MIN, INT_MAX, - INT_NEGATE_OVERFLOW (INT_MIN))); -verify (check_binop (DIVIDE, INT_MAX, 1, INT_MIN, INT_MAX, false)); -verify (check_binop (DIVIDE, (unsigned int) INT_MIN, - -1u, 0u, UINT_MAX, false)); - -verify (check_binop (REMAINDER, INT_MIN, -1, INT_MIN, INT_MAX, - INT_NEGATE_OVERFLOW (INT_MIN))); -verify (check_binop (REMAINDER, INT_MAX, 1, INT_MIN, INT_MAX, false)); -verify (check_binop (REMAINDER, (unsigned int) INT_MIN, - -1u, 0u, UINT_MAX, false)); - -verify (check_binop (LEFT_SHIFT, UINT_MAX, 1, 0u, UINT_MAX, true)); -verify (check_binop (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, 0u, UINT_MAX, true)); -verify (check_binop (LEFT_SHIFT, UINT_MAX / 2, 1, 0u, UINT_MAX, false)); - -/* INT_<op>_OVERFLOW with mixed types. */ -#define check_sum(a, b, overflow) \ - verify (INT_ADD_OVERFLOW (a, b) == (overflow)); \ - verify (INT_ADD_OVERFLOW (b, a) == (overflow)) -check_sum (-1, LONG_MIN, true); -check_sum (-1, UINT_MAX, false); -check_sum (-1L, INT_MIN, INT_MIN == LONG_MIN); -check_sum (0u, -1, true); -check_sum (0u, 0, false); -check_sum (0u, 1, false); -check_sum (1, LONG_MAX, true); -check_sum (1, UINT_MAX, true); -check_sum (1L, INT_MAX, INT_MAX == LONG_MAX); -check_sum (1u, INT_MAX, INT_MAX == UINT_MAX); -check_sum (1u, INT_MIN, true); - -verify (! INT_SUBTRACT_OVERFLOW (INT_MAX, 1u)); -verify (! INT_SUBTRACT_OVERFLOW (UINT_MAX, 1)); -verify (! INT_SUBTRACT_OVERFLOW (0u, -1)); -verify (INT_SUBTRACT_OVERFLOW (UINT_MAX, -1)); -verify (INT_SUBTRACT_OVERFLOW (INT_MIN, 1u)); -verify (INT_SUBTRACT_OVERFLOW (-1, 0u)); - -#define check_product(a, b, overflow) \ - verify (INT_MULTIPLY_OVERFLOW (a, b) == (overflow)); \ - verify (INT_MULTIPLY_OVERFLOW (b, a) == (overflow)) - -check_product (-1, 1u, true); -check_product (-1, INT_MIN, INT_NEGATE_OVERFLOW (INT_MIN)); -check_product (-1, UINT_MAX, true); -check_product (-12345, LONG_MAX / -12345 - 1, true); -check_product (-12345, LONG_MAX / -12345, false); -check_product (0, -1, false); -check_product (0, 0, false); -check_product (0, 0u, false); -check_product (0, 1, false); -check_product (0, INT_MAX, false); -check_product (0, INT_MIN, false); -check_product (0, UINT_MAX, false); -check_product (0u, -1, false); -check_product (0u, 0, false); -check_product (0u, 0u, false); -check_product (0u, 1, false); -check_product (0u, INT_MAX, false); -check_product (0u, INT_MIN, false); -check_product (0u, UINT_MAX, false); -check_product (1, INT_MAX, false); -check_product (1, INT_MIN, false); -check_product (1, UINT_MAX, false); -check_product (1u, INT_MIN, true); -check_product (1u, INT_MAX, UINT_MAX < INT_MAX); -check_product (INT_MAX, UINT_MAX, true); -check_product (INT_MAX, ULONG_MAX, true); -check_product (INT_MIN, LONG_MAX / INT_MIN - 1, true); -check_product (INT_MIN, LONG_MAX / INT_MIN, false); -check_product (INT_MIN, UINT_MAX, true); -check_product (INT_MIN, ULONG_MAX, true); - -verify (INT_DIVIDE_OVERFLOW (INT_MIN, -1L) - == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN)); -verify (! INT_DIVIDE_OVERFLOW (INT_MIN, UINT_MAX)); -verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINTMAX_MAX)); -verify (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINT_MAX)); -verify (INT_DIVIDE_OVERFLOW (-11, 10u)); -verify (INT_DIVIDE_OVERFLOW (-10, 10u)); -verify (! INT_DIVIDE_OVERFLOW (-9, 10u)); -verify (INT_DIVIDE_OVERFLOW (11u, -10)); -verify (INT_DIVIDE_OVERFLOW (10u, -10)); -verify (! INT_DIVIDE_OVERFLOW (9u, -10)); - -verify (INT_REMAINDER_OVERFLOW (INT_MIN, -1L) - == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN)); -verify (INT_REMAINDER_OVERFLOW (-1, UINT_MAX)); -verify (INT_REMAINDER_OVERFLOW ((intmax_t) -1, UINTMAX_MAX)); -verify (INT_REMAINDER_OVERFLOW (INTMAX_MIN, UINT_MAX) - == (INTMAX_MAX < UINT_MAX - && - (unsigned int) INTMAX_MIN % UINT_MAX != 0)); -verify (INT_REMAINDER_OVERFLOW (INT_MIN, ULONG_MAX) - == (INT_MIN % ULONG_MAX != 1)); -verify (! INT_REMAINDER_OVERFLOW (1u, -1)); -verify (! INT_REMAINDER_OVERFLOW (37*39u, -39)); -verify (INT_REMAINDER_OVERFLOW (37*39u + 1, -39)); -verify (INT_REMAINDER_OVERFLOW (37*39u - 1, -39)); -verify (! INT_REMAINDER_OVERFLOW (LONG_MAX, -INT_MAX)); - int main (void) { - /* Test expressions that might not be integer constant expressions. */ + /* Use VERIFY for tests that must be integer constant expressions, + ASSERT otherwise. */ /* TYPE_IS_INTEGER. */ ASSERT (TYPE_IS_INTEGER (bool)); @@ -251,9 +61,209 @@ main (void) ASSERT (! TYPE_IS_INTEGER (long double)); /* TYPE_SIGNED. */ + /* VERIFY (! TYPE_SIGNED (bool)); // not guaranteed by gnulib substitute */ + VERIFY (TYPE_SIGNED (signed char)); + VERIFY (! TYPE_SIGNED (unsigned char)); + VERIFY (TYPE_SIGNED (short int)); + VERIFY (! TYPE_SIGNED (unsigned short int)); + VERIFY (TYPE_SIGNED (int)); + VERIFY (! TYPE_SIGNED (unsigned int)); + VERIFY (TYPE_SIGNED (long int)); + VERIFY (! TYPE_SIGNED (unsigned long int)); + VERIFY (TYPE_SIGNED (intmax_t)); + VERIFY (! TYPE_SIGNED (uintmax_t)); ASSERT (TYPE_SIGNED (float)); ASSERT (TYPE_SIGNED (double)); ASSERT (TYPE_SIGNED (long double)); + /* Integer representation. */ + VERIFY (INT_MIN + INT_MAX < 0 + ? (TYPE_TWOS_COMPLEMENT (int) + && ! TYPE_ONES_COMPLEMENT (int) && ! TYPE_SIGNED_MAGNITUDE (int)) + : (! TYPE_TWOS_COMPLEMENT (int) + && (TYPE_ONES_COMPLEMENT (int) || TYPE_SIGNED_MAGNITUDE (int)))); + + /* TYPE_MINIMUM, TYPE_MAXIMUM. */ + VERIFY (TYPE_MINIMUM (char) == CHAR_MIN); + VERIFY (TYPE_MAXIMUM (char) == CHAR_MAX); + VERIFY (TYPE_MINIMUM (unsigned char) == 0); + VERIFY (TYPE_MAXIMUM (unsigned char) == UCHAR_MAX); + VERIFY (TYPE_MINIMUM (signed char) == SCHAR_MIN); + VERIFY (TYPE_MAXIMUM (signed char) == SCHAR_MAX); + VERIFY (TYPE_MINIMUM (short int) == SHRT_MIN); + VERIFY (TYPE_MAXIMUM (short int) == SHRT_MAX); + VERIFY (TYPE_MINIMUM (unsigned short int) == 0); + VERIFY (TYPE_MAXIMUM (unsigned short int) == USHRT_MAX); + VERIFY (TYPE_MINIMUM (int) == INT_MIN); + VERIFY (TYPE_MAXIMUM (int) == INT_MAX); + VERIFY (TYPE_MINIMUM (unsigned int) == 0); + VERIFY (TYPE_MAXIMUM (unsigned int) == UINT_MAX); + VERIFY (TYPE_MINIMUM (long int) == LONG_MIN); + VERIFY (TYPE_MAXIMUM (long int) == LONG_MAX); + VERIFY (TYPE_MINIMUM (unsigned long int) == 0); + VERIFY (TYPE_MAXIMUM (unsigned long int) == ULONG_MAX); + VERIFY (TYPE_MINIMUM (intmax_t) == INTMAX_MIN); + VERIFY (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX); + VERIFY (TYPE_MINIMUM (uintmax_t) == 0); + VERIFY (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX); + + /* INT_BITS_STRLEN_BOUND. */ + VERIFY (INT_BITS_STRLEN_BOUND (1) == 1); + VERIFY (INT_BITS_STRLEN_BOUND (2620) == 789); + + /* INT_STRLEN_BOUND, INT_BUFSIZE_BOUND. */ + #ifdef INT32_MAX /* POSIX guarantees int32_t; this ports to non-POSIX. */ + VERIFY (INT_STRLEN_BOUND (int32_t) == sizeof ("-2147483648") - 1); + VERIFY (INT_BUFSIZE_BOUND (int32_t) == sizeof ("-2147483648")); + #endif + #ifdef INT64_MAX + VERIFY (INT_STRLEN_BOUND (int64_t) == sizeof ("-9223372036854775808") - 1); + VERIFY (INT_BUFSIZE_BOUND (int64_t) == sizeof ("-9223372036854775808")); + #endif + + /* All the INT_<op>_RANGE_OVERFLOW tests are equally valid as + INT_<op>_OVERFLOW tests, so define a single macro to do both. */ + #define CHECK_BINOP(op, a, b, min, max, overflow) \ + (INT_##op##_RANGE_OVERFLOW (a, b, min, max) == (overflow) \ + && INT_##op##_OVERFLOW (a, b) == (overflow)) + #define CHECK_UNOP(op, a, min, max, overflow) \ + (INT_##op##_RANGE_OVERFLOW (a, min, max) == (overflow) \ + && INT_##op##_OVERFLOW (a) == (overflow)) + + /* INT_<op>_RANGE_OVERFLOW, INT_<op>_OVERFLOW. */ + VERIFY (INT_ADD_RANGE_OVERFLOW (INT_MAX, 1, INT_MIN, INT_MAX)); + VERIFY (INT_ADD_OVERFLOW (INT_MAX, 1)); + VERIFY (CHECK_BINOP (ADD, INT_MAX, 1, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (ADD, INT_MAX, -1, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_BINOP (ADD, INT_MIN, 1, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_BINOP (ADD, INT_MIN, -1, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (ADD, UINT_MAX, 1u, 0u, UINT_MAX, true)); + VERIFY (CHECK_BINOP (ADD, 0u, 1u, 0u, UINT_MAX, false)); + + VERIFY (CHECK_BINOP (SUBTRACT, INT_MAX, 1, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_BINOP (SUBTRACT, INT_MAX, -1, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (SUBTRACT, INT_MIN, 1, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (SUBTRACT, INT_MIN, -1, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_BINOP (SUBTRACT, UINT_MAX, 1u, 0u, UINT_MAX, false)); + VERIFY (CHECK_BINOP (SUBTRACT, 0u, 1u, 0u, UINT_MAX, true)); + + VERIFY (CHECK_UNOP (NEGATE, INT_MIN, INT_MIN, INT_MAX, + TYPE_TWOS_COMPLEMENT (int))); + VERIFY (CHECK_UNOP (NEGATE, 0, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_UNOP (NEGATE, INT_MAX, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_UNOP (NEGATE, 0u, 0u, UINT_MAX, false)); + VERIFY (CHECK_UNOP (NEGATE, 1u, 0u, UINT_MAX, true)); + VERIFY (CHECK_UNOP (NEGATE, UINT_MAX, 0u, UINT_MAX, true)); + + VERIFY (CHECK_BINOP (MULTIPLY, INT_MAX, INT_MAX, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (MULTIPLY, INT_MAX, INT_MIN, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (MULTIPLY, INT_MIN, INT_MAX, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (MULTIPLY, INT_MIN, INT_MIN, INT_MIN, INT_MAX, true)); + VERIFY (CHECK_BINOP (MULTIPLY, -1, INT_MIN, INT_MIN, INT_MAX, + INT_NEGATE_OVERFLOW (INT_MIN))); + VERIFY (CHECK_BINOP (MULTIPLY, LONG_MIN / INT_MAX, (long int) INT_MAX, + LONG_MIN, LONG_MIN, false)); + + VERIFY (CHECK_BINOP (DIVIDE, INT_MIN, -1, INT_MIN, INT_MAX, + INT_NEGATE_OVERFLOW (INT_MIN))); + VERIFY (CHECK_BINOP (DIVIDE, INT_MAX, 1, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_BINOP (DIVIDE, (unsigned int) INT_MIN, + -1u, 0u, UINT_MAX, false)); + + VERIFY (CHECK_BINOP (REMAINDER, INT_MIN, -1, INT_MIN, INT_MAX, + INT_NEGATE_OVERFLOW (INT_MIN))); + VERIFY (CHECK_BINOP (REMAINDER, INT_MAX, 1, INT_MIN, INT_MAX, false)); + VERIFY (CHECK_BINOP (REMAINDER, (unsigned int) INT_MIN, + -1u, 0u, UINT_MAX, false)); + + VERIFY (CHECK_BINOP (LEFT_SHIFT, UINT_MAX, 1, 0u, UINT_MAX, true)); + VERIFY (CHECK_BINOP (LEFT_SHIFT, UINT_MAX / 2 + 1, 1, 0u, UINT_MAX, true)); + VERIFY (CHECK_BINOP (LEFT_SHIFT, UINT_MAX / 2, 1, 0u, UINT_MAX, false)); + + /* INT_<op>_OVERFLOW with mixed types. */ + #define CHECK_SUM(a, b, overflow) \ + VERIFY (INT_ADD_OVERFLOW (a, b) == (overflow)); \ + VERIFY (INT_ADD_OVERFLOW (b, a) == (overflow)) + CHECK_SUM (-1, LONG_MIN, true); + CHECK_SUM (-1, UINT_MAX, false); + CHECK_SUM (-1L, INT_MIN, INT_MIN == LONG_MIN); + CHECK_SUM (0u, -1, true); + CHECK_SUM (0u, 0, false); + CHECK_SUM (0u, 1, false); + CHECK_SUM (1, LONG_MAX, true); + CHECK_SUM (1, UINT_MAX, true); + CHECK_SUM (1L, INT_MAX, INT_MAX == LONG_MAX); + CHECK_SUM (1u, INT_MAX, INT_MAX == UINT_MAX); + CHECK_SUM (1u, INT_MIN, true); + + VERIFY (! INT_SUBTRACT_OVERFLOW (INT_MAX, 1u)); + VERIFY (! INT_SUBTRACT_OVERFLOW (UINT_MAX, 1)); + VERIFY (! INT_SUBTRACT_OVERFLOW (0u, -1)); + VERIFY (INT_SUBTRACT_OVERFLOW (UINT_MAX, -1)); + VERIFY (INT_SUBTRACT_OVERFLOW (INT_MIN, 1u)); + VERIFY (INT_SUBTRACT_OVERFLOW (-1, 0u)); + + #define CHECK_PRODUCT(a, b, overflow) \ + VERIFY (INT_MULTIPLY_OVERFLOW (a, b) == (overflow)); \ + VERIFY (INT_MULTIPLY_OVERFLOW (b, a) == (overflow)) + + CHECK_PRODUCT (-1, 1u, true); + CHECK_PRODUCT (-1, INT_MIN, INT_NEGATE_OVERFLOW (INT_MIN)); + CHECK_PRODUCT (-1, UINT_MAX, true); + CHECK_PRODUCT (-12345, LONG_MAX / -12345 - 1, true); + CHECK_PRODUCT (-12345, LONG_MAX / -12345, false); + CHECK_PRODUCT (0, -1, false); + CHECK_PRODUCT (0, 0, false); + CHECK_PRODUCT (0, 0u, false); + CHECK_PRODUCT (0, 1, false); + CHECK_PRODUCT (0, INT_MAX, false); + CHECK_PRODUCT (0, INT_MIN, false); + CHECK_PRODUCT (0, UINT_MAX, false); + CHECK_PRODUCT (0u, -1, false); + CHECK_PRODUCT (0u, 0, false); + CHECK_PRODUCT (0u, 0u, false); + CHECK_PRODUCT (0u, 1, false); + CHECK_PRODUCT (0u, INT_MAX, false); + CHECK_PRODUCT (0u, INT_MIN, false); + CHECK_PRODUCT (0u, UINT_MAX, false); + CHECK_PRODUCT (1, INT_MAX, false); + CHECK_PRODUCT (1, INT_MIN, false); + CHECK_PRODUCT (1, UINT_MAX, false); + CHECK_PRODUCT (1u, INT_MIN, true); + CHECK_PRODUCT (1u, INT_MAX, UINT_MAX < INT_MAX); + CHECK_PRODUCT (INT_MAX, UINT_MAX, true); + CHECK_PRODUCT (INT_MAX, ULONG_MAX, true); + CHECK_PRODUCT (INT_MIN, LONG_MAX / INT_MIN - 1, true); + CHECK_PRODUCT (INT_MIN, LONG_MAX / INT_MIN, false); + CHECK_PRODUCT (INT_MIN, UINT_MAX, true); + CHECK_PRODUCT (INT_MIN, ULONG_MAX, true); + + VERIFY (INT_DIVIDE_OVERFLOW (INT_MIN, -1L) + == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN)); + VERIFY (! INT_DIVIDE_OVERFLOW (INT_MIN, UINT_MAX)); + VERIFY (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINTMAX_MAX)); + VERIFY (! INT_DIVIDE_OVERFLOW (INTMAX_MIN, UINT_MAX)); + VERIFY (INT_DIVIDE_OVERFLOW (-11, 10u)); + VERIFY (INT_DIVIDE_OVERFLOW (-10, 10u)); + VERIFY (! INT_DIVIDE_OVERFLOW (-9, 10u)); + VERIFY (INT_DIVIDE_OVERFLOW (11u, -10)); + VERIFY (INT_DIVIDE_OVERFLOW (10u, -10)); + VERIFY (! INT_DIVIDE_OVERFLOW (9u, -10)); + + VERIFY (INT_REMAINDER_OVERFLOW (INT_MIN, -1L) + == (TYPE_TWOS_COMPLEMENT (long int) && INT_MIN == LONG_MIN)); + VERIFY (INT_REMAINDER_OVERFLOW (-1, UINT_MAX)); + VERIFY (INT_REMAINDER_OVERFLOW ((intmax_t) -1, UINTMAX_MAX)); + VERIFY (INT_REMAINDER_OVERFLOW (INTMAX_MIN, UINT_MAX) + == (INTMAX_MAX < UINT_MAX + && - (unsigned int) INTMAX_MIN % UINT_MAX != 0)); + VERIFY (INT_REMAINDER_OVERFLOW (INT_MIN, ULONG_MAX) + == (INT_MIN % ULONG_MAX != 1)); + VERIFY (! INT_REMAINDER_OVERFLOW (1u, -1)); + VERIFY (! INT_REMAINDER_OVERFLOW (37*39u, -39)); + VERIFY (INT_REMAINDER_OVERFLOW (37*39u + 1, -39)); + VERIFY (INT_REMAINDER_OVERFLOW (37*39u - 1, -39)); + VERIFY (! INT_REMAINDER_OVERFLOW (LONG_MAX, -INT_MAX)); + return 0; } -- 1.7.5.1
