summaryrefslogtreecommitdiff
path: root/gcc/testsuite/c-c++-common/dfp/convert-int-max.c
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/c-c++-common/dfp/convert-int-max.c
downloadcbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2
cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository.
Diffstat (limited to 'gcc/testsuite/c-c++-common/dfp/convert-int-max.c')
-rw-r--r--gcc/testsuite/c-c++-common/dfp/convert-int-max.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/dfp/convert-int-max.c b/gcc/testsuite/c-c++-common/dfp/convert-int-max.c
new file mode 100644
index 000000000..724627d37
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/dfp/convert-int-max.c
@@ -0,0 +1,146 @@
+/* { dg-options "-O0 -w" } */
+
+/* N1150 5.1 Conversions from decimal float to integer. */
+
+/* Test decimal float to integer conversions for values at the limit of
+ what will fit into the destination type. This assumes 32-bit int and
+ 64-bit long long (there's a check for that below). */
+
+#include "dfp-dbg.h"
+
+volatile _Decimal32 d32;
+volatile _Decimal64 d64;
+volatile _Decimal128 d128;
+volatile int si;
+volatile unsigned int ui;
+volatile long long sll;
+volatile unsigned long long ull;
+
+void
+doit ()
+{
+ /* _Decimal32 to int. */
+
+ d32 = 2147483.E3DF;
+ si = d32;
+ if (si != 2147483000)
+ FAILURE
+
+ d32 = -2147483.E3DF;
+ si = d32;
+ if (si != -2147483000)
+ FAILURE
+
+ /* _Decimal32 to unsigned int. */
+
+ d32 = 4.294967E9DF;
+ ui = d32;
+ if (ui != 4294967000U)
+ FAILURE
+
+ /* _Decimal32 to long long. */
+
+ d32 = 922.3372E16DF;
+ sll = d32;
+ if (sll != 9223372000000000000LL)
+ FAILURE
+
+ d32 = -92233.72E14DF;
+ sll = d32;
+ if (sll != -9223372000000000000LL)
+ FAILURE
+
+ /* _Decimal32 to unsigned long long. */
+
+ d32 = .1844674E20DF;
+ ull = d32;
+ if (ull != 18446740000000000000ULL)
+ FAILURE
+
+ /* _Decimal64 to int. */
+
+ d64 = 2.147483647E9DD;
+ si = d64;
+ if (si != 2147483647)
+ FAILURE
+
+ d64 = -2147483648.DD;
+ si = d64;
+ if (si != -2147483648)
+ FAILURE
+
+ /* _Decimal64 to unsigned int. */
+
+ d64 = 42949.67295E5DD;
+ ui = d64;
+ if (ui != 4294967295)
+ FAILURE
+
+ /* _Decimal64 to long long. */
+
+ d64 = 9.223372036854775E18DD;
+ sll = d64;
+ if (sll != 9223372036854775000LL)
+ FAILURE
+
+ d64 = -92233720.36854775E11DD;
+ sll = d64;
+ if (sll != -9223372036854775000LL)
+ FAILURE
+
+ /* _Decimal64 to unsigned long long. */
+ d64 = 1844674407370955.E4DD;
+ ull = d64;
+ if (ull != 18446744073709550000ULL)
+ FAILURE
+
+ /* _Decimal128 to int. */
+
+ d128 = 2.147483647E9DL;
+ si = d128;
+ if (si != 2147483647)
+ FAILURE
+
+ d128 = -2147483648.DL;
+ si = d128;
+ if (si != -2147483648)
+ FAILURE
+
+ /* _Decimal128 to unsigned int. */
+
+ d128 = 4294.967295E6DL;
+ ui = d128;
+ if (ui != 4294967295)
+ FAILURE
+
+ /* _Decimal128 to long long. */
+
+ d128 = 9223372036854775807.DL;
+ sll = d128;
+ if (sll != 9223372036854775807LL)
+ FAILURE
+
+ d128 = -9.223372036854775808E19DL;
+ sll = d128;
+ if (sll != -9223372036854775807LL - 1LL)
+ FAILURE
+
+ /* _Decimal128 to unsigned long long. */
+ d128 = 18446744073709551615.DL;
+ ull = d128;
+ if (ull != 18446744073709551615ULL)
+ FAILURE
+}
+
+int
+main ()
+{
+ /* This test assumes 32-bit int and 64-bit long long. */
+
+ if (sizeof (int) != 4 || sizeof (long long) != 8)
+ return 0;
+
+ doit ();
+
+ FINISH
+}