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-rw-r--r--config/cmake/ConfigureChecks.cmake93
-rw-r--r--config/cmake/ConversionTests.c287
-rw-r--r--config/cmake/H5pubconf.h.in23
-rw-r--r--configure.ac173
-rw-r--r--release_docs/INSTALL_CMake.txt1
-rw-r--r--release_docs/RELEASE.txt22
-rw-r--r--src/H5T.c8
-rw-r--r--src/H5Tconv.c8
-rw-r--r--src/H5Tpkg.h31
-rw-r--r--test/dt_arith.c115
10 files changed, 736 insertions, 25 deletions
diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake
index 32faed4..8c401d9 100644
--- a/config/cmake/ConfigureChecks.cmake
+++ b/config/cmake/ConfigureChecks.cmake
@@ -560,6 +560,19 @@ endif ()
MARK_AS_ADVANCED (HDF5_STRICT_FORMAT_CHECKS)
# ----------------------------------------------------------------------
+# Decide whether the data accuracy has higher priority during data
+# conversions. If not, some hard conversions will still be preferred even
+# though the data may be wrong (for example, some compilers don't
+# support denormalized floating values) to maximize speed.
+#-----------------------------------------------------------------------------
+option (HDF5_WANT_DATA_ACCURACY "IF data accuracy is guaranteed during data conversions" ON)
+mark_as_advanced (HDF5_WANT_DATA_ACCURACY)
+if (HDF5_WANT_DATA_ACCURACY)
+ set (${HDF_PREFIX}_WANT_DATA_ACCURACY 1)
+endif ()
+MARK_AS_ADVANCED (HDF5_WANT_DATA_ACCURACY)
+
+# ----------------------------------------------------------------------
# Decide whether the presence of user's exception handling functions is
# checked and data conversion exceptions are returned. This is mainly
# for the speed optimization of hard conversions. Soft conversions can
@@ -847,3 +860,83 @@ if (HDF5_BUILD_FORTRAN)
message (STATUS "maximum decimal precision for C var - ${${HDF_PREFIX}_PAC_C_MAX_REAL_PRECISION}")
endif()
+
+#-----------------------------------------------------------------------------
+# Macro to determine the various conversion capabilities
+#-----------------------------------------------------------------------------
+macro (H5ConversionTests TEST msg)
+ if (NOT DEFINED ${TEST})
+ TRY_RUN (${TEST}_RUN ${TEST}_COMPILE
+ ${CMAKE_BINARY_DIR}
+ ${HDF_RESOURCES_DIR}/ConversionTests.c
+ CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=-D${TEST}_TEST
+ OUTPUT_VARIABLE OUTPUT
+ )
+ if (${TEST}_COMPILE)
+ if (${TEST}_RUN EQUAL "0")
+ set (${TEST} 1 CACHE INTERNAL ${msg})
+ message (VERBOSE "${msg}... yes")
+ else ()
+ set (${TEST} "" CACHE INTERNAL ${msg})
+ message (VERBOSE "${msg}... no")
+ file (APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
+ "Test ${TEST} Run failed with the following output and exit code:\n ${OUTPUT}\n"
+ )
+ endif ()
+ else ()
+ set (${TEST} "" CACHE INTERNAL ${msg})
+ message (VERBOSE "${msg}... no")
+ file (APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
+ "Test ${TEST} Compile failed with the following output:\n ${OUTPUT}\n"
+ )
+ endif ()
+
+ endif ()
+endmacro ()
+
+#-----------------------------------------------------------------------------
+# Check various conversion capabilities
+#-----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------
+# Set the flag to indicate that the machine is using a special algorithm toconvert
+# 'long double' to '(unsigned) long' values. (This flag should only be set for
+# the IBM Power Linux. When the bit sequence of long double is
+# 0x4351ccf385ebc8a0bfcc2a3c3d855620, the converted value of (unsigned)long
+# is 0x004733ce17af227f, not the same as the library's conversion to 0x004733ce17af2282.
+# The machine's conversion gets the correct value. We define the macro and disable
+# this kind of test until we figure out what algorithm they use.
+#-----------------------------------------------------------------------------
+H5ConversionTests (${HDF_PREFIX}_LDOUBLE_TO_LONG_SPECIAL "Checking IF your system converts long double to (unsigned) long values with special algorithm")
+# ----------------------------------------------------------------------
+# Set the flag to indicate that the machine is using a special algorithm
+# to convert some values of '(unsigned) long' to 'long double' values.
+# (This flag should be off for all machines, except for IBM Power Linux,
+# when the bit sequences are 003fff..., 007fff..., 00ffff..., 01ffff...,
+# ..., 7fffff..., the compiler uses a unknown algorithm. We define a
+# macro and skip the test for now until we know about the algorithm.
+#-----------------------------------------------------------------------------
+H5ConversionTests (${HDF_PREFIX}_LONG_TO_LDOUBLE_SPECIAL "Checking IF your system can convert (unsigned) long to long double values with special algorithm")
+# ----------------------------------------------------------------------
+# Set the flag to indicate that the machine can accurately convert
+# 'long double' to '(unsigned) long long' values. (This flag should be set for
+# all machines, except for Mac OS 10.4 and SGI IRIX64 6.5. When the bit sequence
+# of long double is 0x4351ccf385ebc8a0bfcc2a3c..., the values of (unsigned)long long
+# start to go wrong on these two machines. Adjusting it higher to
+# 0x4351ccf385ebc8a0dfcc... or 0x4351ccf385ebc8a0ffcc... will make the converted
+# values wildly wrong. This test detects this wrong behavior and disable the test.
+#-----------------------------------------------------------------------------
+H5ConversionTests (${HDF_PREFIX}_LDOUBLE_TO_LLONG_ACCURATE "Checking IF correctly converting long double to (unsigned) long long values")
+# ----------------------------------------------------------------------
+# Set the flag to indicate that the machine can accurately convert
+# '(unsigned) long long' to 'long double' values. (This flag should be set for
+# all machines, except for Mac OS 10.4, when the bit sequences are 003fff...,
+# 007fff..., 00ffff..., 01ffff..., ..., 7fffff..., the converted values are twice
+# as big as they should be.
+#-----------------------------------------------------------------------------
+H5ConversionTests (${HDF_PREFIX}_LLONG_TO_LDOUBLE_CORRECT "Checking IF correctly converting (unsigned) long long to long double values")
+# ----------------------------------------------------------------------
+# Set the flag to indicate that the machine can accurately convert
+# some long double values
+#-----------------------------------------------------------------------------
+H5ConversionTests (${HDF_PREFIX}_DISABLE_SOME_LDOUBLE_CONV "Checking IF the cpu is power9 and cannot correctly converting long double values")
diff --git a/config/cmake/ConversionTests.c b/config/cmake/ConversionTests.c
new file mode 100644
index 0000000..725f049
--- /dev/null
+++ b/config/cmake/ConversionTests.c
@@ -0,0 +1,287 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group. *
+ * All rights reserved. *
+ * *
+ * This file is part of HDF5. The full HDF5 copyright notice, including *
+ * terms governing use, modification, and redistribution, is contained in *
+ * the COPYING file, which can be found at the root of the source code *
+ * distribution tree, or in https://www.hdfgroup.org/licenses. *
+ * If you do not have access to either file, you may request a copy from *
+ * help@hdfgroup.org. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#if defined(__has_attribute)
+# if __has_attribute(no_sanitize)
+# define HDF_NO_UBSAN __attribute__((no_sanitize("undefined")))
+# else
+# define HDF_NO_UBSAN
+# endif
+#else
+# define HDF_NO_UBSAN
+#endif
+
+#ifdef H5_LDOUBLE_TO_LONG_SPECIAL_TEST
+
+#include <string.h>
+#include <stdlib.h>
+
+int HDF_NO_UBSAN main(void)
+{
+ long double ld = 20041683600089727.779961L;
+ long ll;
+ unsigned long ull;
+ unsigned char s[16];
+ unsigned char s2[8];
+ int ret = 1;
+
+ if (sizeof(long double) == 16 && sizeof(long) == 8) {
+ /* Make sure the long double type has 16 bytes in size and
+ * 11 bits of exponent. If it is, the bit sequence should be
+ * like below. It's not a decent way to check but this info
+ * isn't available.
+ */
+ memcpy(s, &ld, 16);
+ if (s[0]==0x43 && s[1]==0x51 && s[2]==0xcc && s[3]==0xf3 &&
+ s[4]==0x85 && s[5]==0xeb && s[6]==0xc8 && s[7]==0xa0 &&
+ s[8]==0xbf && s[9]==0xcc && s[10]==0x2a && s[11]==0x3c) {
+
+ /* Assign the hexadecimal value of long double type. */
+ s[0]=0x43; s[1]=0x51; s[2]=0xcc; s[3]=0xf3;
+ s[4]=0x85; s[5]=0xeb; s[6]=0xc8; s[7]=0xa0;
+ s[8]=0xbf; s[9]=0xcc; s[10]=0x2a; s[11]=0x3c;
+ s[12]=0x3d; s[13]=0x85; s[14]=0x56; s[15]=0x20;
+
+ memcpy(&ld, s, 16);
+
+ ll = (long)ld;
+ memcpy(s2, &ll, 8);
+
+ /* The library's algorithm converts it to 0x00 47 33 ce 17 af 22 82
+ * and gets wrong value 20041683600089730 on Linux on IBM Power
+ * architecture.
+ *
+ * But Linux on IBM Power converts it to 0x00 47 33 ce 17 af 22 7f
+ * and gets the correct value 20041683600089727. It uses some special
+ * algorithm. We're going to define the macro and skip the test until
+ * we can figure out how they do it.
+ */
+ if (s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce &&
+ s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f)
+
+ ret = 0;
+
+ ull = (unsigned long)ld;
+ memcpy(s2, &ull, 8);
+
+ /* The unsigned long is the same as signed long */
+ if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce &&
+ s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f)
+
+ ret = 0;
+ }
+ }
+
+done:
+ exit(ret);
+}
+
+#endif
+
+#ifdef H5_LONG_TO_LDOUBLE_SPECIAL_TEST
+
+#include <string.h>
+#include <stdlib.h>
+
+int HDF_NO_UBSAN main(void)
+{
+ long double ld;
+ long ll;
+ unsigned long ull;
+ unsigned char s[16];
+ int flag=0, ret=1;
+
+ /* Determine if long double has 16 byte in size, 11 bit exponent, and
+ * the bias is 0x3ff
+ */
+ if (sizeof(long double) == 16) {
+ ld = 1.0L;
+ memcpy(s, &ld, 16);
+
+ if (s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
+ s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00)
+
+ flag = 1;
+ }
+
+ if (flag==1 && sizeof(long)==8) {
+ ll = 0x003fffffffffffffL;
+ ld = (long double)ll;
+ memcpy(s, &ld, 16);
+
+ /* The library converts the value to 0x434fffffffffffff8000000000000000.
+ * In decimal it is 18014398509481982.000000, one value short of the original.
+ *
+ * Linux on IBM Power architecture converts it to
+ * 0x4350000000000000bff0000000000000. The value is correct in decimal.
+ * It uses some special algorithm. We're going to define the macro and
+ * skip the test until we can figure out how they do it.
+ */
+ if (s[0]==0x43 && s[1]==0x50 && s[2]==0x00 && s[3]==0x00 &&
+ s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 &&
+ s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 &&
+ s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
+
+ ret = 0;
+ }
+
+ if (flag==1 && sizeof(unsigned long)==8) {
+ ull = 0xffffffffffffffffUL;
+ ld = (long double)ull;
+ memcpy(s, &ld, 16);
+
+ /* Use a different value from signed long to test. The problem is the
+ * same for both long and unsigned long. The value is 18446744073709551615.
+ * The library converts the value to 0x43effffffffffffffe000000000000000.
+ * In decimal it's 18446744073709548544.000000, very different from the
+ * original. Linux on IBM Power architecture converts it to
+ * 0x43f0000000000000bff0000000000000. The value is correct in decimal.
+ * It uses some special algorithm. We're going to define the macro and
+ * skip the test until we can figure out how they do it.
+ */
+ if (s[0]==0x43 && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
+ s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 &&
+ s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 &&
+ s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
+
+ ret = 0;
+ }
+done:
+ exit(ret);
+}
+
+#endif
+
+#ifdef H5_LDOUBLE_TO_LLONG_ACCURATE_TEST
+
+#include <string.h>
+#include <stdlib.h>
+
+int HDF_NO_UBSAN main(void)
+{
+ long double ld = 20041683600089727.779961L;
+ long long ll;
+ unsigned long long ull;
+ unsigned char s[16];
+ int ret = 0;
+
+ if (sizeof(long double) == 16) {
+ /* Make sure the long double type is the same as the failing type
+ * which has 16 bytes in size and 11 bits of exponent. If it is,
+ * the bit sequence should be like below. It's not
+ * a decent way to check but this info isn't available.
+ */
+ memcpy(s, &ld, 16);
+
+ if (s[0]==0x43 && s[1]==0x51 && s[2]==0xcc && s[3]==0xf3 &&
+ s[4]==0x85 && s[5]==0xeb && s[6]==0xc8 && s[7]==0xa0 &&
+ s[8]==0xbf && s[9]==0xcc && s[10]==0x2a && s[11]==0x3c) {
+
+ /* Slightly adjust the bit sequence (s[8]=0xdf). The converted
+ * values will go wild on Mac OS 10.4 and IRIX64 6.5.
+ */
+ s[0]=0x43; s[1]=0x51; s[2]=0xcc; s[3]=0xf3;
+ s[4]=0x85; s[5]=0xeb; s[6]=0xc8; s[7]=0xa0;
+ s[8]=0xdf; s[9]=0xcc; s[10]=0x2a; s[11]=0x3c;
+ s[12]=0x3d; s[13]=0x85; s[14]=0x56; s[15]=0x20;
+
+ memcpy(&ld, s, 16);
+ ll = (long long)ld;
+ ull = (unsigned long long)ld;
+
+ if (ll != 20041683600089728 || ull != 20041683600089728)
+ ret = 1;
+ }
+ }
+done:
+ exit(ret);
+}
+#endif
+
+#ifdef H5_LLONG_TO_LDOUBLE_CORRECT_TEST
+
+#include <string.h>
+#include <stdlib.h>
+
+int HDF_NO_UBSAN main(void)
+{
+ long double ld;
+ long long ll;
+ unsigned long long ull;
+ unsigned char s[16];
+ int flag=0, ret=0;
+
+ /* Determine if long double has 16 byte in size, 11 bit exponent, and
+ * the bias is 0x3ff
+ */
+ if (sizeof(long double) == 16) {
+ ld = 1.0L;
+ memcpy(s, &ld, 16);
+ if (s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
+ s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00)
+
+ flag = 1;
+ }
+
+ if (flag==1 && sizeof(long long)==8) {
+ ll = 0x01ffffffffffffffLL;
+ ld = (long double)ll;
+ memcpy(s, &ld, 16);
+
+ /* Check if the bit sequence is as expected*/
+ if (s[0]!=0x43 || s[1]!=0x7f || s[2]!=0xff || s[3]!=0xff ||
+ s[4]!=0xff || s[5]!=0xff || s[6]!=0xff || s[7]!=0xff ||
+ s[8]!=0xf0 || s[9]!=0x00 || s[10]!=0x00 || s[11]!=0x00)
+
+ ret = 1;
+ }
+ if (flag==1 && sizeof(unsigned long long)==8) {
+ ull = 0x01ffffffffffffffULL;
+ ld = (long double)ull;
+ memcpy(s, &ld, 16);
+
+ if (s[0]!=0x43 || s[1]!=0x7f || s[2]!=0xff || s[3]!=0xff ||
+ s[4]!=0xff || s[5]!=0xff || s[6]!=0xff || s[7]!=0xff ||
+ s[8]!=0xf0 || s[9]!=0x00 || s[10]!=0x00 || s[11]!=0x00)
+
+ ret = 1;
+ }
+
+done:
+ exit(ret);
+}
+#endif
+
+#ifdef H5_DISABLE_SOME_LDOUBLE_CONV_TEST
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int HDF_NO_UBSAN main(void)
+{
+ FILE *fp;
+ char cpu[64];
+
+ fp = popen("uname -m", "r");
+
+ fgets(cpu, sizeof(cpu)-1, fp);
+
+ pclose(fp);
+
+ if (strncmp(cpu, "ppc64le", 7) == 0)
+ return 0;
+
+ return 1;
+}
+
+#endif
diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in
index 444a0e4..d4b0d36 100644
--- a/config/cmake/H5pubconf.h.in
+++ b/config/cmake/H5pubconf.h.in
@@ -32,6 +32,10 @@
/* Define if dev_t is a scalar */
#cmakedefine H5_DEV_T_IS_SCALAR @H5_DEV_T_IS_SCALAR@
+/* Define if your system is IBM ppc64le and cannot convert some long double
+ values correctly. */
+#cmakedefine H5_DISABLE_SOME_LDOUBLE_CONV @H5_DISABLE_SOME_LDOUBLE_CONV@
+
/* Define to dummy `main' function (if any) required to link to the Fortran
libraries. */
#cmakedefine H5_FC_DUMMY_MAIN @H5_FC_DUMMY_MAIN@
@@ -371,6 +375,22 @@
/* Define if new-style references should be used with dimension scales */
#cmakedefine H5_DIMENSION_SCALES_WITH_NEW_REF @H5_DIMENSION_SCALES_WITH_NEW_REF@
+/* Define if your system can convert long double to (unsigned) long long
+ values correctly. */
+#cmakedefine H5_LDOUBLE_TO_LLONG_ACCURATE @H5_LDOUBLE_TO_LLONG_ACCURATE@
+
+/* Define if your system converts long double to (unsigned) long values with
+ special algorithm. */
+#cmakedefine H5_LDOUBLE_TO_LONG_SPECIAL @H5_LDOUBLE_TO_LONG_SPECIAL@
+
+/* Define if your system can convert (unsigned) long long to long double
+ values correctly. */
+#cmakedefine H5_LLONG_TO_LDOUBLE_CORRECT @H5_LLONG_TO_LDOUBLE_CORRECT@
+
+/* Define if your system can convert (unsigned) long to long double values
+ with special algorithm. */
+#cmakedefine H5_LONG_TO_LDOUBLE_SPECIAL @H5_LONG_TO_LDOUBLE_SPECIAL@
+
/* Define to the sub-directory where libtool stores uninstalled libraries. */
#cmakedefine H5_LT_OBJDIR @H5_LT_OBJDIR@
@@ -599,6 +619,9 @@
/* Version number of package */
#define H5_VERSION "@HDF5_PACKAGE_VERSION_STRING@"
+/* Data accuracy is preferred to speed during data conversions */
+#cmakedefine H5_WANT_DATA_ACCURACY @H5_WANT_DATA_ACCURACY@
+
/* Check exception handling functions during data conversions */
#cmakedefine H5_WANT_DCONV_EXCEPTION @H5_WANT_DCONV_EXCEPTION@
diff --git a/configure.ac b/configure.ac
index 3c952e8..1a87357 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3384,6 +3384,27 @@ else
fi
## ----------------------------------------------------------------------
+## Decide whether the data accuracy has higher priority during data
+## conversions. If not, some hard conversions will still be preferred even
+## though the data may be wrong (for example, some compilers don't
+## support denormalized floating values) to maximize speed.
+##
+AC_MSG_CHECKING([whether data accuracy is guaranteed during data conversions])
+AC_ARG_ENABLE([dconv-accuracy],
+ [AS_HELP_STRING([--enable-dconv-accuracy],
+ [if data accuracy is guaranteed during
+ data conversions [default=yes]])],
+ [DATA_ACCURACY=$enableval], [DATA_ACCURACY=yes])
+
+if test "$DATA_ACCURACY" = "yes"; then
+ AC_MSG_RESULT([yes])
+ AC_DEFINE([WANT_DATA_ACCURACY], [1],
+ [Data accuracy is preferred to speed during data conversions])
+else
+ AC_MSG_RESULT([no])
+fi
+
+## ----------------------------------------------------------------------
## Set the flag to indicate that the machine has window style pathname,
## that is, "drive-letter:\" (e.g. "C:") or "drive-letter:/" (e.g. "C:/").
## (This flag should be _unset_ for all machines, except for Windows, where
@@ -3403,6 +3424,158 @@ case "`uname`" in
esac
## ----------------------------------------------------------------------
+## Set the flag to indicate that the machine is using a special algorithm to convert
+## 'long double' to '(unsigned) long' values. (This flag should only be set for
+## the IBM Power Linux. When the bit sequence of long double is
+## 0x4351ccf385ebc8a0bfcc2a3c3d855620, the converted value of (unsigned)long
+## is 0x004733ce17af227f, not the same as the library's conversion to 0x004733ce17af2282.
+## The machine's conversion gets the correct value. We define the macro and disable
+## this kind of test until we figure out what algorithm they use.
+##
+## CROSS-COMPILING: Assume 'no'
+AC_MSG_CHECKING([if using special algorithm to convert long double to (unsigned) long values])
+
+## NOTE: Place all configure test programs into cmake's source file, then use a preprocessor directive
+## to select the proper test program. This is done by echoing the #define and cat'ing the cmake
+## source file. (HDFFV-9467)
+
+TEST_SRC="`(echo \"#define H5_LDOUBLE_TO_LONG_SPECIAL_TEST 1\"; cat $srcdir/config/cmake/ConversionTests.c)`"
+
+if test ${ac_cv_sizeof_long_double} = 0; then
+ hdf5_cv_ldouble_to_long_special=${hdf5_cv_ldouble_to_long_special=no}
+else
+ AC_CACHE_VAL([hdf5_cv_ldouble_to_long_special],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([$TEST_SRC])]
+ , [hdf5_cv_ldouble_to_long_special=yes], [hdf5_cv_ldouble_to_long_special=no], [hdf5_cv_ldouble_to_long_special=no])])
+fi
+
+if test ${hdf5_cv_ldouble_to_long_special} = "yes"; then
+ AC_DEFINE([LDOUBLE_TO_LONG_SPECIAL], [1],
+ [Define if your system converts long double to (unsigned) long values with special algorithm.])
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+## ----------------------------------------------------------------------
+## Set the flag to indicate that the machine is using a special algorithm
+## to convert some values of '(unsigned) long' to 'long double' values.
+## (This flag should be off for all machines, except for IBM Power Linux,
+## when the bit sequences are 003fff..., 007fff..., 00ffff..., 01ffff...,
+## ..., 7fffff..., the compiler uses a unknown algorithm. We define a
+## macro and skip the test for now until we know about the algorithm.
+##
+## CROSS-COMPILING: Assume 'no'
+AC_MSG_CHECKING([if using special algorithm to convert (unsigned) long to long double values])
+
+TEST_SRC="`(echo \"#define H5_LONG_TO_LDOUBLE_SPECIAL_TEST 1\"; cat $srcdir/config/cmake/ConversionTests.c)`"
+
+if test ${ac_cv_sizeof_long_double} = 0; then
+ hdf5_cv_long_to_ldouble_special=${hdf5_cv_long_to_ldouble_special=no}
+else
+ AC_CACHE_VAL([hdf5_cv_long_to_ldouble_special],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([$TEST_SRC])]
+ , [hdf5_cv_long_to_ldouble_special=yes], [hdf5_cv_long_to_ldouble_special=no], [hdf5_cv_long_to_ldouble_special=no])])
+fi
+
+if test ${hdf5_cv_long_to_ldouble_special} = "yes"; then
+ AC_DEFINE([LONG_TO_LDOUBLE_SPECIAL], [1],
+ [Define if your system can convert (unsigned) long to long double values with special algorithm.])
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+## ----------------------------------------------------------------------
+## Set the flag to indicate that the machine can accurately convert
+## 'long double' to '(unsigned) long long' values. (This flag should
+## be set for all machines, except for Mac OS 10.4, SGI IRIX64 6.5 and
+## Powerpc Linux using XL compilers.
+## When the bit sequence of long double is 0x4351ccf385ebc8a0bfcc2a3c...,
+## the values of (unsigned)long long start to go wrong on these
+## two machines. Adjusting it higher to 0x4351ccf385ebc8a0dfcc... or
+## 0x4351ccf385ebc8a0ffcc... will make the converted values wildly wrong.
+## This test detects this wrong behavior and disable the test.
+##
+## CROSS-COMPILING: Assume 'yes'
+AC_MSG_CHECKING([if correctly converting long double to (unsigned) long long values])
+
+TEST_SRC="`(echo \"#define H5_LDOUBLE_TO_LLONG_ACCURATE_TEST 1\"; cat $srcdir/config/cmake/ConversionTests.c)`"
+
+if test ${ac_cv_sizeof_long_double} = 0; then
+ hdf5_cv_ldouble_to_llong_accurate=${hdf5_cv_ldouble_to_llong_accurate=no}
+else
+ AC_CACHE_VAL([hdf5_cv_ldouble_to_llong_accurate],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([$TEST_SRC])],
+ [hdf5_cv_ldouble_to_llong_accurate=yes], [hdf5_cv_ldouble_to_llong_accurate=no], [hdf5_cv_ldouble_to_llong_accurate=yes])])
+fi
+
+if test ${hdf5_cv_ldouble_to_llong_accurate} = "yes"; then
+ AC_DEFINE([LDOUBLE_TO_LLONG_ACCURATE], [1],
+ [Define if your system can convert long double to (unsigned) long long values correctly.])
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+
+## ----------------------------------------------------------------------
+## Set the flag to indicate that the machine can accurately convert
+## '(unsigned) long long' to 'long double' values. (This flag should be
+## set for all machines, except for Mac OS 10.4 and Powerpc Linux using
+## XL compilers.
+## When the bit sequences are 003fff..., 007fff..., 00ffff..., 01ffff...,
+## ..., 7fffff..., the converted values are twice as big as they should be.
+##
+## CROSS-COMPILING: Assume 'yes'
+AC_MSG_CHECKING([if correctly converting (unsigned) long long to long double values])
+
+TEST_SRC="`(echo \"#define H5_LLONG_TO_LDOUBLE_CORRECT_TEST 1\"; cat $srcdir/config/cmake/ConversionTests.c)`"
+
+if test ${ac_cv_sizeof_long_double} = 0; then
+ hdf5_cv_llong_to_ldouble_correct=${hdf5_cv_llong_to_ldouble_correct=no}
+else
+ AC_CACHE_VAL([hdf5_cv_llong_to_ldouble_correct],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([$TEST_SRC])],
+ [hdf5_cv_llong_to_ldouble_correct=yes], [hdf5_cv_llong_to_ldouble_correct=no], [hdf5_cv_llong_to_ldouble_correct=yes])])
+fi
+
+if test ${hdf5_cv_llong_to_ldouble_correct} = "yes"; then
+ AC_DEFINE([LLONG_TO_LDOUBLE_CORRECT], [1],
+ [Define if your system can convert (unsigned) long long to long double values correctly.])
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+## ----------------------------------------------------------------------
+## Set the flag to indicate that the machine is IBM ppc64le and cannot
+## accurately convert some long double values.
+##
+## CROSS-COMPILING: Assume 'yes'
+AC_MSG_CHECKING([if the system is IBM ppc64le and cannot correctly convert some long double values])
+
+TEST_SRC="`(echo \"#define H5_DISABLE_SOME_LDOUBLE_CONV_TEST 1\"; cat $srcdir/config/cmake/ConversionTests.c)`"
+
+if test ${ac_cv_sizeof_long_double} = 0; then
+ hdf5_cv_disable_some_ldouble_conv=${hdf5_cv_disable_some_ldouble_conv=no}
+else
+ AC_CACHE_VAL([hdf5_cv_disable_some_ldouble_conv],
+ [AC_RUN_IFELSE([AC_LANG_SOURCE([$TEST_SRC])],
+ [hdf5_cv_disable_some_ldouble_conv=yes], [hdf5_cv_disable_some_ldouble_conv=no], [hdf5_cv_disable_some_ldouble_conv=yes])])
+fi
+
+if test ${hdf5_cv_disable_some_ldouble_conv} = "yes"; then
+ AC_DEFINE([DISABLE_SOME_LDOUBLE_CONV], [1],
+ [Define if your system is IBM ppc64le and cannot convert some long double values correctly.])
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+## ----------------------------------------------------------------------
## Set some variables for general configuration information to be saved
## and installed with the libraries (used to generate libhdf5.settings).
##
diff --git a/release_docs/INSTALL_CMake.txt b/release_docs/INSTALL_CMake.txt
index 5a011e7..6816b1a 100644
--- a/release_docs/INSTALL_CMake.txt
+++ b/release_docs/INSTALL_CMake.txt
@@ -834,6 +834,7 @@ HDF5_PACKAGE_EXTLIBS "CPACK - include external libraries"
HDF5_STRICT_FORMAT_CHECKS "Whether to perform strict file format checks" OFF
DEFAULT_API_VERSION "Enable default API (v16, v18, v110, v112, v114)" "v114"
HDF5_USE_FOLDERS "Enable folder grouping of projects in IDEs." ON
+HDF5_WANT_DATA_ACCURACY "IF data accuracy is guaranteed during data conversions" ON
HDF5_WANT_DCONV_EXCEPTION "exception handling functions is checked during data conversions" ON
HDF5_ENABLE_THREADSAFE "Enable Threadsafety" OFF
HDF5_MSVC_NAMING_CONVENTION "Use MSVC Naming conventions for Shared Libraries" OFF
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 2abc003..9fa590a 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -65,28 +65,6 @@ New Features
The functionality of H5detect is now exercised at library startup,
so H5detect has been removed.
- - Removed long double work-around symbols and configure options
-
- Several options and public symbols that were provided to paper over
- non-standard long double conversions between signed/unsigned long
- and long long values were removed from the Autotools and CMake. These
- were added twenty years ago, when C99 and 64-bit platforms were less
- common and are no longer needed.
-
- Autotools:
- --enable-dconv-accuracy
-
- CMake:
- HDF5_WANT_DATA_ACCURACY
-
- H5pubconf.h symbols:
- H5_WANT_DATA_ACCURACY
- H5_LDOUBLE_TO_LONG_SPECIAL
- H5_LONG_TO_LDOUBLE_SPECIAL
- H5_LDOUBLE_TO_LLONG_ACCURATE
- H5_LLONG_TO_LDOUBLE_CORRECT
- H5_DISABLE_SOME_LDOUBLE_CONV
-
- Updated HDF5 API tests CMake code to support VOL connectors
* Implemented support for fetching, building and testing HDF5
diff --git a/src/H5T.c b/src/H5T.c
index 6475164..516000a 100644
--- a/src/H5T.c
+++ b/src/H5T.c
@@ -1276,16 +1276,20 @@ H5T_init(void)
H5T__register_int(H5T_PERS_HARD, "llong_flt", native_llong, native_float, H5T__conv_llong_float);
status |=
H5T__register_int(H5T_PERS_HARD, "llong_dbl", native_llong, native_double, H5T__conv_llong_double);
+#ifdef H5T_CONV_INTERNAL_LLONG_LDOUBLE
status |=
H5T__register_int(H5T_PERS_HARD, "llong_ldbl", native_llong, native_ldouble, H5T__conv_llong_ldouble);
+#endif /* H5T_CONV_INTERNAL_LLONG_LDOUBLE */
/* From unsigned long long to floats */
status |=
H5T__register_int(H5T_PERS_HARD, "ullong_flt", native_ullong, native_float, H5T__conv_ullong_float);
status |=
H5T__register_int(H5T_PERS_HARD, "ullong_dbl", native_ullong, native_double, H5T__conv_ullong_double);
+#ifdef H5T_CONV_INTERNAL_ULLONG_LDOUBLE
status |= H5T__register_int(H5T_PERS_HARD, "ullong_ldbl", native_ullong, native_ldouble,
H5T__conv_ullong_ldouble);
+#endif /* H5T_CONV_INTERNAL_ULLONG_LDOUBLE */
/* From floats to char */
status |=
@@ -1349,16 +1353,20 @@ H5T_init(void)
H5T__register_int(H5T_PERS_HARD, "flt_llong", native_float, native_llong, H5T__conv_float_llong);
status |=
H5T__register_int(H5T_PERS_HARD, "dbl_llong", native_double, native_llong, H5T__conv_double_llong);
+#ifdef H5T_CONV_INTERNAL_LDOUBLE_LLONG
status |=
H5T__register_int(H5T_PERS_HARD, "ldbl_llong", native_ldouble, native_llong, H5T__conv_ldouble_llong);
+#endif /* H5T_CONV_INTERNAL_LDOUBLE_LLONG */
/* From floats to unsigned long long */
status |=
H5T__register_int(H5T_PERS_HARD, "flt_ullong", native_float, native_ullong, H5T__conv_float_ullong);
status |=
H5T__register_int(H5T_PERS_HARD, "dbl_ullong", native_double, native_ullong, H5T__conv_double_ullong);
+#if H5T_CONV_INTERNAL_LDOUBLE_ULLONG
status |= H5T__register_int(H5T_PERS_HARD, "ldbl_ullong", native_ldouble, native_ullong,
H5T__conv_ldouble_ullong);
+#endif /* H5T_CONV_INTERNAL_LDOUBLE_ULLONG */
/*
* The special no-op conversion is the fastest, so we list it last. The
diff --git a/src/H5Tconv.c b/src/H5Tconv.c
index 55725b3..8118eb0 100644
--- a/src/H5Tconv.c
+++ b/src/H5Tconv.c
@@ -7656,12 +7656,14 @@ H5T__conv_llong_double(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t ne
*
*-------------------------------------------------------------------------
*/
+#ifdef H5T_CONV_INTERNAL_LLONG_LDOUBLE
herr_t
H5T__conv_llong_ldouble(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts, size_t buf_stride,
size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LLONG, LDOUBLE, long long, long double, -, -);
}
+#endif /* H5T_CONV_INTERNAL_LLONG_LDOUBLE */
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_float
@@ -7716,12 +7718,14 @@ H5T__conv_ullong_double(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t n
*
*-------------------------------------------------------------------------
*/
+#ifdef H5T_CONV_INTERNAL_ULLONG_LDOUBLE
herr_t
H5T__conv_ullong_ldouble(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts, size_t buf_stride,
size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULLONG, LDOUBLE, unsigned long long, long double, -, -);
}
+#endif /*H5T_CONV_INTERNAL_ULLONG_LDOUBLE*/
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_schar
@@ -8352,6 +8356,7 @@ H5T__conv_double_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t n
*
*-------------------------------------------------------------------------
*/
+#ifdef H5T_CONV_INTERNAL_LDOUBLE_LLONG
herr_t
H5T__conv_ldouble_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts, size_t buf_stride,
size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
@@ -8360,6 +8365,7 @@ H5T__conv_ldouble_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t n
H5T_CONV_Fx(LDOUBLE, LLONG, long double, long long, LLONG_MIN, LLONG_MAX);
H5_GCC_CLANG_DIAG_ON("float-equal")
}
+#endif /*H5T_CONV_INTERNAL_LDOUBLE_LLONG*/
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_ullong
@@ -8374,6 +8380,7 @@ H5T__conv_ldouble_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t n
*
*-------------------------------------------------------------------------
*/
+#ifdef H5T_CONV_INTERNAL_LDOUBLE_ULLONG
herr_t
H5T__conv_ldouble_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts, size_t buf_stride,
size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
@@ -8382,6 +8389,7 @@ H5T__conv_ldouble_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t
H5T_CONV_Fx(LDOUBLE, ULLONG, long double, unsigned long long, 0, ULLONG_MAX);
H5_GCC_CLANG_DIAG_ON("float-equal")
}
+#endif /*H5T_CONV_INTERNAL_LDOUBLE_ULLONG*/
/*-------------------------------------------------------------------------
* Function: H5T__conv_f_i
diff --git a/src/H5Tpkg.h b/src/H5Tpkg.h
index df16413..23fa960 100644
--- a/src/H5Tpkg.h
+++ b/src/H5Tpkg.h
@@ -112,6 +112,37 @@
/* (_not_ setting H5T_VISIT_SIMPLE and setting either H5T_VISIT_COMPLEX_FIRST or H5T_VISIT_COMPLEX_LAST will
* mean visiting all nodes _except_ "simple" "leafs" in the "tree" */
+/* Define an internal macro for converting long long to long double. Mac OS 10.4 gives some
+ * incorrect conversions. */
+#if (H5_WANT_DATA_ACCURACY && defined(H5_LLONG_TO_LDOUBLE_CORRECT)) || (!H5_WANT_DATA_ACCURACY)
+#define H5T_CONV_INTERNAL_LLONG_LDOUBLE 1
+#endif
+
+/* Define an internal macro for converting unsigned long long to long double. SGI compilers give
+ * some incorrect conversion. 64-bit Solaris does different rounding. Windows Visual Studio 6 does
+ * not support unsigned long long. For FreeBSD(sleipnir), the last 2 bytes of mantissa are lost when
+ * compiler tries to do the conversion. For Cygwin, compiler doesn't do rounding correctly.
+ * Mac OS 10.4 gives some incorrect result. */
+#if (H5_WANT_DATA_ACCURACY && defined(H5_LLONG_TO_LDOUBLE_CORRECT)) || (!H5_WANT_DATA_ACCURACY)
+#define H5T_CONV_INTERNAL_ULLONG_LDOUBLE 1
+#endif
+
+/* Define an internal macro for converting long double to long long. SGI compilers give some incorrect
+ * conversions. Mac OS 10.4 gives incorrect conversions. HP-UX 11.00 compiler generates floating exception.
+ * The hard conversion on Windows .NET 2003 has a bug and gives wrong exception value. */
+#if (H5_WANT_DATA_ACCURACY && defined(H5_LDOUBLE_TO_LLONG_ACCURATE)) || (!H5_WANT_DATA_ACCURACY)
+#define H5T_CONV_INTERNAL_LDOUBLE_LLONG 1
+#endif
+
+/* Define an internal macro for converting long double to unsigned long long. SGI compilers give some
+ * incorrect conversions. Mac OS 10.4 gives incorrect conversions. HP-UX 11.00 compiler generates
+ * floating exception. */
+#if (H5_WANT_DATA_ACCURACY && defined(H5_LDOUBLE_TO_LLONG_ACCURATE)) || (!H5_WANT_DATA_ACCURACY)
+#define H5T_CONV_INTERNAL_LDOUBLE_ULLONG 1
+#else
+#define H5T_CONV_INTERNAL_LDOUBLE_ULLONG 0
+#endif
+
/* Statistics about a conversion function */
struct H5T_stats_t {
unsigned ncalls; /*num calls to conversion function */
diff --git a/test/dt_arith.c b/test/dt_arith.c
index ccf2ec9..a26945f 100644
--- a/test/dt_arith.c
+++ b/test/dt_arith.c
@@ -11,6 +11,9 @@
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
+ * Programmer: Robb Matzke
+ * Tuesday, December 9, 1997
+ *
* Purpose: Tests the data type interface (H5T)
*/
@@ -4842,7 +4845,20 @@ run_fp_tests(const char *name)
#if H5_SIZEOF_LONG_DOUBLE != H5_SIZEOF_DOUBLE
nerrors += test_conv_flt_1(name, TEST_DENORM, H5T_NATIVE_FLOAT, H5T_NATIVE_LDOUBLE);
nerrors += test_conv_flt_1(name, TEST_DENORM, H5T_NATIVE_DOUBLE, H5T_NATIVE_LDOUBLE);
+#ifndef H5_DISABLE_SOME_LDOUBLE_CONV
nerrors += test_conv_flt_1(name, TEST_DENORM, H5T_NATIVE_LDOUBLE, H5T_NATIVE_FLOAT);
+#else
+ {
+ char str[256]; /*string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s denormalized %s -> %s conversions", name, "long double",
+ "float");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to the conversion problem on IBM ppc64le cpu.");
+ }
+#endif
+
nerrors += test_conv_flt_1(name, TEST_DENORM, H5T_NATIVE_LDOUBLE, H5T_NATIVE_DOUBLE);
#endif
@@ -4852,8 +4868,20 @@ run_fp_tests(const char *name)
#if H5_SIZEOF_LONG_DOUBLE != H5_SIZEOF_DOUBLE
nerrors += test_conv_flt_1(name, TEST_SPECIAL, H5T_NATIVE_FLOAT, H5T_NATIVE_LDOUBLE);
nerrors += test_conv_flt_1(name, TEST_SPECIAL, H5T_NATIVE_DOUBLE, H5T_NATIVE_LDOUBLE);
+#ifndef H5_DISABLE_SOME_LDOUBLE_CONV
nerrors += test_conv_flt_1(name, TEST_SPECIAL, H5T_NATIVE_LDOUBLE, H5T_NATIVE_FLOAT);
nerrors += test_conv_flt_1(name, TEST_SPECIAL, H5T_NATIVE_LDOUBLE, H5T_NATIVE_DOUBLE);
+#else
+ {
+ char str[256]; /*string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s special %s -> %s conversions", name, "long double",
+ "float or double");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to the conversion problem on IBM ppc64le cpu.");
+ }
+#endif
#endif
done:
@@ -4919,12 +4947,47 @@ run_int_fp_conv(const char *name)
nerrors += test_conv_int_fp(name, TEST_NORMAL, H5T_NATIVE_INT, H5T_NATIVE_LDOUBLE);
nerrors += test_conv_int_fp(name, TEST_NORMAL, H5T_NATIVE_UINT, H5T_NATIVE_LDOUBLE);
#if H5_SIZEOF_LONG != H5_SIZEOF_INT
+#if !defined(H5_LONG_TO_LDOUBLE_SPECIAL) && !defined(H5_DISABLE_SOME_LDOUBLE_CONV)
nerrors += test_conv_int_fp(name, TEST_NORMAL, H5T_NATIVE_LONG, H5T_NATIVE_LDOUBLE);
nerrors += test_conv_int_fp(name, TEST_NORMAL, H5T_NATIVE_ULONG, H5T_NATIVE_LDOUBLE);
+#else
+ {
+ char str[256]; /*string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s %s -> %s conversions", name, "(unsigned) long",
+ "long double");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to the special algorithm of hardware conversion.");
+ }
+#endif
#endif /* H5_SIZEOF_LONG!=H5_SIZEOF_INT */
#if H5_SIZEOF_LONG_LONG != H5_SIZEOF_LONG
+#if H5_LLONG_TO_LDOUBLE_CORRECT
nerrors += test_conv_int_fp(name, TEST_NORMAL, H5T_NATIVE_LLONG, H5T_NATIVE_LDOUBLE);
+#else /* H5_LLONG_TO_LDOUBLE_CORRECT */
+ {
+ char str[256]; /*hello string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s %s -> %s conversions", name, "long long", "long double");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to compiler error in handling conversion.");
+ }
+#endif /* H5_LLONG_TO_LDOUBLE_CORRECT */
+#if H5_LLONG_TO_LDOUBLE_CORRECT
nerrors += test_conv_int_fp(name, TEST_NORMAL, H5T_NATIVE_ULLONG, H5T_NATIVE_LDOUBLE);
+#else /* H5_LLONG_TO_LDOUBLE_CORRECT */
+ {
+ char str[256]; /*hello string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s %s -> %s conversions", name, "unsigned long long",
+ "long double");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to compiler not handling conversion.");
+ }
+#endif /* H5_LLONG_TO_LDOUBLE_CORRECT */
#endif
#endif
@@ -5000,31 +5063,77 @@ run_fp_int_conv(const char *name)
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_UINT);
}
else {
+#ifndef H5_DISABLE_SOME_LDOUBLE_CONV
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_SCHAR);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_UCHAR);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_SHORT);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_USHORT);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_INT);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_UINT);
+#else
+ char str[256]; /*string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s special %s -> %s conversions", name, "long double",
+ "signed and unsigned char, short, int, long");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to the conversion problem on IBM ppc64le cpu.");
+#endif
}
#if H5_SIZEOF_LONG != H5_SIZEOF_INT
+#ifndef H5_LDOUBLE_TO_LONG_SPECIAL
if (test_values != TEST_SPECIAL && test_values != TEST_NORMAL) {
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_LONG);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_ULONG);
}
else {
+#ifndef H5_DISABLE_SOME_LDOUBLE_CONV
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_LONG);
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_ULONG);
+#endif
+ }
+#else
+ {
+ char str[256]; /*string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s %s -> %s conversions", name, "long double",
+ "(unsigned) long");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to the special algorithm of hardware conversion.");
}
+#endif
#endif /*H5_SIZEOF_LONG!=H5_SIZEOF_INT */
#if H5_SIZEOF_LONG_LONG != H5_SIZEOF_LONG
+#ifdef H5_LDOUBLE_TO_LLONG_ACCURATE
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_LLONG);
+#else /*H5_LDOUBLE_TO_LLONG_ACCURATE*/
+ {
+ char str[256]; /*string */
+
+ HDsnprintf(str, sizeof(str), "Testing %s %s -> %s conversions", name, "long double", "long long");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to hardware conversion error.");
+ }
+#endif /*H5_LDOUBLE_TO_LLONG_ACCURATE*/
+#if defined(H5_LDOUBLE_TO_LLONG_ACCURATE)
nerrors += test_conv_int_fp(name, test_values, H5T_NATIVE_LDOUBLE, H5T_NATIVE_ULLONG);
-#endif /* H5_SIZEOF_LONG_LONG != H5_SIZEOF_LONG */
+#else /*H5_LDOUBLE_TO_LLONG_ACCURATE*/
+ {
+ char str[256]; /*string */
-#endif /* H5_SIZEOF_LONG_DOUBLE != H5_SIZEOF_DOUBLE */
- } /* end for */
+ HDsnprintf(str, sizeof(str), "Testing %s %s -> %s conversions", name, "long double",
+ "unsigned long long");
+ HDprintf("%-70s", str);
+ SKIPPED();
+ HDputs(" Test skipped due to hardware conversion error.");
+ }
+#endif /*H5_LDOUBLE_TO_LLONG_ACCURATE*/
+#endif
+#endif
+ } /* end for */
return nerrors;
}
generated by cgit v0.12 at 2024-11-04 21:41:28 (GMT)