diff options
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/configure.ac b/configure.ac index 4933557..63cd4fc 100644 --- a/configure.ac +++ b/configure.ac @@ -2444,87 +2444,6 @@ esac ## ---------------------------------------------------------------------- ## Set the flag to indicate that the machine can accurately convert -## 'float' or 'double' to 'unsigned long long' values. -## (This flag should be set for all machines, except for PGI compiler -## where round-up happens when the fraction of float-point value is greater -## than 0.5. -## -AC_MSG_CHECKING([if accurately roundup converting floating-point to unsigned long long values]) - -AC_CACHE_VAL([hdf5_cv_fp_to_ullong_accurate], - [AC_TRY_RUN([ - int main(void) - { - float f = 111.60f; - double d = 222.55L; - unsigned long long l1 = (unsigned long long)f; - unsigned long long l2 = (unsigned long long)d; - int ret = 0; - - if(l1 == 112) - ret = 1; - if(l2 == 223) - ret = 1; - -done: - exit(ret); - } - ], [hdf5_cv_fp_to_ullong_accurate=yes], [hdf5_cv_fp_to_ullong_accurate=no],)]) - -if test ${hdf5_cv_fp_to_ullong_accurate} = "yes"; then - AC_DEFINE([FP_TO_ULLONG_ACCURATE], [1], - [Define if your system roundup accurately converting floating-point to unsigned long long values.]) - AC_MSG_RESULT([yes]) -else - AC_MSG_RESULT([no]) -fi - -## ---------------------------------------------------------------------- -## Set the flag to indicate that the machine can accurately convert -## 'float', 'double' or 'long double' to 'unsigned long long' values. -## (This flag should be set for all machines, except for HP-UX machines -## where the maximal number for unsigned long long is 0x7fffffffffffffff -## during conversion. -## -AC_MSG_CHECKING([if right maximum converting floating-point to unsigned long long values]) - -AC_CACHE_VAL([hdf5_cv_fp_to_ullong_right_maximum], - [AC_TRY_RUN([ - int main(void) - { - float f = 9701917572145405952.00f; - double d1 = 9701917572145405952.00L; - long double d2 = 9701917572145405952.00L; - double d3 = 2e40L; - unsigned long long l1 = (unsigned long long)f; - unsigned long long l2 = (unsigned long long)d1; - unsigned long long l3 = (unsigned long long)d2; - unsigned long long l4; - unsigned long long l5 = 0x7fffffffffffffffULL; - int ret = 0; - - if(l1 <= l5 || l2 <= l5 || l3 <= l5) - ret = 1; - - l4 = (unsigned long long)d3; - if(l4 <= l5) - ret = 1; - -done: - exit(ret); - } - ], [hdf5_cv_fp_to_ullong_right_maximum=yes], [hdf5_cv_fp_to_ullong_right_maximum=no],)]) - -if test ${hdf5_cv_fp_to_ullong_right_maximum} = "yes"; then - AC_DEFINE([FP_TO_ULLONG_RIGHT_MAXIMUM], [1], - [Define if your system has right maximum convert floating-point to unsigned long long values.]) - 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 int' values. (This flag should be set for ## all machines, except for some Intel compilers on some Linux.) ## |