diff options
Diffstat (limited to 'config/cmake')
-rw-r--r-- | config/cmake/ConfigureChecks.cmake | 8 | ||||
-rw-r--r-- | config/cmake/ConversionTests.c | 79 | ||||
-rw-r--r-- | config/cmake/H5pubconf.h.in | 4 |
3 files changed, 0 insertions, 91 deletions
diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake index e8951c6..2b4c4a3 100644 --- a/config/cmake/ConfigureChecks.cmake +++ b/config/cmake/ConfigureChecks.cmake @@ -259,14 +259,6 @@ ENDMACRO (H5MiscConversionTest) #----------------------------------------------------------------------------- # ---------------------------------------------------------------------- -# Set the flag to indicate that the machine can convert from -# 'unsigned long long' to 'long double' without precision loss. -# (This flag should be set for all machines, except for FreeBSD(sleipnir) -# where the last 2 bytes of mantissa are lost when compiler tries to do -# the conversion, and Cygwin where compiler doesn't do rounding correctly.) -# -H5ConversionTests (H5_ULLONG_TO_LDOUBLE_PRECISION "Checking IF converting unsigned long long to long double with precision") -# ---------------------------------------------------------------------- # Set the flag to indicate that the machine can handle overflow converting # all floating-point to all integer types. # (This flag should be set for all machines, except for Cray X1 where diff --git a/config/cmake/ConversionTests.c b/config/cmake/ConversionTests.c index 3003ef2..9a81a20 100644 --- a/config/cmake/ConversionTests.c +++ b/config/cmake/ConversionTests.c @@ -266,82 +266,3 @@ main () #endif -#ifdef H5_ULLONG_TO_LDOUBLE_PRECISION_TEST - -#include <stddef.h> -#include <stdlib.h> -#include <string.h> - -int main(void) -{ - /* General variables */ - int endian; - int tst_value = 1; - int ret = 0; - - /* For FreeBSD */ - unsigned long long l = 0xa601e80bda85fcefULL; - long double ld; - unsigned char *c1, *c2; - size_t size; - - /* For Cygwin */ - unsigned long long l_cyg = 0xfffffffffffffff0ULL; - long double ld_cyg; - unsigned char *c2_cyg; - size_t size_cyg; - - - /* Determine this system's endianess */ - c1 = (unsigned char*)calloc(1, sizeof(int)); - memcpy((void*)c1, &tst_value, sizeof(int)); - if(c1[0]==1) - endian = 0; /* little endian */ - else - endian = 1; /* big endian */ - - /* For FreeBSD */ - size = sizeof(long double); - memset(&ld, 0, size); - ld = (long double)l; - - c2 = (unsigned char*)calloc(1, size); - memcpy((void*)c2, &ld, size); - - /* Test if the last 2 bytes of mantissa are lost. Mainly for FreeBSD on Intel - * architecture(sleipnir) where it happens. */ - /*if(endian==0 && c2[0]==0 && c2[1]==0)*/ /*little endian*/ - if(endian==0 && c2[0]==0) { /*little endian*/ - ret = 1; - goto done; - } - - /* For Cygwin */ - size_cyg = sizeof(long double); - memset(&ld_cyg, 0, size); - ld_cyg = (long double)l_cyg; - - c2_cyg = (unsigned char*)calloc(1, size_cyg); - memcpy((void*)c2_cyg, &ld_cyg, size_cyg); - - /* Test if the last 4 bytes(roughly) of mantissa are rounded up. Mainly for Cygwin - * where the values like 0xffffffffffffffff, 0xfffffffffffffffe, ..., - * 0xfffffffffffff000 ... are rounded up as 0x0000403f8000000000000000 - * instead of 0x0000403effffffffffffffff, 0x0000403efffffffffffffffe, ..., - * 0x0000403efffffffffffff000 ... - */ - if(endian==0 && c2_cyg[0]==0 && c2_cyg[1]==0 && c2_cyg[2]==0 && c2_cyg[3]==0) - ret = 1; - -done: - if(c1) - free(c1); - if(c2) - free(c2); - if(c2_cyg) - free(c2_cyg); - exit(ret); -} - -#endif - diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in index aa96d1c..3b46d62 100644 --- a/config/cmake/H5pubconf.h.in +++ b/config/cmake/H5pubconf.h.in @@ -646,10 +646,6 @@ /* Define to 1 if your <sys/time.h> declares `struct tm'. */ #cmakedefine H5_TM_IN_SYS_TIME @H5_TM_IN_SYS_TIME@ -/* Define if your system can convert unsigned long long to long double with - correct precision. */ -#cmakedefine H5_ULLONG_TO_LDOUBLE_PRECISION @H5_ULLONG_TO_LDOUBLE_PRECISION@ - /* Define using v1.6 public API symbols by default */ #cmakedefine H5_USE_16_API_DEFAULT @H5_USE_16_API_DEFAULT@ |