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author | Dana Robinson <derobins@hdfgroup.org> | 2015-09-11 04:35:01 (GMT) |
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committer | Dana Robinson <derobins@hdfgroup.org> | 2015-09-11 04:35:01 (GMT) |
commit | bac113b0050028d6eb27351f2755ff68ba0d2668 (patch) | |
tree | 7035763117a5ac94c4f478615a84d217e99b8307 /configure | |
parent | 6bd0add89a6ae02e66b6b1cae68d58b6798a825a (diff) | |
download | hdf5-bac113b0050028d6eb27351f2755ff68ba0d2668.zip hdf5-bac113b0050028d6eb27351f2755ff68ba0d2668.tar.gz hdf5-bac113b0050028d6eb27351f2755ff68ba0d2668.tar.bz2 |
[svn-r27757] Bring r26546 from trunk
Convert AC_TRY_RUN to AC_RUN_IFELSE, for the LDOUBLE_TO_LONG_SPECIAL and
LONG_TO_LDOUBLE_SPECIAL checks.
Tested on: h5committest
Diffstat (limited to 'configure')
-rwxr-xr-x | configure | 237 |
1 files changed, 132 insertions, 105 deletions
@@ -1,5 +1,5 @@ #! /bin/sh -# From configure.ac Id: configure.ac 27743 2015-09-10 11:11:32Z derobins . +# From configure.ac Id: configure.ac 27756 2015-09-11 03:38:22Z derobins . # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69 for HDF5 1.8.16-snap16. # @@ -27296,59 +27296,72 @@ else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - int 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 0x 00 47 33 ce 17 af 22 82 - * and gets wrong value 20041683600089730 on the IBM Power6 Linux. - * But the IBM Power6 Linux 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; + #include <string.h> - ull = (unsigned long)ld; - memcpy(s2, &ull, 8); +#ifdef FC_DUMMY_MAIN +#ifndef FC_DUMMY_MAIN_EQ_F77 +# ifdef __cplusplus + extern "C" +# endif + int FC_DUMMY_MAIN() { return 1; } +#endif +#endif +int +main () +{ - /* 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; + 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 0x 00 47 33 ce 17 af 22 82 + * and gets wrong value 20041683600089730 on the IBM Power6 Linux. + * But the IBM Power6 Linux 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; + } } - } + exit(ret); - done: - exit(ret); - } + ; + return 0; +} _ACEOF if ac_fn_c_try_run "$LINENO"; then : @@ -27401,61 +27414,75 @@ else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - int 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. - * The IBM Power6 Linux 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. - * The IBM Power6 Linux 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); - } + #include <string.h> + +#ifdef FC_DUMMY_MAIN +#ifndef FC_DUMMY_MAIN_EQ_F77 +# ifdef __cplusplus + extern "C" +# endif + int FC_DUMMY_MAIN() { return 1; } +#endif +#endif +int +main () +{ + + 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. + * The IBM Power6 Linux 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. + * The IBM Power6 Linux 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; + } + exit(ret); + + ; + return 0; +} _ACEOF if ac_fn_c_try_run "$LINENO"; then : |