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de8a5b7810
* configure.in: Add configuration test for long double type existing
and set flag _HAVE_LONG_DOUBLE if true. Fix INIT_ARRAY (.init_array)
and _LDBL_EQ_DBL tests to not link so that will work with
cross-compilers.
* configure: Regenerated.
* Makefile.in: Ditto.
* newlib.hin: Add _HAVE_LONG_DOUBLE flag.
* libc/include/math.h: Change non-builtin defines for HUGE_VAL,
HUGE_VALF, and HUGE_VALL to be constant expressions. Add definitions
for the non-builtin case for INFINITY and NAN. Gate HUGE_VALL and
union __ldmath definitions with (new) _HAVE_LONG_DOUBLE.
*libm/common/s_infconst.c: Change definitions to use values from
float.h instead of non-so-portable integer forms. Mark as being
deprecated (because now removed from math.h, are not used anywhere
in Newlib, itself).
22 lines
688 B
C
22 lines
688 B
C
/* Infinity as a constant value. This is used for HUGE_VAL.
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* Added by Cygnus Support.
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*/
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#include <float.h>
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#include <math.h>
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/* These should never actually be used any longer, as their use in math.h was
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* removed, but they are kept here in case a user was pointing to them.
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* FIXME: deprecate these identifiers and then delete them. */
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/* Float version of infinity. */
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const union __fmath __infinityf[1] = { { FLT_MAX+FLT_MAX } };
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/* Double version of infinity. */
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const union __dmath __infinity[1] = { { DBL_MAX+DBL_MAX } };
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/* Long double version of infinity. */
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#if defined(_HAVE_LONG_DOUBLE)
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const union __ldmath __infinityld[1] = { { LDBL_MAX+LDBL_MAX } };
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#endif
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