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float-m68k.h: Define DECIMAL_DIG and FLT_EVAL_METHOD for C99.

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* config/float-m68k.h: Define DECIMAL_DIG and FLT_EVAL_METHOD for
	C99.

From-SVN: r45577
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Andreas Schwab 2001-09-13 09:53:28 +00:00 committed by Andreas Schwab
parent 133d313361
commit 08ed72a9f1
2 changed files with 32 additions and 0 deletions
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@ -1,3 +1,8 @@
2001-09-13 Andreas Schwab <schwab@suse.de>
* config/float-m68k.h: Define DECIMAL_DIG and FLT_EVAL_METHOD for
C99.
2001-09-13 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (small_symbolic_operand): New.

27
gcc/config/float-m68k.h
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@ -94,7 +94,34 @@
#undef LDBL_MAX_10_EXP
#define LDBL_MAX_10_EXP 4932
#if __STDC_VERSION__ >= 199901L
/* The floating-point expression evaluation method.
-1 indeterminate
0 evaluate all operations and constants just to the range and
precision of the type
1 evaluate operations and constants of type float and double
to the range and precision of the double type, evaluate
long double operations and constants to the range and
precision of the long double type
2 evaluate all operations and constants to the range and
precision of the long double type
*/
/* ??? FLT_EVAL_METHOD depends on TARGET_68040_ONLY. We do not currently
have a preprocessor token that we can use to tell that this is on. */
# undef FLT_EVAL_METHOD
# define FLT_EVAL_METHOD -1
/* Number of decimal digits to enable rounding to the given number of
decimal digits without loss of precision.
if FLT_RADIX == 10^n: #mantissa * log10 (FLT_RADIX)
else : ceil (1 + #mantissa * log10 (FLT_RADIX))
where #mantissa is the number of bits in the mantissa of the widest
supported floating-point type.
*/
# undef DECIMAL_DIG
# define DECIMAL_DIG 21
#endif /* C99 */
#endif /* _FLOAT_H_ */