diff options
Diffstat (limited to 'misc/qefgcvt.c')
| -rw-r--r-- | misc/qefgcvt.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/misc/qefgcvt.c b/misc/qefgcvt.c index faf788aa5d..63fc764121 100644 --- a/misc/qefgcvt.c +++ b/misc/qefgcvt.c @@ -28,8 +28,16 @@ #define MAXDIG (NDIGIT_MAX + 12) #if LDBL_MANT_DIG == 64 # define NDIGIT_MAX 21 +#elif LDBL_MANT_DIG == 53 +# define NDIGIT_MAX 17 +#elif LDBL_MANT_DIG == 113 +# define NDIGIT_MAX 36 +#elif LDBL_MANT_DIG == 56 +# define NDIGIT_MAX 18 #else -/* See IEEE 854 5.6, table 2 for this formula. */ +/* See IEEE 854 5.6, table 2 for this formula. Unfortunately we need a + compile time constant here, so we cannot use it. */ +# error "NDIGIT_MAX must be precomputed" # define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0))) #endif |