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| author | Ulrich Drepper <drepper@redhat.com> | 1999-07-29 22:34:58 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-29 22:34:58 +0000 |
| commit | f9a2a6369d67788a287a985a2d231bb8e3ccd60d (patch) | |
| tree | fc23f678bc8a12e4023a4a6bcca5f3dba6e51f44 /misc | |
| parent | dbc75fb3ccd8626ddedd2fe0f3621166059a8c80 (diff) | |
| download | glibc-f9a2a6369d67788a287a985a2d231bb8e3ccd60d.tar.gz glibc-f9a2a6369d67788a287a985a2d231bb8e3ccd60d.tar.xz glibc-f9a2a6369d67788a287a985a2d231bb8e3ccd60d.zip | |
Update.
1999-07-29 Andreas Schwab <schwab@suse.de> * misc/efgcvt.c (NDIGIT_MAX): Provide precomputed constants for all floating point formats supported by gcc. Error out for unhandled precisions. * misc/efgcvt_r.c (NDIGIT_MAX): Likewise. * misc/qefgcvt.c (NDIGIT_MAX): Likewise. * misc/qefgcvt_r.c (NDIGIT_MAX): Likewise.
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/efgcvt.c | 8 | ||||
| -rw-r--r-- | misc/efgcvt_r.c | 8 | ||||
| -rw-r--r-- | misc/qefgcvt.c | 10 | ||||
| -rw-r--r-- | misc/qefgcvt_r.c | 10 |
4 files changed, 32 insertions, 4 deletions
diff --git a/misc/efgcvt.c b/misc/efgcvt.c index dc711c63dc..37b4bc0163 100644 --- a/misc/efgcvt.c +++ b/misc/efgcvt.c @@ -33,8 +33,14 @@ # define MAXDIG (NDIGIT_MAX + 3) # if DBL_MANT_DIG == 53 # define NDIGIT_MAX 17 +# elif DBL_MANT_DIG == 24 +# define NDIGIT_MAX 9 +# elif DBL_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 * DBL_MANT_DIG + 1.0))) # endif #endif diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c index d73fd22f70..80770e6a82 100644 --- a/misc/efgcvt_r.c +++ b/misc/efgcvt_r.c @@ -32,8 +32,14 @@ # define FLOAT_NAME_EXT # if DBL_MANT_DIG == 53 # define NDIGIT_MAX 17 +# elif DBL_MANT_DIG == 24 +# define NDIGIT_MAX 9 +# elif DBL_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 * DBL_MANT_DIG + 1.0))) # endif #endif 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 diff --git a/misc/qefgcvt_r.c b/misc/qefgcvt_r.c index 5ff8110e3b..040193b612 100644 --- a/misc/qefgcvt_r.c +++ b/misc/qefgcvt_r.c @@ -26,8 +26,16 @@ #define FLOAT_NAME_EXT l #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 |