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| author | Jarkko Hietaniemi <jhi@iki.fi> | 2015-06-10 22:05:48 -0400 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2015-06-12 09:57:16 -0400 |
| commit | ed3917fd69b234bb5614cb9aed93d62238e3dcb8 (patch) | |
| tree | b0af6a15d9b39773de1a885aa623d3dcc7d8766e /win32/config_H.vc | |
| parent | 44521f3a1782026b7d25cc55af459c3e28cc9bdd (diff) | |
| download | perl-ed3917fd69b234bb5614cb9aed93d62238e3dcb8.tar.gz | |
infnan: Configure scan for fp mantissa bytes
Diffstat (limited to 'win32/config_H.vc')
| -rw-r--r-- | win32/config_H.vc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/win32/config_H.vc b/win32/config_H.vc index 77e38f8a74..e945b3f42d 100644 --- a/win32/config_H.vc +++ b/win32/config_H.vc @@ -2684,6 +2684,25 @@ #define LONGDBLINFBYTES 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x7f /**/ #define LONGDBLNANBYTES 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f /**/ +/* DOUBLEMANTBITS: + * This symbol, if defined, tells how many mantissa bits + * there are in double precision floating point format. + * Note that this is usually DBL_MANT_DIG minus one, since + * with the standard IEEE 754 formats DBL_MANT_DIG includes + * the implicit bit, which doesn't really exist. + */ +#define DOUBLEMANTBITS 52 + +/* LONGDBLMANTBITS: + * This symbol, if defined, tells how many mantissa bits + * there are in long double precision floating point format. + * Note that this can be LDBL_MANT_DIG minus one, + * since LDBL_MANT_DIG can include the IEEE 754 implicit bit. + * The common x86-style 80-bit long double does not have + * an implicit bit. + */ +#define LONGDBLMANTBITS 52 + /* EBCDIC: * This symbol, if defined, indicates that this system uses * EBCDIC encoding. |