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| author | Ben Pfaff <blp@nicira.com> | 2011-04-01 10:20:17 -0700 |
|---|---|---|
| committer | Ben Pfaff <blp@nicira.com> | 2011-04-04 10:58:54 -0700 |
| commit | 67a51a1d851df25eebc676cf24bbb0f821d1c736 (patch) | |
| tree | 418339101ae358aa77014b492d29c67d6a0f060d /lib/type-props.h | |
| parent | fe1e967e3bc6c04f773b150fbb358b2350d0ad8c (diff) | |
| download | openvswitch-67a51a1d851df25eebc676cf24bbb0f821d1c736.tar.gz | |
type-props: New macro for estimating length of a decimal integer.
Diffstat (limited to 'lib/type-props.h')
| -rw-r--r-- | lib/type-props.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/type-props.h b/lib/type-props.h index efaf4a5de..922504174 100644 --- a/lib/type-props.h +++ b/lib/type-props.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2008 Nicira Networks. + * Copyright (c) 2008, 2011 Nicira Networks. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -29,4 +29,11 @@ ? ~(~(TYPE)0 << TYPE_VALUE_BITS(TYPE)) \ : (TYPE)-1) +/* Number of decimal digits required to format an integer of the given TYPE. + * Includes space for a sign, if TYPE is signed, but not for a null + * terminator. + * + * The value is an overestimate. */ +#define INT_STRLEN(TYPE) (TYPE_IS_SIGNED(TYPE) + TYPE_VALUE_BITS(TYPE) / 3 + 1) + #endif /* type-props.h */ |