On 19.11.2014 17:13, Didier Guillevic wrote: > Hi, > > I want to add a ‘weight’ edge attribute with weights ranging from 1 to 100 > (values that fit in an unsigned char). In order to save some space, I would > like to store those weights in an uint8_t instead of int16_t. The uint8_t is > accessible through the ‘bool’ type name for the Property Maps. > > - I checked that serializing and de-serializing ‘bool’ type names with values > in the range [1-100] works fine. > - I also checked that running PageRank using the ‘weight’ edge property gives > the same result whether the weights ([1-100]) are stored as type ‘bool’ or > type ‘int16_t’. > > My question is it safe to assume that it will always work. Do some of the > algorithms check the type name of the property and seeing ‘bool’, those > algorithms could decide to use true/false values rather than an integer in > range [0-255].
Yes, this is totally safe. "bool" is a just a synonym to "uint8_t" everywhere in the library, as far as property maps are concerned. Best, Tiago -- Tiago de Paula Peixoto <[email protected]>
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