[igraph] bipartite.projection : is this an error ?

[Yannick Rochat]

Dear Gabor,

Everytime I execute the "bipartite.projection" function, I receive this error (in red). 

library(igraph)
g <- graph.formula(a-b-c-d-a-e)
is.bipartite(g)$res #TRUE
V(g)$type<-is.bipartite(g)$type
bipartite.projection(g)
#$proj1
#Vertices: 2 
#Edges: 1 
#Directed: FALSE 
#Edges:
#    e       
#e [0] 0 -- 1
#$proj2
#Vertices: 3 
#Edges: 3 
#Directed: FALSE 
#Edges:         
#[0] 0 -- 1
#[1] 0 -- 2
#[2] 1 -- 2

R(309,0xa08ae720) malloc: *** error for object 0x164fdc8: pointer being freed was not allocated


Do I have to care about it ? The results returned seem fine (at least with small graphs…). I'm using igraph 0.5.2 with R 2.9.1 and macos 10.5.8.

Thanks in advance !

Best,


Yannick Rochat - IMA - Université de Lausanne
http://www.unil.ch/unisciences/YannickRochat