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h5read opening a ~50MB hdf5 file leads to Segmentation fault

> library(rhdf5)
> test2=h5read("tmp/Daily.h5", "y2014", bit64conversion="bit64")
Attaching package bit
package:bit (c) 2008-2012 Jens Oehlschlaegel (GPL-2)
creators: bit bitwhich
coercion: as.logical as.integer as.bit as.bitwhich which
operator: ! & | xor != ==
querying: print length any all min max range sum summary
bit access: length<- [ [<- [[ [[<-
for more help type ?bit

Attaching package:bitThe following object is masked frompackage:base:

    xor

Attaching package bit64
package:bit64 (c) 2011-2012 Jens Oehlschlaegel (GPL-2 with commercial restrictions)
creators: integer64 seq :
coercion: as.integer64 as.vector as.logical as.integer as.double as.character as.bin
logical operator: ! & | xor != == < <= >= >
arithmetic operator: + - * / %/% %% ^
math: sign abs sqrt log log2 log10
math: floor ceiling trunc round
querying: is.integer64 is.vector [is.atomic} [length] is.na format print
aggregation: any all min max range sum prod
cumulation: diff cummin cummax cumsum cumprod
access: length<- [ [<- [[ [[<-
combine: c rep cbind rbind as.data.frame
for more help type ?bit64

Attaching package:bit64The following object is masked frompackage:bit:

    still.identical

The following objects are masked frompackage:base:

    :, %in%, is.double, match, order, rank

Error: segfault from C stack overflow

Not setting bit64conversion="bit64" will avoid this segfault

h5read can not read int64 HDF5 files

The function h5read can not properly import int64 data from HDF5 files, even when its parameter bit64conversion has been explicitly specified as "bit64" as suggested by the function's warning output, it will still force convert int64 data to int32 (R only has int32 for integer type, but int64 is supported by bit64 package, which rhdf5 package is capable of using. )

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