[BUGZILLA #17327] Wrong integer display because of use of %ld

[MichaelChirico]

This is a follow-up of Bug 17292 Comment 7.

Using %ld for R_xlen_t doesn't give the desired result when the number is 2^31 or more for 64-bit R on Windows. On Windows, long is 32-bit.

Instances:

• function 'do_psort' in sort.c
  Example usage in R:
  res <- sort(integer(2^31), partial = 2^31+1)

• function 'inspect_tree' in inspect.c
  Example usage in R:
  .Internal(inspect(raw(2^31)))

For 32-bit R, in Rinternals.h, R_xlen_t is int and %d can be used.
For 64-bit R, in Rinternals.h, R_xlen_t is ptrdiff_t and %td can be used. Is it available everywhere?

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METADATA

• Bug author - Suharto Anggono
• Creation time - 2017-08-19 09:57:33 UTC
• Bugzilla link
• Status - UNCONFIRMED
• Alias - None
• Component - Windows GUI / Window specific
• Version - R-devel (trunk)
• Hardware - x86_64/x64/amd64 (64-bit) Windows 64-bit
• Importance - P5 minor
• Assignee - R-core
• URL -
• Modification time - 2019-04-05 18:19 UTC

[MichaelChirico]

Another instance:

• function 'do_nchar' in character.c
  Example usage in R:
  y <- "\xe7"
  Encoding(y) <- "bytes"
  x <- character(2^31)
  x[length(x)] <- y
  res <- nchar(x)

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METADATA

• Comment author - Suharto Anggono
• Timestamp - 2019-04-05 18:19:00 UTC