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2079 :: Choice of printf implementation?

• bobg (orginal) [2016-02-29T00:08:49+01:00] view original

  Both of these constructions of printf will compile and work. Is there any reason to prefer one over the other? (smaller executable?)

  proc printf(formatstr: cstring) {.header: "<stdio.h>", varargs.}
  
  proc printf(formatstr: cstring) {.importc: "printf", varargs,
                                    header: "<stdio.h>".}

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• ByrsH (orginal) [2016-02-29T04:50:27+01:00] view original

  if there is no "importc: "printf"" in the pragma, so the procedure's name has to "printf". On the contrary, you can free named the procedure's name. For example:

  
  proc printf(formatstr: cstring) {.header: "<stdio.h>", varargs.}
  proc printf2(formatstr: cstring) {.header: "<stdio.h>",
                                        importc: "printf", varargs.}
  var x = 3
  printf("%d", x)
  printf2("\n%d", x+1)
  Run

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