Integer detection fails when resulting array used in output

[richfitz]

odin::odin({
  update(x) <- 1
  initial(x) <- 1
 
  y[] <- user()
  dim(y) <- user()
  v <- user()

  z <- y[step - v]
  output(z) <- z # comment this line out and it compiles
})

[richfitz]

Integer detection also failing when input is user?

via Joel:

sprayChemical <- user()
# later
rho_IRS2 <- rhovec2[sprayChemical]

odin_model_emanators_IRS.c:1202:77: error: array subscript is not an integer
   odin_model_emanators_IRS_p->rho_IRS2 = odin_model_emanators_IRS_p->rhovec2[odin_model_emanators_IRS_p->sc - 1];

[jhellewell14]

sc2 <- 1
rho_IRS1 <- rhovec1[sc2]
# gives 
odin_model_emanators_IRS.c:1210:77: error: array subscript is not an integer
   odin_model_emanators_IRS_p->rho_IRS1 = odin_model_emanators_IRS_p->rhovec1[odin_model_emanators_IRS_p->sc2 - 1];

From compiling this model: https://github.com/mrc-ide/deterministic-malaria-model/blob/joel/inst/extdata/odin_model_emanators_IRS.R

[richfitz]

Solution:

odin({
  update(x) <- 1
  initial(x) <- 1
 
  y[] <- user()
  dim(y) <- user()
  v <- user(integer = TRUE)

  z <- y[step - v]
  output(z) <- z # comment this line out and it compiles
})