'sw_inputDataFromFiles' does not correctly read CO2 information from siteparam.in

[dschlaep]

path_demo3 <- system.file("extdata", "example3", package = "rSOILWAT2")
sw_in6 <- sw_inputDataFromFiles(dir = path_demo3, files.in = "files_v31.in")

swCarbon_Scenario(sw_in6)
[1] "Default"
swCarbon_Use_Bio(sw_in6)
[1] 0
swCarbon_Use_WUE(sw_in6)
[1] 0

Even though the input file has these flags set to 1 and the scenario is "RCP85":

readLines(system.file("extdata", "example3", "Input", "siteparam_v26.in", package = "rSOILWAT2"))[65:71]
[1] "# ---- CO2 Settings ----"               
[2] "# Use biomass multiplier"               
[3] "1"                                      
[4] "# Use water-usage efficiency multiplier"
[5] "1"                                      
[6] "# Scenario"                             
[7] "RCP85"       

[dschlaep]

sw_in6 <- sw_inputDataFromFiles(dir = path_demo3, files.in = "files_v31.in")

'SW_SIT_read': use_bio_mult = 1
'SW_SIT_read': use_wue_mult = 1
'SW_SIT_read': scenario = RCP85
'onSet_swCarbon': both flags turned off (use_bio_mult = 0; use_wue_mult = 0)

==> 'SW_SIT_read' reads the correct values, but they are lost by the time function onSet_swCarbon is reached

[dschlaep]

The values are lost because of the order functions are called:
The function onGetInputDataFromFiles has the following order of calls

1. SW_CTL_read_inputs_from_disk() --> SW_SIT_read() // reads values from file into C variable SW_Carbon
2. PROTECT(SW_DataList = NEW_OBJECT(swInputData)) // create S4 class rSOILWAT2 input object
3. onGet_SW_CARBON() // create S4 class variable swCarbon
4. onSet_swCarbon() // copy values of just defined (and empty) variable swCarbon into C variable SW_Carbon thereby overwriting any values that were read in from files on disk

[dschlaep]

No other onSet_*/onGet_* pair of function is coded such that onGet_* calls onSet_* except the onGet_SW_CARBON.

[dschlaep]

The onGet_* functions copy the values of a C variable into the R-typed (S4-classed rSOILWAT2) variable.
The onSet_* functions copy the values of a R-typed (S4-classed rSOILWAT2) variable into the C variable.