How to Get the Pointer of a Map to pass it to a Prototype
Posted: Mon Jan 12, 2026 6:03 pm
I try to use the PB SDK Functions from Map.h
But I can't get the Pointer of the Map correctly.
Here is the code what shows what I try to do! (It's just a proof of concept to learn what is possible!)
But I can't get the Pointer of the Map correctly.
Here is the code what shows what I try to do! (It's just a proof of concept to learn what is possible!)
Code: Select all
EnableExplicit
Prototype Map_Hash(*Str)
Global Map_Hash.Map_Hash
Prototype Map_HashCaseInsensitive(*Str)
Global Map_HashCaseInsensitive.Map_HashCaseInsensitive
Prototype Map_FindNumericMapElement(*PB_Map, intKey)
Global Map_FindNumericMapElement.Map_FindNumericMapElement
Prototype AddNumericMapElement(*PB_Map, intKey);
Global AddNumericMapElement.AddNumericMapElement
; to find the defintions of this SDK Functions you have to
; go to PureBasic\SDK\[C, ViusalC]\PureLibraries. There you
; can find the offical C-Header files!
CompilerIf #PB_Compiler_OS = #PB_OS_Windows
Import ""
; Map.h
PB_Map_Hash(*Str)
PB_Map_HashCaseInsensitive(*Str)
PB_FindNumericMapElement(*PB_Map, intKey)
PB_AddNumericMapElement(*PB_Map, intKey);
EndImport
CompilerElse
ImportC ""
; Map.h
PB_Map_Hash(*Str)
PB_Map_HashCaseInsensitive(*Str)
PB_FindNumericMapElement(*PB_Map, intKey);
PB_AddNumericMapElement(*PB_Map, intKey);
EndImport
CompilerEndIf
Map_Hash = @PB_Map_Hash()
Map_HashCaseInsensitive = @PB_Map_HashCaseInsensitive()
Map_FindNumericMapElement = @PB_FindNumericMapElement()
AddNumericMapElement = @PB_AddNumericMapElement()
NewMap City.s()
; how to get the Map-Pointer correctly???
; Define *pCity = City() ; Error "Trying to write a String into a numerical value"
Define *pCity = @City() ; Error "The Map doesn't have a current Element!"
Define c1.s = "London"
Define c2.s = "Berlin"
Define c3.s = "Tokio"
Define c4.s = "Rom"
Define c5.s = "Barcelona"
City(c1) = c1
City(c2) = c2
City(c3) = c3
City(c4) = c4
City(c5) = c5
ForEach City()
Debug City()
Next
Define hash
Define *res.String
hash = Map_HashCaseInsensitive(@c1)
Debug hash
; how to pass the Map-Pointer correctly???
*res = Map_FindNumericMapElement(*pCity, hash) ; ???
*res = Map_FindNumericMapElement(City(), hash) ; Don't work!!!
Debug *res\s ; Expect to see "London"