xsharp.eu

Zdeněk Krejčí wrote:Is it possible to use generics like c#?
Zdeněk

LOCAL x AS List<String>
x := List<String>{}
x:Add("abc")
x:Add(123) // Error at compile time

atlopes wrote:

In VFP, in general, any function that accepts a .NULL. for one of its arguments returns .NULL. as a result.
...
Obvious exceptions are NVL(), ISNULL(), and VARTYPE().

"most" would be better. There are string functions not following that rule, but they are few - I had mentioned that missing Nullcheck in xSharp quite a while back. Uncertain if those should be implemented only in vfp dialect calling base implementation, base implementation needs to be enhanced or new implementation (for 1-3 liners, cutting out method call) are appropriate. Will check when new version is available to non-FoXers and if not done perhaps do it in 1 swoop for those I calling my attention early on.

regards
thomas

robert wrote:The string type in .Net has a Chars property which is an indexable collection of characters in the string. No allocation is needed as far as I know to address individual characters .
The string class is written in CPP:
You can see here that it simply indexes the character in the buffer
https://github.com/dotnet/coreclr/blob/ ... ve.cpp#L52

The string type in .Net has a Chars property which is an indexable collection of characters in the string. No allocation is needed as far as I know to address individual characters .

Case dataType == "C"

  LOCAL emptyChars = " " + CHR(9) + CHR(10) + CHR(13) AS String
  LOCAL testString = uValue.ToString() AS String

  FOR VAR idx = 0 TO testString.Length - 1
    If (emptyChars.IndexOf(testString.Chars[idx]) == -1)
      Return uValue
    Endif
  NEXT

  Return uReturnValue

Function Evl (sValue AS String, uReturnValue)

  LOCAL emptyChars = " " + CHR(9) + CHR(10) + CHR(13) AS String

  FOR VAR idx = 0 TO sValue.Length - 1
    If (emptyChars.IndexOf(sValue.Chars[idx]) == -1)
      Return sValue
    Endif
  NEXT

  Return uReturnValue

End Function

? .NULL.