RE: How to check if a variable is a filevar
On Behalf Of Neil Charrington Is there a way of checking to see if a variable is an opened file variable? The the FileInfo() function will answer your question. Use the FINFO$IS.FILEVAR key. HTH, Gyle -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: problem with VLIST
Rados³aw Ryckowski wrote: I have external program which crash with fault 11, so I use VLIST and here is strange thig. Vlist give me information about length , object compilatr etc. but when try to list first line of code crash with fault 11. Layer type is Unknown. Universe verison is 9.6.1.9 OS version Tru64 Unix. Hello, Radek, Perhaps the object was compiled on a different type of processor. Try using fnuxi or format.conv on the program. Best regards, Gyle -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: [UV] Pass by value [was:Need/Want/Would like to know]
Hello, Stuart. I say this is a compiler flaw rather than a documentation flaw. While it may prove challenging to dig through the parse-tree to figure out when to make use of the implicit temporary, it should be done for matrix components as it is for scalars. The compiler can do it far more reliably for us than we can manually. Best regards, Gyle -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Stuart Boydell Sent: Wednesday, February 18, 2004 5:27 PM To: U2 Users Discussion List Subject: RE: [UV] Pass by value [was:Need/Want/Would like to know] [snip] So, to summarise, I feel my thesis is sound and the U2 developers should either amend the documentation of fix the compiler so that passing a matrix variable by value works. [snip] -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: [UV] Pass by value [was:Need/Want/Would like to know]
Hello, Stuart. Hmmm. The technique shown deals with string, real and whole number variables. What about files, subroutines, sockets, etc? And performing string concatenation would coerce numerics into strings, which may slow things further down stream. Best regards, Gyle -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Stuart Boydell Sent: Wednesday, February 18, 2004 6:20 PM To: U2 Users Discussion List Subject: RE: [UV] Pass by value [was:Need/Want/Would like to know] EQUATE CONST LIT ':' CALL xxx(CONST zzz(n)) Good call! [snip] -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
RE: Need/Want/Would like to know
Hello, Mike. I added a print X(100) following the Call in P1 and that fails too. I suppose that the X(100) element is being cleared before the assignment of A. However, as A is a pointer to X(100), both become cleared. Perhaps the move_matrix op-code should test if the r-value (e.g. A) resolves to the same l-value element (e.g. X(100)) and treat the statement as a no-op in such cases. One can short-circuit the problem by adding an intermediate variable, such as, C = A; X(100) = C, in P2. Interesting puzzle. I wonder if there is a GTAR on this? Best regards, Gyle -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Rajkowski Sent: Tuesday, February 17, 2004 9:17 AM To: U2 Users Discussion List Subject: Need/Want/Would like to know Someone came to me with the following code sample, and asked why this would happen, while I have some thoughts, I would like a more definitive answer (note no matter what the answer, I believe the solution is don't do that) Thanks, Mike On Universe 9.5: 04 ED BP P1 P2 SELECTed record name = P1. 6 lines long. : P 0001: * 0002: DIM X(100) 0003: MAT X = 0004: X(100) = 1 0005: CALL P2(X(100), MAT X) 0006: END Bottom at line 6. : EX SELECTed record name = P2. 13 lines long. : P 0001: SUBROUTINE P2(A, MAT X) 0002: DIM X(100) 0003: CRT 'A = ':A 0004: CRT 'X(100) = ':X(100) 0005: * 0006: CRT ; CRT SETTING X(100) = A 0007: X(100) = A 0008: CRT ; CRT NOW RE-CHECKING THE VALUES 0009: * 0010: CRT 'A = ':A 0011: CRT 'X(100) = ':X(100) 0012: RETURN 0013: END Bottom at line 13. : EX File name= BP Record name = RUN BP P1 A = 1 X(100) = 1 SETTING X(100) = A NOW RE-CHECKING THE VALUES A = Program P2: Line 10, Variable A previously undefined. Empty string used . X(100) = Program P2: Line 11, Variable $R0 previously undefined. Empty stri ng used. -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users
