Hello Jacques, I found this one curious so quickly write the MB program below. It seems to work fine on Pro v4.5, v6.0 and v7.0. Sorry, don't have v6.5 installed. I presume the variable used for argument 2 to the Mid$() function is a smallint or integer?
Regards, Warren Vick Europa Technologies Ltd. http://www.europa-tech.com ' MID_TEST.MB - Test the argument ranges of the Mid$() function. ' Definitions ' Includes include "mapbasic.def" include "icons.def" include "menu.def" ' Declarations declare sub main ' Variables sub main dim BigString as string dim i as integer dim j as smallint CLS BigString = string$(32767, "x") ' Largest string possible print "BigString has "+len(BigString)+" characters, all x's." ' With a literal print "Mid$(BigString, 29700, 10) = "+chr$(34)+Mid$(BigString, 29700, 10)+chr$(34) ' With an integer variable i = 29700 print "i (integer) = "+i print "Mid$(BigString, i, 10) = "+chr$(34)+Mid$(BigString, i, 10)+chr$(34) ' With a smallint variable j = 29700 print "j (smallint) = "+j print "Mid$(BigString, j, 10) = "+chr$(34)+Mid$(BigString, j, 10)+chr$(34) end sub ' End -----Original Message----- From: Jacques Paris [mailto:[EMAIL PROTECTED] Sent: 20 November 2003 22:49 To: MIL Subject: MI-L limit in mid$() size The length of a string variable into which I read the record of a file is of 32766. I use the mid$() function to extract bits and pieces. When the start parameter (second argument) reaches 29696, there is an error message "Overflow Mid$; argument 2 has invalid type". As the same formula has worked previous to the break over 1100 times, I would guess that it is a question of the size of the argument. MI 6.5 Any info of the subject? Jacques Paris e-mail [EMAIL PROTECTED] MapBasic-MapInfo support http://www.paris-pc-gis.com --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 9250 --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 9254
