------------------------------------------------------------ [BUG/PRB.] VFP 9.0 FIX - FULLPATH() FUNCTION January 2024 ------------------------------------------------------------ CCB 1. BUG: In vfp9 (and vfp6, vfp7, vfp8), sometimes the FULLPATH("") function returns wrong result. 2. CAUSE: There are some BUGs in the following code. 3. RESOLUTION: We can write some code to fix the BUG. Fun435040 :: ; proc near cmp byte ptr [esi] , 05Ch ;0x00435040 : 803e5c je Label598a95 ;0x00435043 : 0f844c3a1600 ; ; ------------------------------------------------- ; VFP 9.0 FIX - FULLPATH() FUNCTION ; November 2023 ; ------------------------------------------------- ; CCB ; ; In vfp9, sometimes the FULLPATH("") function returns wrong result. ; ; 2023/11/19, by ccb ; cmp byte ptr [esi] , 00h je Label435052 Label435049 :: cmp byte ptr [ esi + 1 ] , 03Ah ;0x00435049 : 807e013a lea eax , dword ptr [ esi + 2 ] ;0x0043504d : 8d4602 je Label435054 ;0x00435050 : 7402 Label435052 :: mov eax , esi ;0x00435052 : 8bc6 Label435054 :: ret ;0x00435054 : c3 4. APPLIES TO: VFP 6.0.8167.0 VFP 6.0.8961.0 (SP5) VFP 7.0.0.9262 VFP 7.0.0.9465 (SP1) VFP 8.0.0.2521 VFP 8.0.0.3117 (SP1) VFP 9.0.0.2412 VFP 9.0.0.3504 (SP1) VFP 9.0.0.4611 (SP2) VFP 9.0.0.5015 (SP2) VFP 9.0.0.5411 (SP2) VFP 9.0.0.5721 (SP2) VFP 9.0.0.5815 (SP2) VFP 9.0.0.6303 (SP2) VFP 9.0.0.6602 (SP2) VFP 9.0.0.7423 (SP2) The bug has been fixed in VFP Advanced. 5. REFERENCE WEBSITES: 1, baiyujia.com: http://www.baiyujia.com http://www.baiyujia.com/vfpdocuments/f_vfp9fix100.asp http://www.baiyujia.com/vfpdocuments/f_vfp9fix102.asp http://www.baiyujia.com/vfpdocuments/f_vfp9fix103.asp http://www.baiyujia.com/vfpdocuments/f_vfp9fix354.asp http://www.baiyujia.com/vfpdocuments/f_vfp9fix355.asp 6. OTHER: For reference only, there is no guarantees. Any questions or suggestions, please send me an email at ccb2000@163.com. |