Message140251
"... A negative file offset may be valid for some devices in some implementations.
The POSIX.1-1990 standard did not specifically prohibit lseek() from returning a negative offset. Therefore, an application was required to clear errno prior to the call and check errno upon return to determine whether a return value of ( off_t)-1 is a negative offset or an indication of an error condition. The standard developers did not wish to require this action on the part of a conforming application, and chose to require that errno be set to [EINVAL] when the resulting file offset would be negative for a regular file, block special file, or directory."
Extract of:
http://pubs.opengroup.org/onlinepubs/009695399/functions/lseek.html |
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Date |
User |
Action |
Args |
2011-07-13 13:08:28 | vstinner | set | recipients:
+ vstinner, pitrou, neologix, Kuberan.Naganathan |
2011-07-13 13:08:28 | vstinner | set | messageid: <1310562508.69.0.221417683641.issue12545@psf.upfronthosting.co.za> |
2011-07-13 13:08:28 | vstinner | link | issue12545 messages |
2011-07-13 13:08:27 | vstinner | create | |
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