函数名: lseek 功 能: 移动文件读/写指针 用 法: long lseek(int handle, long offset, int fromwhere);所有打开的文件都有一个当前文件偏移量（current file offset），以下简称为 cfo。cfo 通常是一个非负整数，用于表明文件开始处到文件当前位置的字节数。读写操作通常开始于 cfo，并且使 cfo ...
In Python programming, file manipulation is a common task, and theosmodule provides several functions to work with files at a lower level than what’s available in the built-inopen()function. One such function isos.lseek(), which allows you to change the current file position within an open...
_lseek returns the offset, in bytes, of the new position from the beginning of the file. _lseeki64 returns the offset in a 64-bit integer. The function returns -1L to indicate an error. If passed an invalid parameter, such as a bad file descriptor, or the value for origin is ...
Previous Next NAME SYNOPSIS #include <sys/types.h> #include <unistd.h> off_t lseek(intfildes, off_toffset, intwhence); LearnLinux/Unixin-depth with real-world projects through ourLinux/Unix certification course. Enroll and become a certified expert to boost your career. ...
lseek() in C with Tutorial, C language with programming examples for beginners and professionals covering concepts, c pointers, c structures, c union, c strings etc.
_lseek returns the offset, in bytes, of the new position from the beginning of the file. _lseeki64 returns the offset in a 64-bit integer. The function returns -1L to indicate an error. If passed an invalid parameter, such as a bad file descriptor, or the value for origin is ...
_lseek returns the offset, in bytes, of the new position from the beginning of the file. _lseeki64 returns the offset in a 64-bit integer. The function returns -1L to indicate an error. If passed an invalid parameter, such as a bad file descriptor, or the value for origin is ...
_lseekreturns the offset, in bytes, of the new position from the beginning of the file._lseeki64returns the offset in a 64-bit integer. The function returns -1L to indicate an error. If passed an invalid parameter, such as a bad file descriptor, or the value fororiginis invalid or th...
_lseek returns the offset, in bytes, of the new position from the beginning of the file. _lseeki64 returns the offset in a 64-bit integer. The function returns –1L to indicate an error. If passed an invalid parameter, such as a bad file descriptor, or the value for origin is ...
_lseekreturns the offset, in bytes, of the new position from the beginning of the file._lseeki64returns the offset in a 64-bit integer. The function returns –1L to indicate an error. If passed an invalid parameter, such as a bad file descriptor, or the value fororiginis invalid or ...