1 .\" Copyright 2001 Andries Brouwer <aeb@cwi.nl>.
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7 .\" Permission is granted to copy and distribute modified versions of this
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12 .\" Since the Linux kernel and libraries are constantly changing, this
13 .\" manual page may be incorrect or out-of-date. The author(s) assume no
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17 .\" which is licensed free of charge, as they might when working
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23 .TH FSEEKO 3 2001-11-05 "" "Linux Programmer's Manual"
25 fseeko, ftello \- seek to or report file position
30 .BI "int fseeko(FILE *" stream ", off_t " offset ", int " whence );
32 .BI "off_t ftello(FILE *" stream );
36 The \fBfseeko()\fP and \fBftello()\fP functions are identical to
37 \fBfseek()\fP and \fBftell()\fP (see
39 respectively, except that the \fIoffset\fP argument of \fBfseeko()\fP
40 and the return value of \fBftello()\fP is of type \fBoff_t\fP
41 instead of \fBlong\fP.
43 On many architectures both \fBoff_t\fP and \fBlong\fP are 32-bit types,
47 #define _FILE_OFFSET_BITS 64
50 will turn \fBoff_t\fP into a 64-bit type.
52 These functions are found on SysV-like systems.
53 They are not present in libc4, libc5, glibc 2.0 but available since glibc 2.1.
59 functions conform to SUSv2.