From f95a4a932476be2ba99e2fd081e8d2bc6ea12813 Mon Sep 17 00:00:00 2001 From: PikalaxALT Date: Fri, 15 Dec 2017 09:38:53 -0500 Subject: Import newlib and create makefile --- newlib/libc/stdio/fsetpos.c | 54 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 newlib/libc/stdio/fsetpos.c (limited to 'newlib/libc/stdio/fsetpos.c') diff --git a/newlib/libc/stdio/fsetpos.c b/newlib/libc/stdio/fsetpos.c new file mode 100644 index 0000000..28cd69e --- /dev/null +++ b/newlib/libc/stdio/fsetpos.c @@ -0,0 +1,54 @@ +/* +FUNCTION +<>---restore position of a stream or file + +INDEX + fsetpos + +ANSI_SYNOPSIS + #include + int fsetpos(FILE *<[fp]>, const fpos_t *<[pos]>); + +TRAD_SYNOPSIS + #include + int fsetpos(<[fp]>, <[pos]>) + FILE *<[fp]>; + fpos_t *<[pos]>; + +DESCRIPTION +Objects of type <> can have a ``position'' that records how much +of the file your program has already read. Many of the <> functions +depend on this position, and many change it as a side effect. + +You can use <> to return the file identified by <[fp]> to a previous +position <<*<[pos]>>> (after first recording it with <>). + +See <> for a similar facility. + +RETURNS +<> returns <<0>> when successful. If <> fails, the +result is <<1>>. The reason for failure is indicated in <>: +either <> (the stream identified by <[fp]> doesn't support +repositioning) or <> (invalid file position). + +PORTABILITY +ANSI C requires <>, but does not specify the nature of +<<*<[pos]>>> beyond identifying it as written by <>. + +Supporting OS subroutines required: <>, <>, <>, +<>, <>, <>, <>. +*/ + +#include + +int +_DEFUN (fsetpos, (iop, pos), + FILE * iop _AND + _CONST fpos_t * pos) +{ + int x = fseek (iop, *pos, SEEK_SET); + + if (x != 0) + return 1; + return 0; +} -- cgit v1.2.3