Defined in header <stdio.h>
typedef /* implementation-defined */ fpos_t;

fpos_t is a non-array complete object type, can be used to store (by fgetpos) and restore (by fsetpos) the position and multibyte parser state (if any) for a C stream.

The multibyte parser state of a wide-oriented C stream is represented by a mbstate_t object, whose value is stored as part of the value of a fpos_t object by fgetpos.

(since C95)


  • C17 standard (ISO/IEC 9899:2018):
    • 7.21.1 Introduction (p: 217-218)
    • 7.21.2 Streams (p: 218-219)
  • C11 standard (ISO/IEC 9899:2011):
    • 7.21.1 Introduction (p: 296-298)
    • 7.21.2 Streams (p: 298-299)
  • C99 standard (ISO/IEC 9899:1999):
    • 7.19.1 Introduction (p: 262-264)
    • 7.19.2 Streams (p: 264-265)
  • C89/C90 standard (ISO/IEC 9899:1990):
    • 4.9.1 Introduction
    • 4.9.2 Streams

See also

gets the file position indicator
moves the file position indicator to a specific location in a file
conversion state information necessary to iterate multibyte character strings
C++ documentation for fpos_t

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