From 470523cdad6c92d3b88a82f5e476cd4a4c61bcd2 Mon Sep 17 00:00:00 2001 From: "C. McEnroe" Date: Thu, 8 Nov 2018 21:40:50 -0500 Subject: Convert zlib.h comments to mdoc --- gzerror.3 | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 gzerror.3 (limited to 'gzerror.3') diff --git a/gzerror.3 b/gzerror.3 new file mode 100644 index 0000000..13dcddd --- /dev/null +++ b/gzerror.3 @@ -0,0 +1,75 @@ +.Dd January 15, 2017 +.Dt GZERROR 3 +.Os +. +.Sh NAME +.Nm gzerror , +.Nm gzclearerr +.Nd check and reset compressed file error +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft const char * +.Fn gzerror "gzFile file" "int *errnum" +.Ft void +.Fn gzclearerr "gzFile file" +. +.Sh DESCRIPTION +.Fn gzerror +returns the error message for the last error +which occured on the given compressed file. +.Fa errnum +is set to the zlib error number. +If an error occurred in the file system +and not in the compression library, +.Fa errnum +is set to +.Dv Z_ERRNO +and the application may consult +.Va errno +to get the exact error code. +. +.Pp +The application must not modify the returned string. +Future calls to this function +may invalidate the previously returned string. +If +.Fa file +is closed, +then the string previously returned by +.Fn gzerror +will no longer be available. +. +.Pp +.Fn gzerror +should be used to distinguish errors from end-of-file +for those functions that do not distinguish those cases +in their return values. +. +.Pp +.Fn gzclearerr +clears the error and end-of-file for +.Fa file . +This is analogous to the +.Xr clearerr 3 +function in stdio. +This is useful for continuing to read a gzip file +that is being written concurrently. +. +.Sh SEE ALSO +.Xr gzeof 3 , +.Xr gzread 3 , +.Xr gzwrite 3 +. +.Sh HISTORY +This manual page was converted from +.In zlib.h +to mdoc format by +.An C. McEnroe Aq Mt june@causal.agency . +. +.Sh AUTHORS +.An Jean-loup Gailly Aq Mt jloup@gzip.org +.An Mark Adler Aq Mt madler@alumni.caltech.edu -- cgit 1.4.1