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Man Pages


Manual Reference Pages  -  XO_ERR (3)

NAME

xo_err - emit errors and warnings in multiple formats

CONTENTS

Library
Synopsis
Description
Additional Documentation
See Also
History
Author

LIBRARY


.Lb libxo

SYNOPSIS


.In libxo/xo.h void xo_warn const char *fmt ... void xo_warnx const char *fmt ... void xo_warn_c int code const char *fmt ... void xo_warn_hc xo_handle_t *xop int code, const char *fmt ... void xo_err int eval const char *fmt ... void xo_errc int eval int code const char *fmt ... void xo_errx int eval const char *fmt ... void xo_message const char *fmt ... void xo_message_c int code const char *fmt ... void xo_message_hc xo_handle_t *xop int code, const char *fmt ... void xo_message_hcv xo_handle_t *xop int code const char *fmt va_list vap

DESCRIPTION

Many programs make use of the standard library functions err(3) and warn(3) to generate errors and warnings for the user. libxo wants to pass that information via the current output style, and provides compatible functions to allow this.

These functions display the program name, a colon, a formatted message based on the arguments, and then optionally a colon and an error message associated with either errno or the code parameter.

    EXAMPLE:
        if (open(filename, O_RDONLY) < 0)
            xo_err(1, "cannot open file ’%s’", filename);

ADDITIONAL DOCUMENTATION

Complete documentation can be found on github:
http://juniper.github.io/libxo/libxo-manual.html

libxo lives on github as:

https://github.com/Juniper/libxo

The latest release of libxo is available at:

https://github.com/Juniper/libxo/releases

SEE ALSO

xo_emit(3)

HISTORY

The libxo library was added in
.Fx 11.0 .

AUTHOR

Phil Shafer
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