Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/w/warn.html on line 1
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/w/warn.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/w/warn.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/w/warn.html on line 8
Formatted error message
#include <err.h>
void warn( const char* fmt, ...);
void warnx( const char* fmt, ...);
- fmt
- NULL, or a
printf()-style
string used to format the message.
- Additional arguments
- As required by the format string.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The err() and warn() family of functions display
a formatted error message on
stderr.
For a comparison of the members of this family, see
err().
The warn() function produces a message that consists of:
- the last component of the program name, followed by a colon and a space
- the formatted message, followed by a colon and a space, if the
fmt argument isn't NULL
- the string associated with the current value of
errno
- a newline character.
The warnx() function produces a similar message, except that it
doesn't include the string associated with errno.
The message consists of:
- the last component of the program name, followed by a colon and a space
- the formatted message, if the fmt argument isn't
NULL
- a newline character.
Warn of an error:
if ((fd = open(raw_device, O_RDONLY, 0)) == -1)
warnx("%s: %s: trying the block device",
raw_device, strerror(errno));
if ((fd = open(block_device, O_RDONLY, 0)) == -1)
warn("%s", block_device);
Unix
Safety: | |
Cancellation point |
Yes |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
err(),
errx(),
stderr,
strerror(),
verr(),
verrx(),
vwarn(),
vwarnx()
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/w/warn.html on line 159
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/w/warn.html on line 159