Error numbers
From cppreference.com
Each of the macros defined in <errno.h>
expands to an integer constant expression with type int and with a unique positive value. The following constants are defined (the implementation may define more, as long as they begin with 'E' followed by digits or uppercase letters)
Defined in header
<errno.h> |
|
EDOM |
Mathematics argument out of domain of function (macro constant) |
EILSEQ
(C95)
|
Illegal byte sequence (macro constant) |
ERANGE |
Result too large (macro constant) |
Contents |
[edit] Notes
Many additional errno constants are defined by POSIX and by the C++ standard library, and individual implementations may define even more, e.g. errno(3)
on Linux or intro(2)
on BSD and OS X.
[edit] Example
Run this code
Possible output:
log(-1.0) = nan Numerical argument out of domain log(0.0) = -inf Numerical result out of range
[edit] References
- C11 standard (ISO/IEC 9899:2011):
-
- 7.5/2 Errors <errno.h> (p: 205)
- C99 standard (ISO/IEC 9899:1999):
-
- 7.5/2 Errors <errno.h> (p: 186)
- C89/C90 standard (ISO/IEC 9899:1990):
-
- 4.1.3 Errors <errno.h>
[edit] See also
macro which expands to POSIX-compatible thread-local error number variable (macro variable) |
|
displays a character string corresponding of the current error to stderr (function) |
|
(C11)(C11)
|
returns a text version of a given error code (function) |
C++ documentation for Error numbers
|