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2.4 float.h |
The errno header is used as a general error handler.
Macros:
EDOM
ERANGE
Variables:
errno
Declaration:
#define EDOM
some_value
EDOM
is an identifier macro declared with #define
. Its value represents a domain error
which is returned by some math functions when a domain error occurs.
Declaration:
#define ERANGE
some_value
ERANGE
is an identifier macro declared with #define
. Its value represents a range error
which is returned by some math functions when a range error occurs.
Declaration:
int errno;
The errno
variable has a value of zero at the beginning of the program. If an error
occurs, then this variable is given the value of the error number.
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2.4 float.h |