C Library Header – errno

The errno header is used as a general error handler. It also contains macros reporting error conditions.

The <errno.h> header shall define the following macros:

errno	macro expands to a modifiable lvalue of type int(macro variable)
EDOM	Its value represents a domain error (macro constant)
ERANGE	Its value represents a range error(macro constant)
EILSEQ	Illegal byte sequence(macro constant)(C95)

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Related topics:
<assert.h>   |   <complex.h>   |   <ctype.h>   |   <fenv.h>   |   <float.h>   |   Standard Library in C

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