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This macro expands to a value of type
Invalid argument exceptions are raised to signal that the argument passed to a function is out of its domain (i.e., the function is not defined for that value), such as sqrt(-1.0).
The value returned by a function that raises this exception is unspecified.
FE_INVALID is defined as a value that is an exact power of two, allowing several floating-point exceptions to be combined (using the bitwise OR operator:
Certain library implementations may support additional floating-point exception values (with their corresponding macros also beginning with
Reference
C library:
- <cassert> (assert.h)
- <cctype> (ctype.h)
- <cerrno> (errno.h)
-
<cfenv> (fenv.h)C++11
- <cfloat> (float.h)
-
<cinttypes> (inttypes.h)C++11
- <ciso646> (iso646.h)
- <climits> (limits.h)
- <clocale> (locale.h)
- <cmath> (math.h)
- <csetjmp> (setjmp.h)
- <csignal> (signal.h)
- <cstdarg> (stdarg.h)
-
<cstdbool> (stdbool.h)C++11
- <cstddef> (stddef.h)
-
<cstdint> (stdint.h)C++11
- <cstdio> (stdio.h)
- <cstdlib> (stdlib.h)
- <cstring> (string.h)
-
<ctgmath> (tgmath.h)C++11
- <ctime> (time.h)
-
<cuchar> (uchar.h)C++11
- <cwchar> (wchar.h)
- <cwctype> (wctype.h)
Containers:
-
<array>C++11
- <deque>
-
<forward_list>C++11
- <list>
- <map>
- <queue>
- <set>
- <stack>
-
<unordered_map>C++11
-
<unordered_set>C++11
- <vector>
-
Input/Output:
Multi-threading:
-
<atomic>C++11
-
<condition_variable>C++11
-
<future>C++11
-
<mutex>C++11
-
<thread>C++11
-
Other:
- <algorithm>
- <bitset>
-
<chrono>C++11
-
<codecvt>C++11
- <complex>
- <exception>
- <functional>
-
<initializer_list>C++11
- <iterator>
- <limits>
- <locale>
- <memory>
- <new>
- <numeric>
-
<random>C++11
-
<ratio>C++11
-
<regex>C++11
- <stdexcept>
- <string>
-
<system_error>C++11
-
<tuple>C++11
-
<type_traits>C++11
-
<typeindex>C++11
- <typeinfo>
- <utility>
- <valarray>
<cfenv> (fenv.h)
functions
-
feclearexceptC++11
-
fegetenvC++11
-
fegetexceptflagC++11
-
fegetroundC++11
-
feholdexceptC++11
-
feraiseexceptC++11
-
fesetenvC++11
-
fesetexceptflagC++11
-
fesetroundC++11
-
fetestexceptC++11
-
feupdateenvC++11
-
types
pragma
-
FENV_ACCESSC++11
-
macro constants
-
FE_ALL_EXCEPTC++11
-
FE_DFL_ENVC++11
-
FE_DIVBYZEROC++11
-
FE_DOWNWARDC++11
-
FE_INEXACTC++11
-
FE_INVALIDC++11
-
FE_OVERFLOWC++11
-
FE_TONEARESTC++11
-
FE_TOWARDZEROC++11
-
FE_UNDERFLOWC++11
-
FE_UPWARDC++11
-
macro
<cfenv>
FE_INVALID
int
Invalid argument exception
int
that identifies the floating-point exception raised on invalid arguments.Invalid argument exceptions are raised to signal that the argument passed to a function is out of its domain (i.e., the function is not defined for that value), such as sqrt(-1.0).
The value returned by a function that raises this exception is unspecified.
FE_INVALID is defined as a value that is an exact power of two, allowing several floating-point exceptions to be combined (using the bitwise OR operator:
|
) into a single value:macro value | description |
---|---|
FE_DIVBYZERO | Pole error: division by zero, or some other asymptotically infinite result (from finite arguments). |
FE_INEXACT | Inexact: the result is not exact. |
FE_INVALID | Domain error: At least one of the arguments is a value for which the function is not defined. |
FE_OVERFLOW | Overflow range error: The result is too large in magnitude to be represented as a value of the return type. |
FE_UNDERFLOW | Underflow range error: The result is too small in magnitude to be represented as a value of the return type. |
FE_ALL_EXCEPT | All exceptions (selects all of the exceptions supported by the implementation). |
FE_
).
Libraries may define in
FE_INVALID is always defined if math_errhandling has MATH_ERREXCEPT set.
<fenv.h>
only the macro values above they support (the others may not be defined).FE_INVALID is always defined if math_errhandling has MATH_ERREXCEPT set.
At least all of the above macro values are defined in
<cfenv>
(even if not supported by the implementation).See also
- FE_DIVBYZERO
- Pole error exception (macro)
- FE_INEXACT
- Inexact result exception (macro)
- FE_OVERFLOW
- Overflow range error exception (macro)
- FE_UNDERFLOW
- Underflow range error exception (macro)
- FE_ALL_EXCEPT
- All exceptions (macro)
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Spotted an error? contact us