std::exp, std::expf, std::expl
From cppreference.com
| Defined in header <cmath>
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| (1) | ||
float exp ( float num ); double exp ( double num ); |
(until C++23) | |
| /*floating-point-type*/ exp ( /*floating-point-type*/ num ); |
(since C++23) (constexpr since C++26) |
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float expf( float num ); |
(2) | (since C++11) (constexpr since C++26) |
long double expl( long double num ); |
(3) | (since C++11) (constexpr since C++26) |
| SIMD overload (since C++26) |
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| Defined in header <simd>
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| template< /*math-floating-point*/ V > constexpr /*deduced-simd-t*/<V> |
(S) | (since C++26) |
| Additional overloads (since C++11) |
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| Defined in header <cmath>
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template< class Integer > double exp ( Integer num ); |
(A) | (constexpr since C++26) |
1-3) Computes e (Euler's number, 2.7182818...) raised to the given power num. The library provides overloads of
std::exp for all cv-unqualified floating-point types as the type of the parameter.(since C++23)|
S) The SIMD overload performs an element-wise
std::exp on v_num.
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(since C++26) |
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A) Additional overloads are provided for all integer types, which are treated as double.
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(since C++11) |
Contents |
[edit] Parameters
| num | - | floating-point or integer value |
[edit] Return value
If no errors occur, the base-e exponential of num (enum
) is returned.
If a range error occurs due to overflow,