std::numeric_limits::max_exponent10
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| static const int max_exponent10 |
(até C++11) | |
| static constexpr int max_exponent10 |
(desde C++11) | |
O valor de std::numeric_limits<T>::max_exponent10 é o maior número positivo tal que
é um valor finito representável do tipo de ponto flutuante
n 10né um valor finito representável do tipo de ponto flutuante
T. Original:
The value of std::numeric_limits<T>::max_exponent10 is the largest positive number
is a representable finite value of the floating-point type
n such that 10nis a representable finite value of the floating-point type
T. The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[editar] Especializações padrão
T
|
valor de std::numeric_limits<T>::max_exponent10
Original: value of std::numeric_limits<T>::max_exponent10 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| /* non-specialized */ | 0 |
| bool | 0 |
| char | 0 |
| signed char | 0 |
| unsigned char | 0 |
| wchar_t | 0 |
| char16_t | 0 |
| char32_t | 0 |
| short | 0 |
| unsigned short | 0 |
| int | 0 |
| unsigned int | 0 |
| long | 0 |
| unsigned long | 0 |
| long long | 0 |
| unsigned long long | 0 |
| float | FLT_MAX_10_EXP |
| double | DBL_MAX_10_EXP |
| long double | LDBL_MAX_10_EXP |
[editar] Exemplo
Demonstra as relações de max_exponent, max_exponent10, e max () para o tipo float:
Original:
Demonstrates the relationships of max_exponent, max_exponent10, and max() for the type float:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
#include <iostream> int main() { std::cout << "max() = " << std::numeric_limits<float>::max() << '\n' << "max_exponent10 = " << std::numeric_limits<float>::max_exponent10 << '\n' << std::hexfloat << "max() = " << std::numeric_limits<float>::max() << '\n' << "max_exponent = " << std::numeric_limits<float>::max_exponent << '\n'; }
Saída:
max() = 3.40282e+38 max_exponent10 = 38 max() = 0x1.fffffep+127 max_exponent = 128
[editar] Veja também
| [estática] |
a menor potência negativa de 10 que é um valor válido de ponto flutuante normalizado Original: the smallest negative power of ten that is a valid normalized floating-point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro estático público constante) |
| [estática] |
um a mais que o maior poder inteiro da raiz que é um valor válido de ponto flutuante finita Original: one more than the largest integer power of the radix that is a valid finite floating-point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro estático público constante) |
| max_exponent10 [estática] |
a maior potência inteira de 10 que é um válido valor de ponto flutuante finita Original: the largest integer power of 10 that is a valid finite floating-point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro estático público constante) |
