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FLT_EVAL_METHOD

提供: cppreference.com
< c‎ | types‎ | limits

Defined in header <float.h>
#define FLT_EVAL_METHOD /* implementation defined */
(C99以来)
すべての浮動小数点算術演算が行われている精度を指定します.
Original:
Specifies the precision in which all floating-point arithmetic operations are done.
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Original:
Value
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Explanation
negative values except -1
処理系定義の動作
Original:
implementation-defined behavior
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-1
デフォルトの精度は知られていない
Original:
the default precision is not known
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0
すべての操作と定数は、使用されるタイプの範囲と精度で評価する。さらに、float_tdouble_tfloatdoubleそれぞれ等しくなる
Original:
all operations and constants evaluate in the range and precision of the type used. Additionally, float_t and double_t are equivalent to float and double respectively
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1
すべての操作と定数はdoubleの範囲と精度で評価する。さらに、両方のfloat_tdouble_tdoubleに相当します
Original:
all operations and constants evaluate in the range and precision of double. Additionally, both float_t and double_t are equivalent to double
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2
すべての操作と定数はlong doubleの範囲と精度で評価する。さらに、両方のfloat_tdouble_tlong doubleに相当します
Original:
all operations and constants evaluate in the range and precision of long double. Additionally, both float_t and double_t are equivalent to long double
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C++ documentation for FLT_EVAL_METHOD