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check
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check
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検索結果
先頭4件
- Kernel
# check _ signedness(type , headers = nil , opts = nil) -> "signed" | "unsigned" | nil - Kernel
# check _ signedness(type , headers = nil , opts = nil) { . . . } -> "signed" | "unsigned" | nil - Kernel
. # BigDecimal(s , exception: true) -> BigDecimal | nil - Kernel
. # BigDecimal(s , n , exception: true) -> BigDecimal | nil
-
Kernel
# check _ signedness(type , headers = nil , opts = nil) -> "signed" | "unsigned" | nil (181.0) -
Returns the signedness of the given +type+. You may optionally specify additional +headers+ to search in for the +type+. If the +type+ is found and is a numeric type, a macro is passed as a preprocessor constant to the compiler using the +type+ name, in uppercase, prepended with 'SIGNEDNESS_OF_', followed by the +type+ name, followed by '=X' where 'X' is positive integer if the +type+ is unsigned, or negative integer if the +type+ is signed. For example, if size_t is defined as unsigned, then check_signedness('size_t') would returned +1 and the SIGNEDNESS_OF_SIZE_T=+1 preprocessor macro would be passed to the compiler, and SIGNEDNESS_OF_INT=-1 if check_signedness('int') is done.
...Returns the signedness of the given +type+. You may optionally
specify additional +headers+ to search in for the +type+.
If the +type+ is found and is a numeric type, a macro is passed as a
preprocessor constant to the compiler using the +type+ name, in
uppercase, prepended with 'SIGNEDNESS......F_', followed by the +type+
name, followed by '=X' where 'X' is positive integer if the +type+ is
unsigned, or negative integer if the +type+ is signed.
For example, if size_t is defined as unsigned, then
check_signedness('size_t') would returned +1 and the
SIGNEDNESS_OF_SIZE_T=+1 preprocesso......r macro would be passed to the
compiler, and SIGNEDNESS_OF_INT=-1 if check_signedness('int') is
done.... -
Kernel
# check _ signedness(type , headers = nil , opts = nil) { . . . } -> "signed" | "unsigned" | nil (181.0) -
Returns the signedness of the given +type+. You may optionally specify additional +headers+ to search in for the +type+. If the +type+ is found and is a numeric type, a macro is passed as a preprocessor constant to the compiler using the +type+ name, in uppercase, prepended with 'SIGNEDNESS_OF_', followed by the +type+ name, followed by '=X' where 'X' is positive integer if the +type+ is unsigned, or negative integer if the +type+ is signed. For example, if size_t is defined as unsigned, then check_signedness('size_t') would returned +1 and the SIGNEDNESS_OF_SIZE_T=+1 preprocessor macro would be passed to the compiler, and SIGNEDNESS_OF_INT=-1 if check_signedness('int') is done.
...Returns the signedness of the given +type+. You may optionally
specify additional +headers+ to search in for the +type+.
If the +type+ is found and is a numeric type, a macro is passed as a
preprocessor constant to the compiler using the +type+ name, in
uppercase, prepended with 'SIGNEDNESS......F_', followed by the +type+
name, followed by '=X' where 'X' is positive integer if the +type+ is
unsigned, or negative integer if the +type+ is signed.
For example, if size_t is defined as unsigned, then
check_signedness('size_t') would returned +1 and the
SIGNEDNESS_OF_SIZE_T=+1 preprocesso......r macro would be passed to the
compiler, and SIGNEDNESS_OF_INT=-1 if check_signedness('int') is
done.... -
Kernel
. # BigDecimal(s , exception: true) -> BigDecimal | nil (107.0) -
引数で指定した値を表す BigDecimal オブジェクトを生成します。
...で指定した値を表す BigDecimal オブジェクトを生成します。
@param s 数値を表現する初期値を文字列、Integer、
Float、Rational、BigDecimal オブジェクトのい
ずれかで指定します。
文字列中のスペースは無視され......きい値が採用されます。最大有
効桁数は以下のような割り算を実行するとき等に意味を持ちます。
//emlist[][ruby]{
require "bigdecimal"
BigDecimal("1") / BigDecimal("3") # => 0.333333333333333333e0
BigDecimal("1",10) / BigDecimal("3",10) # => 0.333......あります。
@param exception false を指定すると、変換できなかった場合、
例外を発生する代わりに nil を返します。
@raise ArgumentError s に Float オブジェクトを指定し、n に
Float::DIG + 2 以上の値を指定... -
Kernel
. # BigDecimal(s , n , exception: true) -> BigDecimal | nil (107.0) -
引数で指定した値を表す BigDecimal オブジェクトを生成します。
...で指定した値を表す BigDecimal オブジェクトを生成します。
@param s 数値を表現する初期値を文字列、Integer、
Float、Rational、BigDecimal オブジェクトのい
ずれかで指定します。
文字列中のスペースは無視され......きい値が採用されます。最大有
効桁数は以下のような割り算を実行するとき等に意味を持ちます。
//emlist[][ruby]{
require "bigdecimal"
BigDecimal("1") / BigDecimal("3") # => 0.333333333333333333e0
BigDecimal("1",10) / BigDecimal("3",10) # => 0.333......あります。
@param exception false を指定すると、変換できなかった場合、
例外を発生する代わりに nil を返します。
@raise ArgumentError s に Float オブジェクトを指定し、n に
Float::DIG + 2 以上の値を指定...