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:Kernelライブラリ
- mkmf (4)
キーワード
-
check
_ signedness (2) -
check
_ sizeof (2)
検索結果
先頭4件
- Kernel
# check _ sizeof(type , headers = nil) -> Integer | nil - Kernel
# check _ sizeof(type , headers = nil) { . . . } -> Integer | nil - Kernel
# check _ signedness(type , headers = nil , opts = nil) -> "signed" | "unsigned" | nil - Kernel
# check _ signedness(type , headers = nil , opts = nil) { . . . } -> "signed" | "unsigned" | nil
-
Kernel
# check _ sizeof(type , headers = nil) -> Integer | nil (18610.0) -
与えられた型のサイズを返します。
与えられた型のサイズを返します。
型 type がシステムに存在する場合は、グローバル変数 $defs に
"-DSIZEOF_type=X" を追加し、型のサイズを返します。型 type がシステムに
存在しない場合は、nil を返します。
例えば、
require 'mkmf'
check_sizeof('mystruct') # => 12
である場合、SIZEOF_MYSTRUCT=12 というプリプロセッサマクロをコンパイラに渡します。
@param type 検査したい型を指定します。
@param headers 追加のヘッダファイルを指定します。 -
Kernel
# check _ sizeof(type , headers = nil) { . . . } -> Integer | nil (18610.0) -
与えられた型のサイズを返します。
与えられた型のサイズを返します。
型 type がシステムに存在する場合は、グローバル変数 $defs に
"-DSIZEOF_type=X" を追加し、型のサイズを返します。型 type がシステムに
存在しない場合は、nil を返します。
例えば、
require 'mkmf'
check_sizeof('mystruct') # => 12
である場合、SIZEOF_MYSTRUCT=12 というプリプロセッサマクロをコンパイラに渡します。
@param type 検査したい型を指定します。
@param headers 追加のヘッダファイルを指定します。 -
Kernel
# check _ signedness(type , headers = nil , opts = nil) -> "signed" | "unsigned" | nil (244.0) -
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... -
Kernel
# check _ signedness(type , headers = nil , opts = nil) { . . . } -> "signed" | "unsigned" | nil (244.0) -
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...