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Deprecated: Return type of WP_Theme::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/home/bugyo/public_html/b-log/wp-includes/class-wp-theme.php on line 544

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Deprecated: Return type of WP_REST_Request::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/home/bugyo/public_html/b-log/wp-includes/rest-api/class-wp-rest-request.php on line 960

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C言語 – B-LOG https://blog.bugyo.tk/b-log bugyoのlog。決してblogではない。 Tue, 01 Mar 2011 07:12:50 +0000 en-US hourly 1 https://wordpress.org/?v=5.7.2 [Cプリプロセッサ] マクロ引数の文字列化 https://blog.bugyo.tk/b-log/archives/610 https://blog.bugyo.tk/b-log/archives/610#respond Fri, 28 May 2010 07:12:46 +0000
Deprecated: Creation of dynamic property WP_Term::$cat_ID is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 378

Deprecated: Creation of dynamic property WP_Term::$category_count is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 379

Deprecated: Creation of dynamic property WP_Term::$category_description is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 380

Deprecated: Creation of dynamic property WP_Term::$cat_name is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 381

Deprecated: Creation of dynamic property WP_Term::$category_nicename is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 382

Deprecated: Creation of dynamic property WP_Term::$category_parent is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 383
http://blog.bugyo.tk/b-log/?p=610 Continue reading [Cプリプロセッサ] マクロ引数の文字列化]]> C言語のプリプロセッサにおいて、引数付きマクロの引数を文字列化したいときがある。

たとえば、

int variable = 1;
DEBUG_PRINT(variable);

とすると、

printf("%s is %d", "variable", 1);

のように置換されるマクロを定義したい場合。

#define DEBUG_PRINT(x) printf("%s is %d", "x", 1)

としても、

printf("%s is %d", "x", 1);

と出力されてしまい、望む結果が得られない。

このようなときは、引数の文字列化機能を使用する。

引数名の先頭に`#’をつけることで、引数の文字列定数表現を得ることができる。

上の例の場合は次のようにする。

#define DEBUG_PRINT(x) printf("%s is %d",  #x, x)

参考
The C Preprocessor

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[C] gets、 fgetsの改行文字の処理 https://blog.bugyo.tk/b-log/archives/481 https://blog.bugyo.tk/b-log/archives/481#respond Tue, 17 Nov 2009 05:59:40 +0000
Deprecated: Creation of dynamic property WP_Term::$cat_ID is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 378

Deprecated: Creation of dynamic property WP_Term::$category_count is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 379

Deprecated: Creation of dynamic property WP_Term::$category_description is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 380

Deprecated: Creation of dynamic property WP_Term::$cat_name is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 381

Deprecated: Creation of dynamic property WP_Term::$category_nicename is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 382

Deprecated: Creation of dynamic property WP_Term::$category_parent is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 383
http://www.kitcc.org/~bugyo/b-log/?p=481 stdio.hの

getsは読み込んだ改行文字をヌル文字に変える。

fgetsは読み込んだ文字列の後ろにヌル文字を加える。
(したがって改行文字は残る。)

よく忘れる。

fgetsは行の途中で切れる場合があるので改行文字付きかどうか通知する必要がある、と覚えればよい。

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ゆの in C https://blog.bugyo.tk/b-log/archives/59 https://blog.bugyo.tk/b-log/archives/59#comments Sun, 13 Jul 2008 14:49:04 +0000
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Deprecated: Creation of dynamic property WP_Term::$category_description is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 380

Deprecated: Creation of dynamic property WP_Term::$cat_name is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 381

Deprecated: Creation of dynamic property WP_Term::$category_nicename is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 382

Deprecated: Creation of dynamic property WP_Term::$category_parent is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 383
http://www.kitcc.org/~bugyo/wordpress/archives/59 Continue reading ゆの in C]]> ゆの in languageをC言語でやろうと考えたわけですが、
まず、2バイト文字は識別子に出来ないので無理、
あと、コロンをどうしていいのか分からないので無理。
けれど、ゆの in ニコスクリプトゆの in Java
などを見るとそのあたりはごにょごにょしているかんじなので。

 X / _ / X < "来週も見てくださいね!"

ということであれば、

#include 
#define X 1
#define _ ubar()

int ubar(void)
{
    printf("ひだまりスケッチx365 来週も見てくださいね!");
    return 1;
}

int main(void)
{
    X / _ / X < "来週も見てくださいね"
    ;
    return 0;
}

ということで一応できるわけです。
整数型とポインタの比較をしているので当然警告が出ますが……。

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