Head First C ―頭とからだで覚えるCの基本
(オライリージャパン)
David Griffiths (著) Dawn Griffiths (著)
中田 秀基(監訳)(翻訳) 木下 哲也 (翻訳)
開発環境
- OS X Mavericks - Apple、たまにFreeBSD 10(OS)
- Emacs (CUI)、BBEdit - Bare Bones Software, Inc. (GUI) (Text Editor)
- C (プログラミング言語)
- Clang (コンパイラ)
Head First C ―頭とからだで覚えるCの基本(David Griffiths (著)、Dawn Griffiths (著) 中田 秀基(監訳)(翻訳)、木下 哲也 (翻訳)、オライリージャパン)の7章(高度な関数: 関数を最大限に活用する)、エクササイズ(p.321)を解いてみる。
その他参考書籍
- プログラミング言語C 第2版 ANSI規格準拠 (B.W. カーニハン D.M. リッチー (著)、 石田 晴久 (翻訳)、共立出版)
- プログラミング言語Cアンサー・ブック 第2版 (クロビス・L．トンド、スコット・E．ギンペル(著)、矢吹 道郎(翻訳))
- C実践プログラミング 第3版 (Steve Oualline (著)、 望月 康司 (監訳) (翻訳)、 谷口 功 (翻訳)、 オライリージャパン)
エクササイズ(p.321)
コード(BBEdit, Emacs)
sample321.c
#include <stdio.h>
#include <string.h>
int NUM_ADS = 7;
char *ADS[] = {
"William: SBM GSHO likes sports, TV, dining",
"Matt: SUM NS likes art, movies, theater",
"Luis: SLM ND likes books, theater, art",
"Mike: DWM DS likes trucks, sports and bieber",
"Peter: SAM likes chess, working out and art",
"Josh: SJM likes sports, movies and theater",
"Jed: DBM likes theater, books and dining"
};
int sports_or_workout(char *s)
{
return strstr(s, "sports") || !strstr(s, "working");
}
int ns_theater(char *s)
{
return strstr(s, "NS") && strstr(s, "theater");
}
int arts_theater_or_dining(char *s)
{
return strstr(s, "art") || strstr(s, "theater") || strstr(s, "dining");
}
void find(int (*match)(char*))
{
int i;
puts("検索結果:");
puts("------------------------------------");
for (i = 0; i < NUM_ADS; ++i)
if (match(ADS[i]))
puts(ADS[i]);
puts("------------------------------------");
}
int main(int argc, char *argv[])
{
int i;
/* 関数ポインタの配列を作成出来るか試してみる */
int (*matches[3])(char*) =
{sports_or_workout, ns_theater, arts_theater_or_dining};
for (i = 0; i < 3; ++i)
find(matches[i]);
puts("人物一覧");
for (i = 0; i < NUM_ADS; ++i)
puts(ADS[i]);
puts("スポーツかトレーニング好きな人");
find(sports_or_workout);
puts("演劇の好きな煙草を吸わない人");
find(ns_theater);
puts("芸術、演劇、または食べることが好きな人");
find(arts_theater_or_dining);
return (0);
}
Makefile
CC=cc CFLAGS = -g -Wall SRC=sample321.c OBJ=sample321.o all: sample321 sample321: $(OBJ) $(CC) $(CFLAGS) -o sample321 $(OBJ) sample321.o: sample321.c $(CC) $(CFLAGS) -c sample321.c clean: rm -rf sample321 sample321.o
入出力結果(Terminal)
$ make && ./sample321 cc -g -Wall -c sample321.c cc -g -Wall -o sample321 sample321.o 検索結果: ------------------------------------ William: SBM GSHO likes sports, TV, dining Matt: SUM NS likes art, movies, theater Luis: SLM ND likes books, theater, art Mike: DWM DS likes trucks, sports and bieber Josh: SJM likes sports, movies and theater Jed: DBM likes theater, books and dining ------------------------------------ 検索結果: ------------------------------------ Matt: SUM NS likes art, movies, theater ------------------------------------ 検索結果: ------------------------------------ William: SBM GSHO likes sports, TV, dining Matt: SUM NS likes art, movies, theater Luis: SLM ND likes books, theater, art Peter: SAM likes chess, working out and art Josh: SJM likes sports, movies and theater Jed: DBM likes theater, books and dining ------------------------------------ 人物一覧 William: SBM GSHO likes sports, TV, dining Matt: SUM NS likes art, movies, theater Luis: SLM ND likes books, theater, art Mike: DWM DS likes trucks, sports and bieber Peter: SAM likes chess, working out and art Josh: SJM likes sports, movies and theater Jed: DBM likes theater, books and dining スポーツかトレーニング好きな人 検索結果: ------------------------------------ William: SBM GSHO likes sports, TV, dining Matt: SUM NS likes art, movies, theater Luis: SLM ND likes books, theater, art Mike: DWM DS likes trucks, sports and bieber Josh: SJM likes sports, movies and theater Jed: DBM likes theater, books and dining ------------------------------------ 演劇の好きな煙草を吸わない人 検索結果: ------------------------------------ Matt: SUM NS likes art, movies, theater ------------------------------------ 芸術、演劇、または食べることが好きな人 検索結果: ------------------------------------ William: SBM GSHO likes sports, TV, dining Matt: SUM NS likes art, movies, theater Luis: SLM ND likes books, theater, art Peter: SAM likes chess, working out and art Josh: SJM likes sports, movies and theater Jed: DBM likes theater, books and dining ------------------------------------ $
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