isascii(3) manページ

manページ — ISASCII

isascii – ASCII 文字のテスト

Standard C Library (libc, -lc)

#include <ctype.h>

int
isascii(int c);

isascii() 関数は ASCII 文字であるかどうかをテストします。 ASCII 文字は、0 から 8 進数 0177 までの範囲で両端を含む値の任意の文字です。

isascii() 関数は ISO/IEC 9899:1990 ("ISO C90") に適合しています。

ISASCII (3)

December 11, 1993

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“	"I liken starting one's computing career with Unix, say as an undergraduate, to being born in East Africa. It is intolerably hot, your body is covered with lice and flies, you are malnourished and you suffer from numerous curable diseases. But, as far as young East Africans can tell, this is simply the natural condition and they live within it. By the time they find out differently, it is too late. They already think that the writing of shell scripts is a natural act."	”
— Ken Pier, Xerox PARC

manページ — ISASCII