用C來獲取終端寬度？我一直在尋找從我的C程序中獲得終端寬度的方法。我一直想出的東西是：#include <sys/ioctl.h>#include <stdio.h>int main (void){
struct ttysize ts;
ioctl(0, TIOCGSIZE, &ts);
printf ("lines %d\n", ts.ts_lines);
printf ("columns %d\n", ts.ts_cols);}但每次我試著austin@:~$ gcc test.c -o test
test.c: In function ‘main’:test.c:6: error: storage size of ‘ts’ isn’t known
test.c:7: error: ‘TIOCGSIZE’ undeclared (first use in this function)test.c:7: error: (Each undeclared identifier is reported only once
test.c:7: error: for each function it appears in.)這是最好的方法，還是有更好的方法？如果不是，我怎樣才能讓它發揮作用？編輯：固定代碼是#include <sys/ioctl.h>#include <stdio.h>int main (void){
struct winsize w;
ioctl(0, TIOCGWINSZ, &w);
printf ("lines %d\n", w.ws_row);
printf ("columns %d\n", w.ws_col);
return 0;}
3 回答
慕絲7291255
TA貢獻1859條經驗 獲得超6個贊
#include <stdio.h>#include <stdlib.h>#include <termcap.h>#include <error.h>static char termbuf[2048];int main(void){
char *termtype = getenv("TERM");
if (tgetent(termbuf, termtype) < 0) {
error(EXIT_FAILURE, 0, "Could not access the termcap data base.\n");
}
int lines = tgetnum("li");
int columns = tgetnum("co");
printf("lines = %d; columns = %d.\n", lines, columns);
return 0;}-ltermcapinfo termcap
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