49 lines
906 B
C
49 lines
906 B
C
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#include <stdio.h>
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#define MAXLINE 1000 /* maximum input line size */
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int get_line(char line[], int maxline);
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void myreverse(char to[], char from[], int len);
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/* print longest input line */
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main()
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{
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int len;
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char line[MAXLINE];
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char reverse_line[MAXLINE];
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while ((len = get_line(line, MAXLINE)) > 0) {
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myreverse(reverse_line, line, len);
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printf("%s", reverse_line);
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}
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return 0;
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}
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/* getline: read a line into s, return length */
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int get_line(char s[], int lim)
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{
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int c, i;
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for (i = 0; i < lim-1 && (c = getchar()) != EOF && c != '\n'; ++i)
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s[i] = c;
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if (c == '\n') {
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s[i] = c;
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++i;
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}
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s[i] = '\0';
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return i;
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}
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/* reverse: reverse a char string */
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void myreverse(char to[], char from[], int len)
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{
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int i;
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to[len] = '\0';
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to[len-1] = '\n';
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for (i = 0; i < len-1; ++i)
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to[len-2-i] = from[i];
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// printf("%s", from);
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// printf("%s", to);
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}
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