Created
October 1, 2023 15:42
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K&R exercise 1-18
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| #include <stdio.h> | |
| #define MAXLEN 1000 | |
| /* Avoid confilic with stdio.h */ | |
| int _getline(char line[], int limit); | |
| int main(void) { | |
| char line[MAXLEN]; | |
| int i, j, c, len; | |
| while ((len = _getline(line, MAXLEN)) > 0) { | |
| for (i = len; i > 0; --i) { | |
| if ((c = line[i-1]) != '\0' && c != '\n' && c != '\t' && c != ' ') { | |
| break; | |
| } | |
| } | |
| for (j = 0; j < i; ++j) | |
| printf(">%c", line[j]); | |
| printf("\n"); | |
| } | |
| return 0; | |
| } | |
| /* Safely get line within limit `lim` */ | |
| int _getline(char s[], int lim) { | |
| int i, c; | |
| for (i = 0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; ++i) { | |
| s[i] = c; | |
| } | |
| /* | |
| If whole line was read, then last c would have been \n, | |
| so we add it **back** here. | |
| */ | |
| if (c == '\n') { | |
| s[i] = c; | |
| ++i; | |
| } | |
| /* Terminate s with \0 */ | |
| s[i] = '\0'; | |
| return i; | |
| } |
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