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Answer to Exercise 1-24, page 34 Category 0 Solution by Rick Dearman Category 1 Solutions by Stefan Farfeleder and Stig Brautaset Write a program to check a C program for rudimentary syntax errors like unbalanced parentheses, brackets and braces. Don't forget about quotes, both single and double, escape sequences, and comments. (This program is hard if you do it in full generality.) Rick Dearman..

Answer to Exercise 1-23, page 34 Solutions by Rick Dearman Ben Pfaff (two solutions) Lew Pitcher Gregory Pietsch Chris Torek Chris Mears Critique by Rick Litherland (see end of page) Write a program to remove all comments from a C program. Don't forget to handle quoted strings and character constants properly. C comments do not nest. This was the first exercise to be posted as a fun "competition..

Answer to Exercise 1-22, page 34 Solution by Rick Dearman Write a program to "fold" long input lines into two or more shorter lines after the last non-blank character that occurs before the n -th column of input. Make sure your program does something intelligent with very long lines, and if there are no blanks or tabs before the specified column. Category 1 Solution /****************************..

Answer to Exercise 1-21, page 34 Category 0 Solution by Rick Dearman Category 1 Solution by Stefan Farfeleder Write a program entab that replaces strings of blanks with the minimum number of tabs and blanks to achieve the same spacing. Use the same stops as for detab . When either a tab or a single blank would suffice to reach a tab stop, which should be given preference? Rick Dearman's Cat 0 so..

Answer to Exercise 1-20, page 34 Solution by Richard Heathfield Thanks to Rick Dearman for pointing out that my solution used fgets() which has not been introduced by page 34. I've fixed the solution to use K&R's getline() function instead. Further thanks to Roman Yablonovsky who, in Oct 2000, pointed out that the solution was buggy, and hinted at a fix. Basically, the problem he spotted was tha..

Answer to Exercise 1-19, page 31 Solution by Richard Heathfield Write a function reverse(s) that reverses the character string s . Use it to write a program that reverses its input a line at a time. #include #define MAX_LINE 1024 void discardnewline(char s[]) { int i; for(i = 0; s[i] != '\0'; i++) { if(s[i] == '\n') s[i] = '\0'; } } int reverse(char s[]) { char ch; int i, j; for(j = 0; s[j] != '..

Answer to Exercise 1-18, page 31 Solution by Ben Pfaff and a modification thereof by Chris Sidi Write a program to remove all trailing blanks and tabs from each line of input, and to delete entirely blank lines. /* K&R2 1-18 p31: Write a program to remove trailing blanks and tabs from each line of input, and to delete entirely blank lines. The program specification is ambiguous: does "entirely b..

Answer to Exercise 1-17, page 31 Solution by "MJSR" Write a program to print all input lines that are longer than 80 characters. #include #define MINLENGTH 81 int readbuff(char *buffer) { size_t i=0; int c; while (i < MINLENGTH) { c = getchar(); if (c == EOF) return -1; if (c == '\n') return 0; buffer[i++] = c; } return 1; } int copyline(char *buffer) { size_t i; int c; int status = 1; for(i=0; i

Answer to Exercise 1-16, page 30 Solutions by Richard Heathfield and "386sx" Revise the main routine of the longest-line program so it will correctly print the length of arbitrarily long input lines, and as much as possible of the text. /* This is the first program exercise where the spec isn't entirely * clear. The spec says, 'Revise the main routine', but the true * length of an input line can..

Answer to Exercise 1-15, page 27 Solution by Richard Heathfield Rewrite the temperature conversion program of Section 1.2 to use a function for conversion. #include float FtoC(float f) { float c; c = (5.0 / 9.0) * (f - 32.0); return c; } int main(void) { float fahr, celsius; int lower, upper, step; lower = 0; upper = 300; step = 20; printf("F C\n\n"); fahr = lower; while(fahr