kdeng00
69 lines
1.2 KiB
C
69 lines
1.2 KiB
C
/*
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*
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*
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* for (i=0; i < lim-1 && (c=getchar()) != '\n' && c ~= EOF; ++i)
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* s[i] = c;
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*
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* Exercise 2-1. Write a loop equivalent to the for loop above without using && or ||
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*
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* Author: Kun Deng
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*/
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#include <stdio.h>
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const int LIM = 10;
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int is_i_less_than_lim(int i)
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{
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// Results in 1 if true and 0 if not
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int result = i < LIM -1;
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// printf("is_i_less_than_lim(%d, %d) function result is %d\n", i, LIM, result);
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return result;
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}
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int is_c_not_new_line(char *c)
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{
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*c = getchar();
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// Results in 1 if true and 0 if not
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int result = (*c != '\n');
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// printf("is_c_not_new_line(%c) function result is %d\n", *c, result);
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return result;
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}
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int is_c_end_of_file(char c)
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{
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// Results in 1 if true and 0 if not
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int result = c != EOF;
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// printf("is_c_end_of_file(%c) function result is %d\n", c, result);
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return result;
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}
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int main()
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{
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char c;
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char s[LIM];
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int i;
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printf("Enter characters\n\n");
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// The result of the functions are compared to each other. If any are not true then the loop will
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// be terminated
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for (i = 0; is_i_less_than_lim(i) == is_c_not_new_line(&c) == is_c_end_of_file(c); ++i)
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s[i] = c;
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s[i] = '\0';
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printf("s is %s\n", s);
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return 0;
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}
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