1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
#include "clog.h"
bool count_consecutive_chars(char ch, char** a_pos, int* a_num_occurrences) {
if(**a_pos != ch) {
*a_num_occurrences = 0;
return false; // found no characters
}
while(**a_pos == ch) {
*a_num_occurrences += 1; // BUG: Forgot to initialize *a_num_occurrences to 0.
*a_pos += 1;
}
return true;
}
// AUTOCOMPLETE: Ctrl-P
int main(int argc, char* argv[]) {
int num_occurrences;
char* input = "aaabbcccc"; // address of the first character of this string (on the data segment)
char* pos = input; // address of the character to look at next
bool found_any = count_consecutive_chars('a', &pos, &num_occurrences);
log_bool(found_any);
log_int(num_occurrences);
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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