precisions.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>

void tokenize (const char *s, char ***tokens, size_t *tokens_length) {
	char *current_ptr = NULL;
	char *previous_ptr = NULL;
	size_t characters_read = 0;
	current_ptr = previous_ptr = s;
	for (; current_ptr < s + strlen(s);) {
		characters_read = characters_read + 1;
		if (*(current_ptr + 1) < *current_ptr) {
			*tokens_length = *tokens_length + 1;
			*tokens = (char**)realloc((void*)*tokens, *tokens_length * sizeof(char*));
			*tokens[*tokens_length - 1] = (char*)calloc(characters_read + 1, sizeof(char));
			strncpy(*tokens[*tokens_length - 1], previous_ptr, characters_read * sizeof(char));
			tokens[*tokens_length - 1] = strndup(previous_ptr, characters_read * sizeof(char));
			previous_ptr = current_ptr + 1;
			characters_read = 0;
		}
		current_ptr = current_ptr + 1;
	}
}

int main () {
	char **tokens = NULL;
	size_t tokens_length = 0;
	tokenize("hacker", &tokens, &tokens_length);
	return 0;
}