pointers_double_pointers

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#include <stdio.h> #include <stdlib.h> #include <string.h> int wordsinsentence(char **x) { int w = 0; while (*x) { w += 1; x++; } return w; } int wordsinmono(char ***x) { int w = 0; while (*x) { w += wordsinsentence(*x); x++; } return w; } int wordsinbio(char ****x) { int w = 0; while (*x) { w += wordsinmono(*x); x++; } return w; } int wordsinlib(char *****x) { int w = 0; while (*x) { w += wordsinbio(*x); x++; } return w; } int wordsinlol(char ******x) { int w = 0; while (*x) { w += wordsinlib(*x); x++; } return w; } int main(void) { char *word; char **sentence; char ***monologue; char ****biography; char *****biolibrary; char ******lol; //fill data structure word = malloc(4 * sizeof *word); // assume it worked strcpy(word, "foo"); sentence = malloc(4 * sizeof *sentence); // assume it worked sentence[0] = word; sentence[1] = word; sentence[2] = word; sentence[3] = NULL; monologue = malloc(4 * sizeof *monologue); // assume it worked monologue[0] = sentence; monologue[1] = sentence; monologue[2] = sentence; monologue[3] = NULL; biography = malloc(4 * sizeof *biography); // assume it worked biography[0] = monologue; biography[1] = monologue; biography[2] = monologue; biography[3] = NULL; biolibrary = malloc(4 * sizeof *biolibrary); // assume it worked biolibrary[0] = biography; biolibrary[1] = biography; biolibrary[2] = biography; biolibrary[3] = NULL; lol = malloc(4 * sizeof *lol); // assume it worked lol[0] = biolibrary; lol[1] = biolibrary; lol[2] = biolibrary; lol[3] = NULL; printf("total words in my lol: %d\n", wordsinlol(lol)); free(lol); free(biolibrary); free(biography); free(monologue); free(sentence); free(word); return 0; }
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