Strstr_while model, strstr

Strstr_while model, strstr

1 # define _ CRT_SECURE_NO_WARNINGS 2 # include <stdio. h> 3 # include <stdlib. h> 4 # include <string. h> 5 6 int method () 7 {8 char * p = "123abcd23sdfwee1_abcd12344abcd"; 9 int ncount = 0; 10 11/* do12 {13 p = strstr (p, "abcd"); 14 if (p! = NULL) 15 {16 ncount ++; 17 p = p + strlen ("abcd"); 18} 19 else20 {21 break; 22} 23} while (* p! = '\ 0'); */24 25 26 while (p = strstr (p, "abcd") 27 {28 ncount ++; 29 p = p + strlen ("abcd"); 30 if (* p = '\ 0') 31 break; 32} 33 34 printf ("ncount: % d \ n ", ncount); 35 printf (" hello... \ n "); 36 system (" pause "); 37 return 0; 38} 39 int getCount (char * mystr/* in */, char * sub/* in */, int * ncount) 40 {41 int ret = 0; 42 int tmpCount = 0; 43 // initialize p pointer to the search condition 44 char * p = mystr; // do not change the value of the parameter easily 45 if (mystr = NULL | sub = NULL | | Ncount = NULL) 46 {47 ret =-1; 48 printf ("func getCount () err: % d (mystr = NULL | sub | NULL | ncount = NULL) \ n ", ret); 49 return ret; 50} 51 52 while (p = strstr (p, sub) 53 {54 tmpCount ++; 55 p = p + strlen (sub ); 56 if (* p = '\ 0') 57 break; 58} 59 * ncount = tmpCount; // The indirect value assignment indicates the existence of the pointer 60 return ret; 61} 62 63 int main () 64 {65 char * p = "abcd1234asd222abcd"; 66/* char * sub; 67 sub = "abcd "; */68 char sub [] =" Abcd "; 69 int ncount = 0; 70 int ret = 0; 71 72 73 ret = getCount (p, sub, & ncount); 74 if (ret! = 0) 75 {76 printf ("func getCount () err: \ n", ret); 77 78} 79 printf ("ncount: % d \ n", ncount ); 80 81 printf ("hello... \ n "); 82 system (" pause "); 83 return 0; 84}