system function C string implementation (one-by-one): STRCHR

Character Lookup function strchr

Char *mystrchr (const char *STR, const char c) {char *p = null;for (char*newp = str; *NEWP! = ' + '; newp++) {if (*newp==c) {p = newp;//A one-find break;}} return p;} Char *MYSTRCHRDG (const char *STR, const char c) {if (*str!= '} ') {return NULL;} Else{if (*str==c) {return str;//returns pointer}mystrchrdg (++STR, c);//loop area terminates}}//mystrchrvoid main () {char *pstr1 = MYSTRCHR ("Zrf Is Rocket ", ' Z '); char *pstr2 = <span style=" font-family:arial, Helvetica, Sans-serif; " >mystrchrdg</span> ("ZRF is Rocket", ' A ');p rintf ("pstr2=%s\n", PSTR2); if (pstr1 = = NULL) {printf ("Can not find") ;} else{printf ("Can  find  %p   exists this character:%c\n", PSTR1, *PSTR1);} System ("Pause");}

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system function C string implementation (one-by-one): STRCHR