Question
Write a function which has a prototype: int myfind(char s[], char c, int start); The function should begin searching the string allocation start for the character c. The function should return the position number of the first occurrence of the character c. If the character does not exist in the string, the function should return -1. You may not use any built in string functions except for strlen(). For example (This is only an example. s[ ] can be any string): char s[]={"Space, the final frontier" }; char t[]={ "These are the voyages"}; char u[]={"of the starship, Enterprise"}; int a, b, c; a=myfind(s,'f',15); //a set to 18 b=myfind(t,'e',0);//b set to 2 c=myfind(u,'E',0); //c set to 18
Explanation / Answer
int myfind( char s[], char c, int start ) { int l = strlen( s ); int i; if ( start < 0 || start >= l ) return -1; /* Invalid start position! */ for( i = start; i