- char const *find_char(char const *source, char const *chars)
- {
- char *bingo=NULL;
- if(source!=NULL && chars!=NULL && *source!='\0' && *chars!='\0')
- {
- while(*chars!='\0')
- {
- char const *src=source;
- while(*src!='\0')
- {
- if(*chars==*src) return src;
- else src++;
- }
- chars++;
- if(*chars=='\0') return bingo;
- }
- }
- else return bingo;
- }