C의 간단한 strtod () 예제

strtod () 예제 를 읽을 때 의심. 코드는 다음과 같습니다.

const char *p = "111.11 -2.22 Nan nan(2) inF 0X1.BC70A3D70A3D7P+6  1.18973e+4932zzz";
printf("Parsing '%s':\n", p);
char *end;
double f; 
for (f = strtod(p, &end); p != end; f = strtod(p, &end))
{
    printf("'%.*s' -> ", (int)(end-p), p);//I can't understand this line
    p = end;
    if (errno == ERANGE){
        printf("range error, got ");
        errno = 0;
    }
    printf("%f\n", f);
}

출력 :

Parsing '111.11 -2.22 Nan nan(2) inF 0X1.BC70A3D70A3D7P+6  1.18973e+4932zzz':
'111.11' -> 111.110000
' -2.22' -> -2.220000
' Nan' -> 1.#QNAN0
' nan(2)' -> 1.#SNAN0
' inF' -> 1.#INF00
' 0X1.BC70A3D70A3D7P+6' -> 111.110000
'  1.18973e+4932' -> range error, got 1.#INF00