Char - Array und Pointer

[HaWe]

nein, strtok ermittelt eine gefundene Speicheradresse eines cstrings (edit: ) vor/bis zur ersten angegebenen delimiter-Bruchstelle,
und der Ausgangs-cstring wird entsprechend heruntergekürzt (der Rest-cstring hinter dem 1. delimiter):

char * strtok ( char * str, const char * delimiters );

Parameters

str
C string to truncate.
Notice that this string is modified by being broken into smaller strings (tokens).
Alternativelly, a null pointer may be specified, in which case the function continues scanning where a previous successful call to the function ended.
delimiters
C string containing the delimiter characters.
These can be different from one call to another.


Return Value
If a token is found, a pointer to the beginning of the token.
Otherwise, a null pointer.
A null pointer is always returned when the end of the string (i.e., a null character) is reached in the string being scanned.

ersetze mal im Beispiel printf durch Serial.println und main() durch void setup() und du wirst sehen, was passiert:

Example
http://www.cplusplus.com/reference/cstring/strtok/

/* strtok example */
#include <stdio.h>
#include <string.h>

int main ()
{
  char str[] ="- This, a sample string.";
  char * pch;
  printf ("Splitting string "%s" into tokens:\n",str);
  pch = strtok (str," ,.-");
  while (pch != NULL)
  {
    printf ("%s\n",pch);
    pch = strtok (NULL, " ,.-");
  }
  return 0;
}

Output:

Splitting string "- This, a sample string." into tokens:
This
a
sample
string