Locate the first occurrence of any character in accept in str.
INPUTS
str
Search this string
accept
Look for these characters
RESULT
A pointer to the first occurence of any character in accept in str
or NULL if no character of accept is not found in str.
NOTES
EXAMPLE
char buffer[64];
strcpy (buffer, "Hello ");
// This returns a pointer to the first l in buffer.
strpbrk (buffer, "lo");
// This returns NULL
strpbrk (buffer, "xyz");