strpbrk - scan a string for a byte
char *strpbrk(const char *s1, const char *s2);
[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2017 defers to the ISO C standard.
The strpbrk() function shall locate the first occurrence in the string pointed to by s1 of any byte from the string pointed to by s2.
Upon successful completion, strpbrk() shall return a pointer to the byte or a null pointer if no byte from s2 occurs in s1.
No errors are defined.
First released in Issue 1. Derived from Issue 1 of the SVID.
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