Find the first character not in the specified set.

Synopsis

Declared in <bslstl_string.h>

size_type
find_first_not_of(
    CHAR_TYPE character,
    size_type position = 0) const;

Description

Return the position of the first occurrence of a character different from the specified character, if such an occurrence can be found in this string (on or after the optionally specified position if such a position is specified), and return npos otherwise.

Return Value

position of the first non‐matching character, or npos

Parameters

Name

Description

character

character value

position

starting index

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