Return whether codePoint begins a valid UTF‐8 code point.

Synopsis

Declared in <bdlde_utf8util.h>

static
bool
isValidCodePoint(
    int* status,
    char const* codePoint,
    size_type numBytes);

Description

If the specified codePoint (having at least the specified numBytes) refers to a valid UTF‐8 code point then return true and load the specified status with the number of bytes in the code‐point; otherwise, if codePoint is not a valid code‐point, return false and load status with one of the (negative) ErrorStatus constants. The behavior is undefined unless numBytes > 0.

Return Value

true if codePoint is valid UTF‐8, and false otherwise

Parameters

Name

Description

status

receives byte length on success, or an ErrorStatus value

codePoint

candidate first byte of a UTF‐8 code point

numBytes

number of bytes available at codePoint

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