Determine JSON null.

Syntax

int json_is_null(
    const json_t* json
);

Parameters

json: [in] JSON value

Return value

Returns true / false for values of the given type.

Remarks

Returns true (non-zero) for values of the given type, and false (zero) for values of other types and for NULL.

Requirements

Header file:: lib.h : System E6.0 or later.
jansson.h
jansson_config.h
jansson_log.h
Library file:: libJansson.a
libSTARTUPOPH5000.a : System E6.0 or later.

See also

Determine the type of JSON value

Log settings

<Reference>API Reference json_is_null

Last updated: 2022/01/26

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