jn2real()

The function jn2real converts a JSON numeric value to a double-precision floating-point number. It supports JSON integers, real numbers, strings representing numbers, and boolean values.

C

Prototype

double jn2real(json_t *jn_var);

Parameters

Key	Type	Description
jn_var	json_t *	A pointer to a JSON value that will be converted to a double. It can be an integer, real, string, boolean, or null.

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Return Value

Returns the double representation of the JSON value. If the input is null, it returns 0.0.

Notes

If jn_var is a string, it is converted using atof(). Boolean values are mapped to 1.0 (true) and 0.0 (false).

JS

Prototype

// Not applicable in JS

Python

Prototype

# Not applicable in Python

Examples

C

// TODO C examples

JS

// TODO JS examples

Python

# TODO Python examples