# mcorest_api_json_read_double

Read a numeric JSON value and convert it to a `double`.

### For an overview see page mcorest_api_json_read_*

### Prototype

        MCO_RET mcorest_api_json_read_double( mcorest_api_json_read_ctx_t *ctx, double *val );

### Arguments

ctx | Pointer to the JSON read context structure
val | The address of a `double`

### Description

> This function reads a numeric JSON value and converts it to a `double`. It is a convenience wrapper for `mcorest_api_json_read_numeric()` and`mcorest_api_json_numeric_as_double().`

### Return Codes

MCO_S_OK = 0 | Success
MCO_E_REST_* | Any of the Web Services Error Codes

### Files

Header file:
mcorestapi.h
Source file:
jsonrd.c
Library:
libmcorest.a