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KJSON_PUTDOUBLE(3)     FreeBSD Library Functions Manual	    KJSON_PUTDOUBLE(3)

NAME
     kjson_putdouble, kjson_putdoublep,	kjson_string_putdouble -- put floating
     point content for kcgijson

LIBRARY
     library "libkcgijson"

SYNOPSIS
     #include <sys/types.h>
     #include <stdarg.h>
     #include <stdint.h>
     #include <kcgi.h>
     #include <kcgijson.h>

     enum kcgi_err
     kjson_putdouble(struct kjsonreq *req, double v);

     enum kcgi_err
     kjson_putdoublep(struct kjsonreq *req, const char *name, double v);

     enum kcgi_err
     kjson_string_putdouble(struct kjsonreq *req, double v);

DESCRIPTION
     Write a double-precision floating point v to a context req	initialised
     with khtml_open(3).  This formats the value using the "g" format charac-
     ter of printf(3).	If v does not classify as normal, subnormal, or	zero,
     it	is output as null.

     The kjson_putdouble() form	is for array scopes, kjson_putdoublep()	is for
     objects, and kjson_string_putdouble() for open strings.

     Passing a NULL value to name for kjson_putdoublep(), is equivalent	to
     calling kjson_putdouble().

RETURN VALUES
     Returns an	enum kcgi_err indicating the error state.

     KCGI_OK
	  Success (not an error).

     KCGI_ENOMEM
	  Internal memory allocation failure.

     KCGI_HUP
	  The output connection	has been terminated.  For FastCGI connections,
	  the current connection should	be released with khttp_free(3) and
	  parse	loop reentered.

     KCGI_FORM
	  The connection is still expecting headers with khttp_head(3).	 Indi-
	  cates	that khttp_body(3) did not return with success or was not in-
	  voked.  For FastCGI connections, the current connection should be
	  released with	khttp_free(3) and parse	loop reentered.

     KCGI_SYSTEM
	  Internal system error	writing	to the output stream.

     KCGI_WRITER
	  The incorrect	form was used for the current scope, for example, an
	  array-type write within an object.

EXAMPLES
     The following outputs a simple JSON document.  It assumes r is a struct
     kreq pointer.  For	brevity, it does not do	any error checking.

	   khttp_head(r, kresps[KRESP_STATUS],
	     "%s", khttps[KHTTP_200]);
	   khttp_head(r, kresps[KRESP_CONTENT_TYPE],
	     "%s", kmimetypes[KMIME_APP_JSON]);
	   khttp_body(r);
	   kjson_open(&req, r);
	   kjson_obj_open(&req);
	   kjson_putdoublep(&req, "bar", 0.12345);
	   kjson_arrayp_open(&req, "baz");
	   kjson_putdouble(&req, (1.0 /	0.0)); /* null */
	   kjson_close(&req);

SEE ALSO
     kcgijson(3)

AUTHORS
     Written by	Kristaps Dzonsons <kristaps@bsd.lv>.

FreeBSD	13.0			March 27, 2020			  FreeBSD 13.0

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO | AUTHORS

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