# PR_cnvtf

Converts a floating point number to a string.

## Syntax

```{code}
#include <prdtoa.h>

void PR_cnvtf (
  char *buf,
  PRIntn bufsz,
  PRIntn prcsn,
  PRFloat64 fval);
```

### Parameters

The function has these parameters:

`buf`

: The address of the buffer in which to store the result.

`bufsz`

: The size of the buffer provided to hold the result.

`prcsn`

: The number of digits of precision to which to generate the floating
  point value.

`fval`

: The double-precision floating point number to be converted.

## Description

{ref}`PR_cnvtf` is a simpler interface to convert a floating point number
to a string. It conforms to the ECMA standard of Javascript
(ECMAScript).

On return, the result is written to the buffer pointed to by `buf` of
size `bufsz`.