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# 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`.