---
name: "buffer_feed"
section: "3"
platform: "linux"
package: "libowfat-dev"
version: "0.32-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/buffer_feed"
---

# buffer\_feed(3)

low-level component of buffer\_get

## NAME

buffer\_feed - low-level component of buffer\_get

## SYNTAX

**#include \<libowfat/buffer.h\>**

int **buffer\_feed**(buffer\* *b*);

## DESCRIPTION

If the string is nonempty, buffer\_feed returns the length of the string. If the string is empty, buffer\_feed uses the read operation to feed data into the string; it then returns the new length of the string, or 0 for end of input, or -1 for error.

## SEE ALSO

[buffer\_init(3)](/buffer_init/3.md), [buffer\_get(3)](/buffer_get/3.md), [buffer\_peek(3)](/buffer_peek/3.md), [buffer\_feed(3)](/buffer_feed/3.md), [buffer(3)](/buffer/3.md)