Package 'crc32cExample'

Example Package Using Exported 'crc32c' Functions

Description

The 'crc32c' package exposes a C-level API allowing other packages to use the functions it exposed. This packages provides a simple example of how. (The 'zigg' package has more extended examples of using the function it exposes in four different ways.)

Package Content

Index of help topics:

crc32cdemo              Demo of calling 'crc32c' functions
crc32cExample-package   Example Package Using Exported 'crc32c'
                        Functions

Maintainer

Dirk Eddelbuettel <[email protected]>

Author(s)

Dirk Eddelbuettel [aut, cre]

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Demo of calling 'crc32c' functions

Description

The 'crc32c' website has command-line demo showing how to call the library. This function crc32cdemo exposes the same functionality, but relying on R package 'crc32c' to provide the object code. The two other functions provide checksum calculation examples.

Usage

crc32cdemo()

crc32c_string(s)

crc32c_raw(x)

Arguments

s	A string
x	A raw vector

Value

The function crc32cdemo is called for its side effect of printing to stdout, and nothing is returned. The function crc32c_raw returns the checksum of a raw input vector.

Examples

s <- "The quick brown fox"
crc32c_string(s)
r <- sin(seq(0, pi, by = 0.01))
rb <- writeBin(r, raw(), size = 8L)
crc32c_raw(rb)

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