Reference
This feature is not supported on the Wolfram Cloud.

The CCompilerDriver package allows you to use a C compiler from within the Wolfram Language. This section summarizes the functionality.

Wolfram Language Functions

This section summarizes the functions used to work with C compilers from within the Wolfram Language.

CreateExecutablecreates an executable
CreateLibrarycreates a library
CreateObjectFilecreates an object file
CCompilerslists the supported C compilers
$CCompilerthe default C compiler
$CCompilerDefaultDirectorydefault location for creating output