Mar

An alternative D standard library.

Goals

• Work without the C standard library and without druntime

Note: it should also work with the C standard library via a "version" switch

Note that this also implies it works without the GC.

• Work with "Better C"
• Expose both "platform-specific" and "platform-agnostic" apis.
• Levarage D's type systems to create APIs with strong safety guarantees.

An example of this is the SentinelPtr template that results in a pointer to an array that guarantees the array ends with a "sentinel value". The classic example of this is a "c string" which ends with a null character. By using SentinelPtr in an API, it documents this requirement and enforces it at compile time. This also facilitates better interoperation with C as it allows D to work with C strings making it unnecessary to marshal strings to temporary buffers every time they are passed to a C function.

Build

Currently there's no build. If you want to use it, you can add the following arguments to your compiler command:

-I=<mar_repo>/src -i=mar

-I=<mar_repo/src: add mar to the include path -i=mar compile all imported modules from the mar package

This will cause the compiler to compile any modules from mar alongside your own application.

Test

cd test
./go.d

Versions

-version=NoStdc

Do not use the standard C library

-version=NoExit

Do not allow calls to exit. Reduces the number of ways the program can quit. Useful if program needs to clean up before exiting.