Rust example with multiple versions of a lib

Directories Description

• my-rust-bin generate the binary which links to different versions of a lib named my_rust_lib, then call the function pub fn my_rust_lib(left: usize, right: usize) -> usize
• my-rust-lib-v1 generate the lib named my_rust_lib in version v1
• my-rust-lib-v2 generate the lib named my_rust_lib in version v2
• lib is the directory which contains the lib of my_rust_lib in any version

Link lib and compile

build binary my-rust-bin with version v1 library my_rust_lib

1. Copy the library created in folder my-rust-lib-v1 into lib
2. Build the binary in folder my-rust-bin

cd my-rust-bin
cargo build --features="v1"

3. Validate the binary

• find out the binary my-rust-bin built in folder my-rust-bin
• execute the binary via command ./my-rust-bin，the output should be like below:

my_rust_lib_v1: 8
The return value of my_rust_lib is [8]

build binary my-rust-bin with version v2 library my_rust_lib

1. Copy the library created in folder my-rust-lib-v2 into lib
2. Build the binary in folder my-rust-bin

cd my-rust-bin
cargo build --features="v2"

3. Validate the binary

• find out the binary my-rust-bin built in folder my-rust-bin
• execute the binary via command ./my-rust-bin，the output should be like below:

my_rust_lib_v2: 8
The return value of my_rust_lib is [8]

Notes

This rust example is for A practice of rewriting foundation software from C to Rust(2).