# expr-solver
A simple mathematical expression solver library written in Rust.
## Features
- **Evaluate simple math expressions**
- **Register custom constants and functions**
- **Proper error handling** with source location information
- **Compilation to bytecode** with serialization support
- **Stack-based virtual machine** for efficient execution
## Usage
### As a Library
Add this to your `Cargo.toml`:
```toml
[dependencies]
expr-solver-lib = "1.0.2"
```
### As a binary
Add this to your `Cargo.toml`:
```toml
[dependencies]
expr-solver-bin = "1.0.2"
```
### Basic Example
```rust
use expr_solver::{Eval};
fn main() {
let mut eval = Eval::new("2+3*4");
match eval.run() {
Ok(result) => println!("Result: {}", result),
Err(e) => eprintln!("Error: {}", e),
}
}
```
This will evaluate the hardcoded expression `2 + 3 * 4` and print the result.
## Testing
Run the test suite:
```bash
# Run all tests
cargo test
```
## License
This project is licensed under the MIT License.