rustHow do I pass variable arguments in Rust?
Variable arguments in Rust can be passed using the std::env::args()
function. This function returns an iterator of the command line arguments passed to the program.
Example code
fn main() {
let args: Vec<String> = std::env::args().collect();
println!("{:?}", args);
}
Output example
["./my_program", "arg1", "arg2", "arg3"]
Code explanation
std::env::args()
: This function returns an iterator of the command line arguments passed to the program.let args: Vec<String> = std::env::args().collect();
: This line collects the arguments into a vector of strings.println!("{:?}", args);
: This line prints the vector of strings.
Helpful links
Related
- How do I access a tuple variable by index in Rust?
- How do I reuse a variable in Rust?
- How do I use a variable from another file in Rust?
- How do I print the type of a variable in Rust?
- How do I add padding to a variable in Rust?
- How do I pass a variable as an argument to a function in Rust?
- How do I keep a variable alive in Rust?
- How do I create a variable in Rust?
- How do I copy a variable in Rust?
- How do I return a variable from a function in Rust?
More of Rust
- How to get a capture group using Rust regex?
- Regex example to match multiline string in Rust?
- How to escape parentheses in a Rust regex?
- How to match the end of a line in a Rust regex?
- How to parse JSON string in Rust?
- Hashshet example in Rust
- How to get a reference to a key in a Rust HashMap?
- How to use a custom hash function with a Rust HashMap?
- How to replace a capture group using Rust regex?
- How to replace strings using Rust regex?
See more codes...