vlog-rs

Macros to do stdout / stderr logs based on verbosity level.

Useful for CLI applications. The default verbosity level is 0, and the supported max verbosity level is 3, which is equivalent to -vvv flags seen in most Linux CLI applications.

Example

```rust

[macro_use]

extern crate vlog;

use vlog::{getverbositylevel, setverbositylevel};

fn main() { // default verbosity level is 0 asserteq!(0, getverbosity_level()); v0!("v0 okay"); v1!("v1 won't print"); v2!("v2 won't print"); v3!("v3 won't print");

// set custom verbosity level
set_verbosity_level(1);
assert_eq!(1, get_verbosity_level());
v0!("v0 okay");
v1!("v1 okay");
v2!("v2 won't print");
v3!("v3 won't print");

// set custom max verbosity level
set_verbosity_level(3);
assert_eq!(3, get_verbosity_level());
v0!("v0 okay");
v1!("v1 okay");
v2!("v2 okay");
v3!("v3 okay");

} ```