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# sprintf-rs
**a clone of C sprintf in Rust**
This crate was created out of a desire to provide C printf-style formatting
in a WASM program, where there is no libc.
**Note:** *You're probably better off using standard Rust string formatting
instead of this crate unless you specificaly need printf compatibility.*
This crate implements a dynamically type-checked function `vsprintf` and macro
`sprintf!`.
Usage example:
```rust
use sprintf::sprintf;
let s = sprintf!("%d + %d = %d\n", 3, 9, 3+9).unwrap();
assert_eq!(s, "3 + 9 = 12\n");
```
`libc` is a dev dependency as it is used in the tests to compare results. `std`
is used for some maths functions.
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