Format code using 'cargo fmt'

Author: Atul9

examples/greet.rs

@@ -3,7 +3,7 @@ use std::mem;
 use std::os::raw::{c_char, c_void};
 
 #[no_mangle]
-pub extern fn allocate(size: usize) -> *mut c_void {
+pub extern "C" fn allocate(size: usize) -> *mut c_void {
     let mut buffer = Vec::with_capacity(size);
     let pointer = buffer.as_mut_ptr();
     mem::forget(buffer);
@@ -12,14 +12,14 @@ pub extern fn allocate(size: usize) -> *mut c_void {
 }
 
 #[no_mangle]
-pub extern fn deallocate(pointer: *mut c_void, capacity: usize) {
+pub extern "C" fn deallocate(pointer: *mut c_void, capacity: usize) {
     unsafe {
         let _ = Vec::from_raw_parts(pointer, 0, capacity);
     }
 }
 
 #[no_mangle]
-pub extern fn greet(subject: *mut c_char) -> *mut c_char {
+pub extern "C" fn greet(subject: *mut c_char) -> *mut c_char {
     let subject = unsafe { CStr::from_ptr(subject).to_bytes().to_vec() };
     let mut output = b"Hello, ".to_vec();
     output.extend(&subject);

examples/memory.rs

@@ -1,4 +1,4 @@
 #[no_mangle]
-pub extern fn return_hello() -> *const u8 {
+pub extern "C" fn return_hello() -> *const u8 {
     b"Hello, World!\0".as_ptr()
 }

examples/simple.rs

@@ -1,4 +1,4 @@
 #[no_mangle]
-pub extern fn sum(x: i32, y: i32) -> i32 {
+pub extern "C" fn sum(x: i32, y: i32) -> i32 {
     x + y
 }

tests/tests.rs

@@ -1,47 +1,47 @@
 #[no_mangle]
-pub extern fn sum(x: i32, y: i32) -> i32 {
+pub extern "C" fn sum(x: i32, y: i32) -> i32 {
     x + y
 }
 
 #[no_mangle]
-pub extern fn arity_0() -> i32 {
+pub extern "C" fn arity_0() -> i32 {
     42
 }
 
 #[no_mangle]
-pub extern fn i32_i32(x: i32) -> i32 {
+pub extern "C" fn i32_i32(x: i32) -> i32 {
     x
 }
 
 #[no_mangle]
-pub extern fn i64_i64(x: i64) -> i64 {
+pub extern "C" fn i64_i64(x: i64) -> i64 {
     x
 }
 
 #[no_mangle]
-pub extern fn f32_f32(x: f32) -> f32 {
+pub extern "C" fn f32_f32(x: f32) -> f32 {
     x
 }
 
 #[no_mangle]
-pub extern fn f64_f64(x: f64) -> f64 {
+pub extern "C" fn f64_f64(x: f64) -> f64 {
     x
 }
 
 #[no_mangle]
-pub extern fn i32_i64_f32_f64_f64(a: i32, b: i64, c: f32, d: f64) -> f64 {
+pub extern "C" fn i32_i64_f32_f64_f64(a: i32, b: i64, c: f32, d: f64) -> f64 {
     a as f64 + b as f64 + c as f64 + d
 }
 
 #[no_mangle]
-pub extern fn bool_casted_to_i32() -> bool {
+pub extern "C" fn bool_casted_to_i32() -> bool {
     true
 }
 
 #[no_mangle]
-pub extern fn string() -> *const u8 {
+pub extern "C" fn string() -> *const u8 {
     b"Hello, World!\0".as_ptr()
 }
 
 #[no_mangle]
-pub extern fn void() {}
+pub extern "C" fn void() {}