1 // Copyright 2013 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Helper functions used only in tests
17 // These functions are used in the unit tests for C ABI calls.
20 rust_dbg_extern_identity_u32(uint32_t u) {
25 rust_dbg_extern_identity_u64(uint64_t u) {
30 rust_dbg_extern_identity_double(double u) {
35 rust_dbg_extern_identity_u8(char u) {
39 typedef void *(*dbg_callback)(void*);
42 rust_dbg_call(dbg_callback cb, void *data) {
46 void rust_dbg_do_nothing() { }
54 rust_dbg_extern_return_TwoU8s() {
62 rust_dbg_extern_identity_TwoU8s(struct TwoU8s u) {
72 rust_dbg_extern_return_TwoU16s() {
80 rust_dbg_extern_identity_TwoU16s(struct TwoU16s u) {
90 rust_dbg_extern_return_TwoU32s() {
98 rust_dbg_extern_identity_TwoU32s(struct TwoU32s u) {
108 rust_dbg_extern_return_TwoU64s() {
116 rust_dbg_extern_identity_TwoU64s(struct TwoU64s u) {
126 rust_dbg_extern_identity_TwoDoubles(struct TwoDoubles u) {
139 // MSVC doesn't allow empty structs or unions
145 rust_dbg_extern_empty_struct(struct ManyInts v1, struct Empty e, struct ManyInts v2) {
146 assert(v1.arg1 == v2.arg1 + 1);
147 assert(v1.arg2 == v2.arg2 + 1);
148 assert(v1.arg3 == v2.arg3 + 1);
149 assert(v1.arg4 == v2.arg4 + 1);
150 assert(v1.arg5 == v2.arg5 + 1);
151 assert(v1.arg6.one == v2.arg6.one + 1);
152 assert(v1.arg6.two == v2.arg6.two + 1);
157 rust_get_test_int() {
161 /* Debug helpers strictly to verify ABI conformance.
163 * FIXME (#2665): move these into a testcase when the testsuite
164 * understands how to have explicit C files included.
181 rust_dbg_abi_1(struct quad q) {
182 struct quad qq = { q.c + 1,
190 rust_dbg_abi_2(struct floats f) {
191 struct floats ff = { f.c + 1.0,
198 rust_dbg_static_mut = 3;
201 rust_dbg_static_mut_check_four() {
202 assert(rust_dbg_static_mut == 4);
211 uint64_t get_x(struct S s) {
215 uint64_t get_y(struct S s) {
219 uint64_t get_z(struct S s) {
223 uint64_t get_c_many_params(void *a, void *b, void *c, void *d, struct quad f) {
227 // Calculates the average of `(x + y) / n` where x: i64, y: f64. There must be exactly n pairs
228 // passed as variadic arguments.
229 double rust_interesting_average(uint64_t n, ...) {
234 for(i = 0; i < n; i += 1) {
235 sum += (double)va_arg(pairs, int64_t);
236 sum += va_arg(pairs, double);