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cannot build a rust file using std::complex
I want to build an interface between c++ and rust, but different errors occurred.
Input C/C++ Header
#ifndef __TEST_HPP__
#define __TEST_HPP__
#include <cstdint>
#include <array>
#include <complex>
template<uint32_t s_>
class Config{
uint16_t doppler_idx;
uint16_t range_idx;
std::array< std::complex<float> , s_> vector;
};
#endif
If I rename the types to
class Complex : std::complex<float>{};
seems to help, but then I do not have the functions, containing the std::complex
Bindgen Invocation
extern crate bindgen;
use std::env;
use std::path::PathBuf;
fn main() {
let bindings = bindgen::Builder::default()
.header("test.hpp")
.clang_arg("-std=c++17")
.clang_arg("-x")
.clang_arg("c++")
.opaque_type("std::.*")
.generate()
.unwrap();
// Write the bindings to the $OUT_DIR/bindings.rs file.
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("test.rs"))
.expect("Couldn't write bindings!");
}
Actual Results
Fresh version_check v0.1.5
Fresh cc v1.0.50
Fresh glob v0.3.0
Fresh lazy_static v1.4.0
Fresh unicode-xid v0.2.0
Fresh regex-syntax v0.6.14
Fresh quick-error v1.2.3
Fresh unicode-width v0.1.7
Fresh cfg-if v0.1.10
Fresh ansi_term v0.11.0
Fresh termcolor v1.1.0
Fresh vec_map v0.8.1
Fresh strsim v0.8.0
Fresh shlex v0.1.1
Fresh peeking_take_while v0.1.2
Fresh lazycell v1.2.1
Fresh rustc-hash v1.1.0
Fresh thread_local v1.0.1
Fresh humantime v1.3.0
Fresh textwrap v0.11.0
Fresh libc v0.2.67
Fresh memchr v2.3.3
Fresh log v0.4.8
Fresh proc-macro2 v1.0.9
Fresh bitflags v1.2.1
Fresh atty v0.2.14
Fresh aho-corasick v0.7.8
Fresh nom v4.2.3
Fresh libloading v0.5.2
Fresh quote v1.0.2
Fresh which v3.1.0
Fresh regex v1.3.4
Fresh cexpr v0.3.6
Fresh clap v2.33.0
Fresh clang-sys v0.28.1
Fresh env_logger v0.7.1
Fresh bindgen v0.53.1
Compiling test v0.1.0 (/mnt/c/Users/Anton/rust_ffi)
Running `rustc --crate-name test src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C debuginfo=2 --test -C metadata=8090ca622680a031 -C extra-filename=-8090ca622680a031 --out-dir /mnt/c/Users/Anton/rust_ffi/target/debug/deps -C incremental=/mnt/c/Users/Anton/rust_ffi/target/debug/incremental -L dependency=/mnt/c/Users/Anton/rust_ffi/target/debug/deps`
Running `rustc --crate-name test src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=ea306d16b166d5b8 -C extra-filename=-ea306d16b166d5b8 --out-dir /mnt/c/Users/Anton/rust_ffi/target/debug/deps -C incremental=/mnt/c/Users/Anton/rust_ffi/target/debug/incremental -L dependency=/mnt/c/Users/Anton/rust_ffi/target/debug/deps`
error[E0428]: the name `FP_INT_UPWARD` is defined multiple times
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:13105:1
|
1000 | pub const FP_INT_UPWARD: u32 = 0;
| --------------------------------- previous definition of the value `FP_INT_UPWARD` here
...
error[E0412]: cannot find type `_Tp` in this scope
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:1250:27
|
1250 | pub static std_value: _Tp;
| ^^^ not found in this scope
error[E0412]: cannot find type `_Value` in this scope
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:6555:33
|
6555 | pub static __gnu_cxx___min: _Value;
| ^^^^^^ not found in this scope
error[E0412]: cannot find type `_Value` in this scope
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:6559:33
|
6559 | pub static __gnu_cxx___max: _Value;
| ^^^^^^ not found in this scope
error[E0391]: cycle detected when processing `int_type`
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:17321:21
|
17321 | pub type int_type = int_type;
| ^^^^^^^^
|
= note: ...which again requires processing `int_type`, completing the cycle
note: cycle used when collecting item types in top-level module
--> src/lib.rs:1:1
|
1 | / #![allow(non_upper_case_globals)]
2 | | #![allow(non_camel_case_types)]
3 | | #![allow(non_snake_case)]
4 | |
5 | | include!(concat!(env!("OUT_DIR"), "/test.rs"));
| |_______________________________________________^
error: aborting due to 18 previous errors
Some errors have detailed explanations: E0391, E0412, E0428.
For more information about an error, try `rustc --explain E0391`.
error: could not compile `test`.
Caused by:
process didn't exit successfully: `rustc --crate-name test src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=ea306d16b166d5b8 -C extra-filename=-ea306d16b166d5b8 --out-dir /mnt/c/Users/Anton/rust_ffi/target/debug/deps -C incremental=/mnt/c/Users/Anton/rust_ffi/target/debug/incremental -L dependency=/mnt/c/Users/Anton/rust_ffi/target/debug/deps` (exit code: 1)
warning: build failed, waiting for other jobs to finish...
error[E0412]: cannot find type `_Tp` in this scope
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:1250:27
|
1250 | pub static std_value: _Tp;
| ^^^ not found in this scope
error[E0412]: cannot find type `_Value` in this scope
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:6555:33
|
6555 | pub static __gnu_cxx___min: _Value;
| ^^^^^^ not found in this scope
error[E0412]: cannot find type `_Value` in this scope
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:6559:33
|
6559 | pub static __gnu_cxx___max: _Value;
| ^^^^^^ not found in this scope
error[E0391]: cycle detected when processing `int_type`
--> /mnt/c/Users/Anton/rust_ffi/target/debug/build/test-4a7a62747503f49c/out/test.rs:17321:21
|
17321 | pub type int_type = int_type;
| ^^^^^^^^
|
= note: ...which again requires processing `int_type`, completing the cycle
note: cycle used when collecting item types in top-level module
--> src/lib.rs:1:1
|
1 | / #![allow(non_upper_case_globals)]
2 | | #![allow(non_camel_case_types)]
3 | | #![allow(non_snake_case)]
4 | |
5 | | include!(concat!(env!("OUT_DIR"), "/test.rs"));
| |_______________________________________________^
error: aborting due to 18 previous errors
Some errors have detailed explanations: E0391, E0412, E0428.
For more information about an error, try `rustc --explain E0391`.
error: could not compile `test`.
Caused by:
process didn't exit successfully: `rustc --crate-name test src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C debuginfo=2 --test -C metadata=8090ca622680a031 -C extra-filename=-8090ca622680a031 --out-dir /mnt/c/Users/Anton/rust_ffi/target/debug/deps -C incremental=/mnt/c/Users/Anton/rust_ffi/target/debug/incremental -L dependency=/mnt/c/Users/Anton/rust_ffi/target/debug/deps` (exit code: 1)
Yeah, std template soup really confuses bindgen sometimes. This could get some work... Generally we're already close-to-libclang-limits when dealing with templates :(
Does anyone have a correct recipe to get these to be ignored?
I currently have
.blocklist_function("strtold")
// qvct, evct, qfcvt_r, ...
.blocklist_function("[a-z]{1,2}cvt(?:_r)?")
// c++ things that aren't supported
.blocklist_item("List_iterator")
.blocklist_type("std::char_traits")
.opaque_type("std_.*")
.blocklist_item("std_basic_string")
.blocklist_item("std_collate.*")
.blocklist_item("__gnu_cxx__min")
I have tried a ton of combinations of blocklist and opaque, but I can't for the life of me get it to not include the following:
pub type std_collate_string_type = std_basic_string<_CharT>;
pub type std_collate_byname_string_type = std_basic_string<_CharT>;
extern "C" {
#[link_name = "\u{1}value"]
pub static std_value: _Tp;
}
extern "C" {
#[link_name = "\u{1}__min"]
pub static __gnu_cxx___min: _Value;
}
extern "C" {
#[link_name = "\u{1}__max"]
pub static __gnu_cxx___max: _Value;
}
I'm hitting this after upgrading to Xcode 14.3:
error[E0412]: cannot find type `_Tp` in this scope
--> bindings.rs:89:27
|
89 | pub static std_value: _Tp;
| ^^^ not found in this scope
I found this issue through Google. FWIW I can get rid of the _Tp problem with this:
.blocklist_item("std::value")
Does anyone have a correct recipe to get these to be ignored?
I currently have
.blocklist_function("strtold") // qvct, evct, qfcvt_r, ... .blocklist_function("[a-z]{1,2}cvt(?:_r)?") // c++ things that aren't supported .blocklist_item("List_iterator") .blocklist_type("std::char_traits") .opaque_type("std_.*") .blocklist_item("std_basic_string") .blocklist_item("std_collate.*") .blocklist_item("__gnu_cxx__min")I have tried a ton of combinations of blocklist and opaque, but I can't for the life of me get it to not include the following:
pub type std_collate_string_type = std_basic_string<_CharT>; pub type std_collate_byname_string_type = std_basic_string<_CharT>; extern "C" { #[link_name = "\u{1}value"] pub static std_value: _Tp; } extern "C" { #[link_name = "\u{1}__min"] pub static __gnu_cxx___min: _Value; } extern "C" { #[link_name = "\u{1}__max"] pub static __gnu_cxx___max: _Value; }
.blocklist_file(r"/usr/share/mingw-w64/include/.*")
.blocklist_file(r"/usr/lib/gcc/x86_64-w64-mingw32/.*")
worked for me and excluded all of the items you mentioned.
Does anyone have a correct recipe to get these to be ignored?
I currently have
.blocklist_function("strtold") // qvct, evct, qfcvt_r, ... .blocklist_function("[a-z]{1,2}cvt(?:_r)?") // c++ things that aren't supported .blocklist_item("List_iterator") .blocklist_type("std::char_traits") .opaque_type("std_.*") .blocklist_item("std_basic_string") .blocklist_item("std_collate.*") .blocklist_item("__gnu_cxx__min")I have tried a ton of combinations of blocklist and opaque, but I can't for the life of me get it to not include the following:
pub type std_collate_string_type = std_basic_string<_CharT>; pub type std_collate_byname_string_type = std_basic_string<_CharT>; extern "C" { #[link_name = "\u{1}value"] pub static std_value: _Tp; } extern "C" { #[link_name = "\u{1}__min"] pub static __gnu_cxx___min: _Value; } extern "C" { #[link_name = "\u{1}__max"] pub static __gnu_cxx___max: _Value; }
On linux what worked for me was:
.blocklist_item("std::value")
.blocklist_item("__gnu_cxx::__min")
.blocklist_item("__gnu_cxx::__max")
Apparently bindgen uses underscores as a replacement for scope resolution operator
