| author |  danielsan901998 <danielsan901998@gmail.com> 2024-01-30 16:24:41+01:00 |
| committer |  Veikka Tuominen <git@vexu.eu> 2024-01-31 06:38:44+02:00 |
| log | d7a27bf803fd29c499090c7bd0460fae9f0cf0f7 |
| tree | 155a2d73dc37e03aba25059ff82c0164456dad49 |
| parent | fc48bbdf90bbfa0ed1f5a95e9e5412351d1df6d7 |
Use mem.zeroes for empty union initializer list
3 files changed, 26 insertions(+), 1 deletions(-)
test- cases
src/translate_c.zig+5
| ... | @@ -2505,6 +2505,11 @@ fn transInitListExprRecord( | ... | @@ -2505,6 +2505,11 @@ fn transInitListExprRecord( |
| 2505 | var field_inits = std.ArrayList(ast.Payload.ContainerInit.Initializer).init(c.gpa); | 2505 | var field_inits = std.ArrayList(ast.Payload.ContainerInit.Initializer).init(c.gpa); |
| 2506 | defer field_inits.deinit(); | 2506 | defer field_inits.deinit(); |
| 2507 | 2507 | ||
| 2508 | if (init_count == 0) { | ||
| 2509 | const source_loc = @as(*const clang.Expr, @ptrCast(expr)).getBeginLoc(); | ||
| 2510 | return transZeroInitExpr(c, scope, source_loc, ty); | ||
| 2511 | } | ||
| 2512 | |||
| 2508 | var init_i: c_uint = 0; | 2513 | var init_i: c_uint = 0; |
| 2509 | var it = record_def.field_begin(); | 2514 | var it = record_def.field_begin(); |
| 2510 | const end_it = record_def.field_end(); | 2515 | const end_it = record_def.field_end(); |
test/cases/translate_c/empty union initializer list.c created+20
| ... | @@ -0,0 +1,20 @@ | ||
| 1 | union U { | ||
| 2 | int x; | ||
| 3 | long y; | ||
| 4 | }; | ||
| 5 | |||
| 6 | void foo(void) { | ||
| 7 | union U u = {}; | ||
| 8 | } | ||
| 9 | // translate-c | ||
| 10 | // target=x86_64-linux | ||
| 11 | // c_frontend=clang | ||
| 12 | // | ||
| 13 | // pub const union_U = extern union { | ||
| 14 | // x: c_int, | ||
| 15 | // y: c_long, | ||
| 16 | // }; | ||
| 17 | // pub export fn foo() void { | ||
| 18 | // var u: union_U = @import("std").mem.zeroes(union_U); | ||
| 19 | // _ = &u; | ||
| 20 | // } | ||
test/cases/translate_c/static empty struct.c +1-1
| ... | @@ -11,7 +11,7 @@ static inline void foo() { | ... | @@ -11,7 +11,7 @@ static inline void foo() { |
| 11 | // pub const struct_empty_struct = extern struct {}; | 11 | // pub const struct_empty_struct = extern struct {}; |
| 12 | // pub fn foo() callconv(.C) void { | 12 | // pub fn foo() callconv(.C) void { |
| 13 | // const bar = struct { | 13 | // const bar = struct { |
| 14 | // var static: struct_empty_struct = struct_empty_struct{}; | 14 | // var static: struct_empty_struct = @import("std").mem.zeroes(struct_empty_struct); |
| 15 | // }; | 15 | // }; |
| 16 | // _ = &bar; | 16 | // _ = &bar; |
| 17 | // } | 17 | // } |