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define __FUNCTION__ macro #22241

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define __FUNCTION__ macro #22241

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9ac8ebb
fix Undefined identifer
Emmankoko Dec 15, 2025
a890ea8
parse it rather
Emmankoko Dec 15, 2025
9dd193b
add pretty_function and add tests
Emmankoko Dec 15, 2025
6a85803
correct __FUNCTION__ uodate
Emmankoko Dec 16, 2025
2a32a03
bump what the macro holds on each platform
Emmankoko Dec 16, 2025
ce6494d
update to use use __FUNCTION__ like __func__
Emmankoko Dec 16, 2025
4fd4204
test __PRETTY_FUNC__
Emmankoko Dec 16, 2025
ec2350c
fix call
Emmankoko Dec 16, 2025
a7d204e
fix ident
Emmankoko Dec 16, 2025
48604c2
bump
Emmankoko Dec 16, 2025
1375bbd
investigate ubuntu later
Emmankoko Dec 17, 2025
f4f2943
check platform differences
Emmankoko Dec 18, 2025
69f17ad
update comment
Emmankoko Dec 19, 2025
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6 changes: 6 additions & 0 deletions compiler/src/dmd/cparse.d
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Original file line number Diff line number Diff line change
Expand Up @@ -752,6 +752,12 @@ final class CParser(AST) : Parser!AST
const id = token.ident.toString();
if (id.length > 2 && id[0] == '_' && id[1] == '_') // leading double underscore
{
if (token.ident is Id.FUNCTION || token.ident is Id.PRETTY_FUNCTION) //__FUNCTION__ predefined macro
{
e = new AST.FuncInitExp(loc);
nextToken();
break;
}
if (token.ident is Id.__func__)
{
addFuncName = true; // implicitly declare __func__
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12 changes: 12 additions & 0 deletions compiler/test/compilable/func.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
#include <assert.h>
#include <string.h>
void foo()
{
assert(strcmp(__FUNCTION__, "foo") == 0);
assert(strcmp(__PRETTY_FUNCTION__, "func.foo") == 0);
}

int main()
{
foo();
}
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