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[BUG] How to use std::function in pure cpp2 ? #711
Description
not able to use std::function in pure cpp2.
problem link: https://cpp2.godbolt.org/z/e6acYboTY
#include <functional>
fun: (x: int) -> int = 2 * x;
main: () -> i32 = {
p_fun1: std::function<:(x: int) -> int> = fun&; // doesn't work
// p_fun2: std::function<int(int)> = fun&; // works fine
std::cout << p_fun1(3);
}
command line : -DCMAKE_CXX_FLAGS="-std=c++23 -pedantic-errors -Wall -Wextra -Wconversion -Werror=unused-result" -GNinja -Wno-dev
Expected result : 6
Actual result :
example.cpp2(6,26): error: missing ';' at end of declaration or '=' at start of initializer (at '<')
example.cpp2(5,19): error: ill-formed initializer (at '{')
example.cpp2(5,1): error: unexpected text at end of Cpp2 code section (at 'main')
example.cpp2(2,0): error: parse failed for section starting here
Activity
[-][BUG] How to use std::function in cpp2 ?[/-][+][BUG] How to use std::function in pure cpp2 ?[/+]JohelEGP commentedon Sep 29, 2023
This is #343.
hsutter commentedon Jul 27, 2024
Thanks! Your original code is now working with PR #1183, except you have to remove the
:because:always means declaring a new thing and here you're only using the type so no:is needed: