August 22, 2020 [Issue 21190] New: generated strings should convert to immutable char * | ||||
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https://issues.dlang.org/show_bug.cgi?id=21190 Issue ID: 21190 Summary: generated strings should convert to immutable char * Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: minor Priority: P1 Component: dmd Assignee: nobody@puremagic.com Reporter: schveiguy@yahoo.com When a string is generated at compile time (and assigned to an enum), it should be equivalent to a string literal in all cases. This works today: enum x = "hello"; const char *p = x; enum x2 = "hello" ~ " there"; p = x2; static string foo() { return "hello" ~ " there"; } enum x3 = foo(); p = x3; This does not: static string foo2() { import std.string : join; return ["hello", "there"].join(" "); } enum x4 = foo2(); p = x4; // Error: cannot implicitly convert expression "hello there" of type string to const(char*) It's unclear why foo2 cannot produce a convertible string, whereas all the other cases can. -- |
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