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Bug 923 – No constant folding for template value default arguments, D1 only

Status: RESOLVED
Resolution: FIXED
Severity: normal
Priority: P2
Component: dmd
Product: D
Version: D1 (retired)
Platform: x86
OS: All
Creation time: 2007-02-02T13:13:00Z
Last change time: 2014-02-16T15:22:03Z
Keywords: patch, rejects-valid
Assigned to: nobody
Creator: clugdbug

Comments

Comment #0 by clugdbug — 2007-02-02T13:13:19Z

Error: expression 1 + 2 is not a valid template value argument ---------- void a(int b = 1+2)(){}; void main() { a!(1+2)(); // OK a(); // fails }

Comment #1 by thomas-dloop — 2007-04-05T11:38:52Z

workround: "a!()()" instead of "a()" Added to DStress as http://dstress.kuehne.cn/run/t/template_58_A.d http://dstress.kuehne.cn/run/t/template_58_B.d http://dstress.kuehne.cn/run/t/template_58_C.d http://dstress.kuehne.cn/run/t/template_58_D.d http://dstress.kuehne.cn/run/t/template_58_E.d

Comment #2 by clugdbug — 2009-08-13T04:43:06Z

This has already been fixed in D2. Here's the patch for D1.046. It's trivial. Index: template.c =================================================================== --- template.c (revision 192) +++ template.c (working copy) @@ -3951,6 +3951,7 @@ { sinteger_t v; real_t r; + ea = ea->optimize(WANTvalue | WANTinterpret); if (ea->op == TOKvar) { sa = ((VarExp *)ea)->var;

Comment #3 by clugdbug — 2009-10-21T06:40:11Z

Fixed DMD1.050.