October 10, 2020 [Issue 21301] New: Wrong values being passed as variadic arguments | ||||
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https://issues.dlang.org/show_bug.cgi?id=21301 Issue ID: 21301 Summary: Wrong values being passed as variadic arguments Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: regression Priority: P1 Component: dmd Assignee: nobody@puremagic.com Reporter: cromfr@gmail.com Since DMD 2.084.0, the following code fails: ``` void main() { void func(T...)(T args){ // here args[1] is received as [0, 0, 64, 64, 38, 86, 0, 0, 1, 2, 3, 4] assert(args[1][0 .. 12] == [1,2,3,4,5,6,7,8,9,10,11,12]); } func( ubyte(0), cast(ubyte[12])[1,2,3,4,5,6,7,8,9,10,11,12], cast(float[3])[1f,2f,3f], 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f, uint(0), [0,1,2,3,4], uint(0), ); } ``` This code works correctly on DMD 2.083.1, but fails on 2.084.0 and 2.084.1-beta. Adding or removing arguments in the func call (like adding one more 0f value) makes func work correctly and pass its assert. Changing the value of the first ubyte(0) changes the data received as args[1] (but still fails on the assert) args[1] seems to be shifted by 8 bytes -- |
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