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declaring const c string causes c compiler error: cannot convert 'char [5]' to 'extern struct string' #22358

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daansystems opened this issue Sep 30, 2024 · 0 comments · Fixed by #22361
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Bug This tag is applied to issues which reports bugs. Unit: cgen Bugs/feature requests, that are related to the default C generating backend.

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@daansystems
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daansystems commented Sep 30, 2024

V doctor:

V full version: V 0.4.8 18eee34.04aba8f
OS: windows, Microsoft Windows 11 Pro v22631 64-bit
Processor: 24 cpus, 64bit, little endian, 

getwd: D:\vbug2
vexe: C:\v\v.exe
vexe mtime: 2024-09-30 05:47:23

vroot: OK, value: C:\v
VMODULES: OK, value: C:\Users\info\.vmodules
VTMP: OK, value: C:\Users\info\AppData\Local\Temp\v_0

Git version: git version 2.42.0.windows.2
Git vroot status: 0.4.8-7-g04aba8f7-dirty
.git/config present: true

CC version: Error: 'cc' is not recognized as an internal or external command,

operable program or batch file.


thirdparty/tcc status: thirdparty-windows-amd64 b425ac82

What did you do?
./v -g -o vdbg cmd/v && ./vdbg main.v

module main

const msg = c'test'

fn main() {}

What did you expect to see?

no c compiler error

What did you see instead?

================== C compilation error (from tcc): ==============
cc: C:/Users/info/AppData/Local/Temp/v_0/main.01J915VWT3FW80Q61TZVXRWFWW.tmp.c:7010: warning: implicit declaration of function 'tcc_backtrace'
cc: C:/Users/info/AppData/Local/Temp/v_0/main.01J915VWT3FW80Q61TZVXRWFWW.tmp.c:13500: error: cannot convert 'char [5]' to 'extern struct string'
... (the original output was 3 lines long, and was truncated to 2 lines)
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
builder error: 
==================
C error found. It should never happen, when compiling pure V code.
This is a V compiler bug, please report it using `v bug file.v`,
or goto https://github.com/vlang/v/issues/new/choose .
You can also use #help on Discord: https://discord.gg/vlang .

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@felipensp felipensp added Bug This tag is applied to issues which reports bugs. Unit: cgen Bugs/feature requests, that are related to the default C generating backend. labels Sep 30, 2024
@felipensp felipensp self-assigned this Sep 30, 2024
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Labels
Bug This tag is applied to issues which reports bugs. Unit: cgen Bugs/feature requests, that are related to the default C generating backend.
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