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-Wformat does not trigger with wrong `printf` formats

See original GitHub issue

-Wformat does not trigger with very obviously wrong printf formats. Like printf("", 1);

Logs

V[16:56:52.813] <<< {"id":865,"jsonrpc":"2.0","method":"textDocument/semanticTokens/full","params":{"textDocument":{"uri":"file:///d%3A/Desktop/C/College/Vending%20Machine/411410040.c"}}}

I[16:56:52.813] <-- textDocument/semanticTokens/full(865)
V[16:56:52.813] ASTWorker running SemanticHighlights on version 1 of d:\Desktop\C\College\Vending Machine\411410040.c
V[16:56:52.813] <<< {"id":866,"jsonrpc":"2.0","method":"textDocument/semanticTokens/full","params":{"textDocument":{"uri":"file:///d%3A/Desktop/C/College/Simple%20Base%20Conversion/SimpleBaseConversion.c"}}}

I[16:56:52.813] <-- textDocument/semanticTokens/full(866)
V[16:56:52.813] ASTWorker running SemanticHighlights on version 420 of d:\Desktop\C\College\Simple Base Conversion\SimpleBaseConversion.c
I[16:56:52.813] --> reply:textDocument/semanticTokens/full(866) 0 ms
V[16:56:52.813] >>> {"id":866,"jsonrpc":"2.0","result":{"data":[2,4,4,3,8193,2,9,5,1,1025,1,11,5,3,8192,0,6,5,1,1024,0,11,5,19,8192,0,10,4,19,8192,2,12,5,1,1024,4,21,3,1,1025,1,12,5,1,1024,0,19,5,1,1024,2,12,6,3,4096,0,7,5,1,1024,0,18,3,1,1024,1,12,6,3,4096,0,15,3,1,1024,4,12,6,3,4096,0,7,5,1,1024,0,14,3,1,1024,1,12,6,3,4096,0,17,3,1,1024],"resultId":"184"}}

I[16:56:52.813] --> textDocument/clangd.fileStatus
V[16:56:52.813] >>> {"jsonrpc":"2.0","method":"textDocument/clangd.fileStatus","params":{"state":"idle","uri":"file:///d:/Desktop/C/College/Simple%20Base%20Conversion/SimpleBaseConversion.c"}}

I[16:56:52.814] --> reply:textDocument/semanticTokens/full(865) 0 ms
V[16:56:52.814] >>> {"id":865,"jsonrpc":"2.0","result":{"data":[9,15,6,8,8193,0,7,6,8,4097,6,0,6,8,4096,0,8,10,3,8193,0,11,6,18,4096,0,7,11,2,1025,0,13,6,18,4096,0,7,8,2,1025,4,5,13,3,8193,0,20,6,8,4096,0,8,6,2,1033,5,0,6,18,4096,0,7,14,3,8193,0,21,6,8,4096,0,8,6,2,1033,5,0,6,18,4096,0,7,18,3,8193,0,25,6,8,4096,0,8,6,2,1033,5,0,6,18,4096,0,7,21,3,8193,0,28,6,8,4096,0,8,6,2,1033,6,0,4,19,8192,0,5,15,3,8193,0,16,6,8,4096,0,8,6,2,1025,0,20,5,2,1033,5,0,4,19,8192,0,5,14,3,8193,0,15,6,8,4096,0,8,6,2,1025,7,0,4,19,8192,0,5,13,3,8193,0,14,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,3,2,1025,0,17,5,2,1033,6,0,4,19,8192,0,5,12,3,8193,0,13,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,3,2,1025,6,6,9,3,8193,0,16,6,8,4096,0,8,6,2,1033,0,8,6,18,4096,0,7,3,2,1025,5,6,15,3,8193,0,22,6,8,4096,0,8,6,2,1033,5,6,14,3,8193,0,21,6,8,4096,0,8,6,2,1033,5,0,6,8,4096,0,8,11,3,8193,0,18,6,8,4096,0,8,4,2,1033,6,0,4,19,8192,0,5,12,3,8193,0,19,6,8,4096,0,8,3,2,1033,0,11,6,8,4096,0,8,3,2,1033,4,5,12,3,8193,0,13,6,8,4096,0,8,6,2,1025,5,0,4,19,8192,0,5,12,3,8193,0,19,6,8,4096,0,8,6,2,1033,5,0,4,19,8192,0,5,18,3,8193,0,19,6,8,4096,0,8,6,2,1025,7,0,4,19,8192,0,5,13,3,8193,0,14,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,4,2,1025,6,0,4,19,8192,0,5,14,3,8193,0,15,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,8,2,1025,4,0,6,8,4096,0,8,7,3,8193,6,5,13,3,8193,0,20,6,8,4096,0,8,3,2,1033,0,5,6,18,4096,0,7,3,2,1025,12,0,6,8,4096,0,8,8,3,8193,0,15,6,8,4096,0,8,3,2,1033,2,4,4,3,8193,5,7,6,8,8193,2,4,6,18,4096,0,7,4,6,2049,1,4,6,18,4096,0,7,8,6,2049,1,4,6,18,4096,0,7,11,6,2049,1,10,4,6,2049,3,0,6,8,4096,0,8,10,3,8193,0,11,6,18,4096,0,7,11,2,1025,0,13,6,18,4096,0,7,8,2,1025,2,8,11,2,1024,2,15,4,19,8192,2,4,6,8,4096,0,8,9,1,1025,0,12,6,3,8192,0,14,6,8,4096,1,9,9,1,1024,2,15,4,19,8192,2,4,9,1,1024,0,11,4,6,2048,1,4,9,1,1024,0,11,8,6,2048,0,11,8,2,1024,1,4,9,1,1024,0,11,11,6,2048,0,14,11,2,1024,1,8,8,2,1024,2,8,9,1,1024,0,11,4,6,2048,0,7,6,3,8192,0,7,8,2,1024,0,10,11,2,1024,1,13,9,1,1024,0,11,4,6,2048,2,12,4,3,8192,0,5,9,1,1024,1,19,4,19,8192,5,8,9,1,1024,0,11,4,6,2048,0,7,4,19,8192,2,11,9,1,1024,3,5,13,3,8193,0,20,6,8,4096,0,8,6,2,1033,2,4,4,3,8192,0,5,6,2,1032,0,8,4,6,2048,1,4,4,3,8192,0,14,9,18,4096,0,10,6,2,1032,3,0,6,18,4096,0,7,14,3,8193,0,21,6,8,4096,0,8,6,2,1033,2,11,6,2,1032,0,8,4,6,2048,3,0,6,18,4096,0,7,18,3,8193,0,25,6,8,4096,0,8,6,2,1033,2,11,6,2,1032,0,8,8,6,2048,3,0,6,18,4096,0,7,21,3,8193,0,28,6,8,4096,0,8,6,2,1033,2,11,6,2,1032,0,8,11,6,2048,3,0,4,19,8192,0,5,15,3,8193,0,16,6,8,4096,0,8,6,2,1025,0,20,5,2,1033,2,9,13,3,8192,0,14,6,2,1024,0,8,6,2,1024,0,8,4,6,2048,0,6,5,2,1032,2,15,5,19,8192,2,11,4,19,8192,3,0,4,19,8192,0,5,14,3,8193,0,15,6,8,4096,0,8,6,2,1025,2,9,12,3,8192,0,13,6,2,1024,0,8,6,2,1024,0,8,4,6,2048,2,15,5,19,8192,2,11,4,19,8192,3,0,4,19,8192,0,5,13,3,8193,0,14,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,3,2,1025,0,17,5,2,1033,2,8,3,2,1024,0,6,6,2,1024,0,8,4,6,2048,0,9,5,2,1032,2,15,5,19,8192,2,8,6,2,1024,0,8,4,6,2048,0,8,6,2,1024,0,8,8,6,2048,2,8,6,18,4096,0,7,14,1,1025,1,12,6,2,1024,0,8,8,6,2048,2,12,14,1,1024,0,17,6,2,1024,0,8,8,6,2048,2,13,14,3,8192,0,15,6,2,1024,0,8,14,1,1024,2,19,5,19,8192,3,4,7,3,8192,0,16,6,2,1024,0,8,4,6,2048,0,8,3,2,1024,0,11,6,2,1024,0,8,11,6,2048,0,21,6,2,1024,0,8,4,6,2048,0,7,3,2,1024,0,6,6,2,1024,0,8,11,6,2048,0,14,6,2,1024,0,8,4,6,2048,0,7,3,2,1024,0,7,6,2,1024,0,8,11,6,2048,1,4,6,3,8192,0,15,6,2,1024,0,8,4,6,2048,0,7,3,2,1024,0,6,6,2,1024,0,8,11,6,2048,0,13,5,2,1032,0,7,6,2,1024,0,8,11,6,2048,1,4,6,2,1024,0,8,4,6,2048,1,11,4,19,8192,3,0,4,19,8192,0,5,12,3,8193,0,13,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,3,2,1025,2,8,3,2,1024,0,7,6,2,1024,0,8,4,6,2048,2,15,5,19,8192,2,4,7,3,8192,0,16,6,2,1024,0,8,4,6,2048,0,7,3,2,1024,0,6,6,2,1024,0,8,11,6,2048,0,21,6,2,1024,0,8,4,6,2048,0,8,3,2,1024,0,11,6,2,1024,0,8,11,6,2048,0,14,6,2,1024,0,8,4,6,2048,0,7,3,2,1024,0,11,6,2,1024,0,8,11,6,2048,1,4,6,2,1024,0,8,4,6,2048,1,11,4,19,8192,3,6,9,3,8193,0,16,6,8,4096,0,8,6,2,1033,0,8,6,18,4096,0,7,3,2,1025,2,8,3,2,1024,0,7,6,2,1032,0,8,4,6,2048,0,9,6,2,1032,0,8,4,6,2048,0,8,6,2,1032,0,8,4,6,2048,2,15,4,19,8192,2,19,6,2,1032,0,8,4,6,2048,0,7,3,2,1024,0,6,6,2,1032,0,8,11,6,2048,3,6,15,3,8193,0,22,6,8,4096,0,8,6,2,1033,2,11,9,3,8192,0,10,6,2,1032,0,8,6,2,1032,0,8,4,6,2048,3,6,14,3,8193,0,21,6,8,4096,0,8,6,2,1033,2,11,9,3,8192,0,10,6,2,1032,3,0,6,8,4096,0,8,11,3,8193,0,18,6,8,4096,0,8,4,2,1033,2,4,6,8,4096,0,8,4,1,1025,0,7,10,3,8192,0,11,4,2,1032,0,6,11,6,2048,1,9,4,1,1024,2,15,4,19,8192,2,4,4,1,1024,0,6,4,6,2048,0,7,4,2,1032,0,6,4,6,2048,1,4,4,1,1024,0,6,8,6,2048,0,11,4,2,1032,0,6,8,6,2048,1,8,4,1,1024,0,6,8,6,2048,2,8,4,1,1024,0,6,4,6,2048,0,7,4,19,8192,1,15,4,1,1024,2,10,10,1,1025,0,13,6,3,8192,0,7,4,2,1032,0,6,8,6,2048,0,11,4,2,1032,0,6,11,6,2048,1,9,10,1,1024,2,8,13,3,8192,0,14,4,1,1024,1,15,4,19,8192,2,4,6,3,8192,0,7,10,1,1024,0,12,4,2,1032,0,6,4,6,2048,0,6,4,2,1032,0,6,8,6,2048,0,11,4,2,1032,0,6,11,6,2048,1,4,4,1,1024,0,6,4,6,2048,0,7,10,1,1024,1,11,4,1,1024,3,0,4,19,8192,0,5,12,3,8193,0,19,6,8,4096,0,8,3,2,1033,0,11,6,8,4096,0,8,3,2,1033,2,9,3,2,1032,0,8,3,2,1032,0,7,3,2,1032,0,5,4,6,2048,0,8,3,2,1032,0,5,4,6,2048,0,8,3,2,1032,0,5,11,6,2048,0,15,3,2,1032,0,5,11,6,2048,2,15,5,19,8192,2,8,6,3,8192,0,7,3,2,1032,0,5,4,6,2048,0,6,3,2,1032,0,5,4,6,2048,0,6,3,2,1032,0,5,4,6,2048,0,7,3,2,1032,0,5,11,6,2048,2,15,4,19,8192,4,15,5,19,8192,4,5,12,3,8193,0,13,6,8,4096,0,8,6,2,1025,2,4,6,2,1024,0,8,4,6,2048,3,0,4,19,8192,0,5,12,3,8193,0,19,6,8,4096,0,8,6,2,1033,2,11,6,2,1032,0,8,4,6,2048,3,0,4,19,8192,0,5,18,3,8193,0,19,6,8,4096,0,8,6,2,1025,2,8,6,2,1024,0,8,4,6,2048,2,8,4,3,8192,0,5,6,2,1024,0,8,4,6,2048,1,8,6,2,1024,0,8,4,6,2048,0,7,4,19,8192,1,15,4,19,8192,2,10,7,1,1025,0,10,7,3,8192,0,8,6,2,1024,0,8,4,6,2048,0,6,6,2,1024,0,8,4,6,2048,0,7,6,2,1024,0,8,11,6,2048,1,9,7,1,1024,2,15,5,19,8192,2,4,6,2,1024,0,8,4,6,2048,0,7,7,1,1024,1,4,6,2,1024,0,8,8,6,2048,0,11,6,2,1024,0,8,4,6,2048,1,11,4,19,8192,3,0,4,19,8192,0,5,13,3,8193,0,14,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,4,2,1025,2,8,4,2,1024,0,7,6,2,1024,0,8,4,6,2048,2,12,4,2,1024,0,8,6,2,1024,0,8,8,6,2048,2,12,6,3,8192,0,15,6,2,1024,0,8,4,6,2048,0,7,6,2,1024,0,8,4,6,2048,0,7,6,2,1024,0,8,11,6,2048,0,17,4,2,1024,0,7,6,2,1024,0,8,4,6,2048,0,8,6,2,1024,0,8,11,6,2048,1,12,6,2,1024,0,8,4,6,2048,0,7,4,2,1024,1,19,4,19,8192,4,12,6,18,4096,0,7,11,1,1025,1,19,11,1,1024,0,14,4,2,1024,2,16,11,1,1024,2,17,14,3,8192,0,15,6,2,1024,0,8,11,1,1024,2,23,5,19,8192,2,12,6,2,1024,0,8,4,6,2048,0,7,4,2,1024,1,19,4,19,8192,5,8,6,2,1024,0,8,4,6,2048,0,7,4,2,1024,1,15,4,19,8192,4,0,4,19,8192,0,5,14,3,8193,0,15,6,8,4096,0,8,6,2,1025,0,8,6,18,4096,0,7,8,2,1025,2,8,8,2,1024,0,12,6,2,1024,0,8,8,6,2048,2,15,4,19,8192,4,14,7,1,1025,0,10,7,3,8192,0,8,6,2,1024,0,8,4,6,2048,0,6,8,2,1024,0,11,6,2,1024,0,8,11,6,2048,1,13,7,1,1024,2,19,5,19,8192,2,8,6,2,1024,0,8,4,6,2048,0,7,7,1,1024,1,8,6,18,4096,0,7,11,1,1025,0,14,6,2,1024,0,8,8,6,2048,1,8,6,2,1024,0,8,8,6,2048,0,11,8,2,1024,1,8,6,3,8192,0,15,6,2,1024,0,8,4,6,2048,0,7,11,1,1024,0,14,6,2,1024,0,8,11,6,2048,0,17,6,2,1024,0,8,8,6,2048,0,11,11,1,1024,0,15,6,2,1024,0,8,11,6,2048,1,15,4,19,8192,4,0,6,8,4096,0,8,7,3,8193,2,4,6,8,4096,0,8,6,1,1025,0,9,10,3,8192,1,8,1,1,1025,1,12,1,1,1024,0,4,7,3,8192,0,14,3,19,8192,0,7,1,1,1024,2,13,5,1,1025,0,14,1,1,1024,1,8,15,3,8192,0,16,6,1,1024,0,9,5,1,1024,2,11,6,1,1024,3,5,13,3,8193,0,20,6,8,4096,0,8,3,2,1033,0,5,6,18,4096,0,7,3,2,1025,2,20,9,3,8192,0,10,3,2,1032,0,5,3,2,1024,3,0,6,8,4096,0,8,8,3,8193,0,15,6,8,4096,0,8,3,2,1033,2,4,6,8,4096,0,8,6,1,1025,0,9,10,3,8192,0,18,6,8,4096,1,4,6,18,4096,0,7,9,1,1025,0,12,14,3,8192,0,15,3,2,1032,1,9,6,18,4096,0,7,1,1,1025,0,7,1,1,1024,0,4,9,1,1024,0,11,1,1,1024,2,12,7,3,8192,0,8,13,3,8192,0,14,3,2,1032,0,5,1,1,1024,6,16,13,3,8192,0,14,3,2,1032,0,5,1,1,1024,2,20,1,1,1024,0,5,9,1,1024,4,16,6,18,4096,0,7,13,1,1025,0,16,9,1,1024,1,21,6,18,4096,0,7,1,1,1025,0,4,1,1,1024,0,7,1,1,1024,0,4,9,1,1024,0,11,1,1,1024,2,24,13,3,8192,0,14,3,2,1032,0,5,1,1,1024,2,24,13,1,1024,0,16,1,1,1024,4,16,6,18,4096,0,7,10,1,1025,0,13,1,1,1024,0,7,8,1,1025,0,11,13,1,1024,1,16,4,19,8192,0,5,12,1,1025,0,15,5,19,8192,1,24,10,1,1024,0,13,13,1,1024,0,15,10,1,1024,2,25,7,3,8192,0,8,13,3,8192,0,14,3,2,1032,0,5,10,1,1024,4,24,10,1,1024,0,14,13,1,1024,2,24,12,1,1024,0,15,4,19,8192,4,20,12,1,1024,2,20,1,1,1024,0,4,13,1,1024,3,23,8,1,1024,0,11,1,1,1024,0,3,8,1,1024,2,25,7,3,8192,0,8,13,3,8192,0,14,3,2,1032,0,5,8,1,1024,5,16,6,8,4096,0,8,5,1,1025,0,8,10,3,8192,0,25,10,1,1024,0,13,8,1,1024,1,21,6,18,4096,0,7,1,1,1025,0,4,10,1,1024,0,12,1,1,1024,0,5,8,1,1024,0,10,1,1,1024,2,20,15,3,8192,0,16,5,1,1024,0,15,13,3,8192,0,14,3,2,1032,0,5,1,1,1024,2,16,15,3,8192,0,16,6,1,1024,0,8,5,1,1024,4,11,6,1,1024],"resultId":"100"}}

I[16:56:52.814] --> textDocument/clangd.fileStatus
V[16:56:52.814] >>> {"jsonrpc":"2.0","method":"textDocument/clangd.fileStatus","params":{"state":"idle","uri":"file:///d:/Desktop/C/College/Vending%20Machine/411410040.c"}}

System information Clangd version (from the log, or clangd --version): 15.0.3 clangd extension version: 0.1.23 Operating system: Windows 10

Issue Analytics

State:
Created 10 months ago
Comments:6 (3 by maintainers)

Top GitHub Comments

1reaction

HighCommander4commented, Dec 3, 2022

And it’s only a single file project so I thought using compile_commands.json would be an overkill.

Yeah, that’s understandable. In clangd 16 you can use --query-driver without compile_commands.json, by setting the path of the compiler to be queried using the Compiler: key (under CompileFlags:) in the clangd config file. You can get a pre-release version of clangd 16 from the releases page (e.g. https://github.com/clangd/clangd/releases/tag/snapshot_20221127 is the current latest weekly snapshot), so that’s an option to try.

Alternatively, if you use something like make to build your single file, you can generate a compile_commands.json using a tool such as https://github.com/nickdiego/compiledb.

One way or another, I would suggest trying --query-driver as the way to get clangd to use the TDM-GCC header paths, rather than specifying them manually.

1reaction

cacosub7commented, Nov 30, 2022

i’m using vscode-clangd in remote linux, same issue as you posted. Moreover, Errors in the following came up periodically.

Clangd version (from the log, or clangd --version): 16.0.0 clangd extension version: 0.1.23 Operating system: centos 2.6

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Probably the most common reason is that the format specifier and the argument type do not match. To solve this kind of problem,...

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A format specifier is a placeholder that performs two functions. First, it shows where in the output to place an item not otherwise...

Printf() - an overview | ScienceDirect Topics

The printf() function sends a formatted string to the standard output (the display). This string can display formatted variables and special control ...

Bash printf formating not working - Unix & Linux Stack Exchange

@steeldriver The behavior he is expecting is not POSIX compliant. He may be on linux where a non-compliant /usr/bin/printf with a related non- ......