microsoft / microsoft/vscode-cpptools
Locals in Variables spinning forever when the below attached program is debugged
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Descripción
Environment
- OS and version: macos
- VS Code: 1.93.1
- C/C++ extension: v1.21.6
- OS and version of remote machine (if applicable):
- GDB / LLDB version: lldb-1500.0.404.7
Apple Swift version 5.10 (swiftlang-5.10.0.13 clang-1500.3.9.4)
Bug Summary and Steps to Reproduce
Bug Summary:
Steps to reproduce:
- Run the below program in gdb debugger
- set break at function subarr
- when breakpoint is hit, the locals variable starts to spin
Debugger Configurations
{
"tasks": [
{
"label": "compile and run cpp",
"type": "shell",
"command": "g++ -std=c++17 -o ${fileBasenameNoExtension} ${file} && ./${fileBasenameNoExtension} < input.txt > output.txt && cat output.txt",
"group": {
"kind": "build",
"isDefault": false
}
},
{
"label": "compile and run no input",
"type": "shell",
"command": "g++ -std=c++17 -o ${fileBasenameNoExtension} ${file} && ./${fileBasenameNoExtension}",
"group": {
"kind": "build",
"isDefault": false
}
},
{
"label": "compile and run c",
"type": "shell",
"command": "gcc -o ${fileBasenameNoExtension} ${file} && ./${fileBasenameNoExtension} < input.txt > output.txt && cat output.txt",
"group": {
"kind": "build",
"isDefault": false
}
},
{
"label": "compile and run python",
"type": "shell",
"command": "python3 ${file} < input.txt > output.txt && cat output.txt",
"group": {
"kind": "build",
"isDefault": false
}
},
{
"type": "cppbuild",
"label": "C/C++: clang++ build active file",
"command": "/usr/bin/clang++",
"args": [
"-fcolor-diagnostics",
"-fansi-escape-codes",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": false
},
"detail": "Task generated by Debugger."
},
{
"type": "cppbuild",
"label": "C/C++: clang build active file",
"command": "/usr/bin/clang",
"args": [
"-fcolor-diagnostics",
"-fansi-escape-codes",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": false
},
"detail": "Task generated by Debugger."
},
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "/usr/bin/g++",
"args": [
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": false
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
Debugger Logs
This is no launch.json file
Other Extensions
No response
Additional Information
Program being run
`#include <bits/stdc++.h>
int subarr(vector& nums, int p) {
int sum = 0;
int sz = nums.size();
for (int i = 0; i < sz; i++)
{
sum+=nums[i];
}
int target = sum % p;
unordered_map<int, int> umap; //<csum, idx>
umap[0] = -1;
int csum = 0;
int res = INT_MAX;
for (int i = 0; i < sz; i++)
{
csum += nums[i];
int other_half = (csum % p - target + p) % p;
if (umap.find(other_half) != umap.end())
{
res = min(res, i - umap[other_half]);
}
umap[csum] = i;
}
return res != INT_MAX ? res : -1;
}
int main(int argc, char const *argv[])
{
vector v{3,1,4,2};
int p = 6;
auto res = subarr(v, p);
cout << res << endl;
return 0;
}
`
Guía de contribución
Primeros pasos
- Lee el issue completo y luego la guía de contribución del proyecto.
- Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
- Haz un fork del repositorio y trabaja en una rama.
- Abre un pull request que haga referencia al número del issue.
Línea de trabajo
Reproduce el problema con el programa C++ adjunto, establece un punto de interrupción en subarr y observa la vista Locals cuando la ejecución se detenga. Comprueba primero la configuración del depurador y los registros disponibles; se considera terminado cuando la vista Locals se renderiza en lugar de girar indefinidamente.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Stack tecnológico
- cpp, vscode
- Área
- developer-experience, tooling
- Tipo de issue
- Error
- Dificultad
- 4/5
- Tiempo estimado
- 3-5 días
- Estado de actividad
- Estancado
- Claridad
- Necesita aclaración
- Aptitud para principiantes
- 25/100