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How to use gdb in Ubuntu Terminal

Here's a practical, minimal guide for using GDB in Ubuntu terminal — from launching to setting breakpoints and navigating your code. 🧰 Step 1: Compile with Debug Symbols Use -g and disable optimizations ( -O0 preferred for debugging): bash Copy Edit g++ -g -O0 -o myprog myprog.cpp 🚀 Step 2: Launch GDB bash Copy Edit gdb ./myprog You'll see a (gdb) prompt. 🎯 Step 3: Set Breakpoints You can set breakpoints in three main ways : ✅ a. At a function gdb Copy Edit (gdb) break main ✅ b. At a specific file and line gdb Copy Edit (gdb) break myprog.cpp:42 ✅ c. At a method in a class gdb Copy Edit (gdb) break MyClass::doSomething If the symbol is mangled (C++), GDB usually demangles automatically, especially if compiled with -g . ▶️ Step 4: Run the Program gdb Copy Edit (gdb) run 🧭 Step 5: Navigate Command Meaning next or n Step over current line step or s Step into function call finish Run until current function returns continue or c Continue until...

Roasting Maize Safely (discussions with chatGpt)

Query:
Is it good to eat maige by cooking it in gas over flame n then eat
ChatGPT said:

Yes, it's perfectly fine and safe to eat maize (corn) roasted directly over a gas flame, and it’s a common method used in many countries, including India. Here's the science and safety behind it:


Benefits of Roasting Maize Over Flame:

  1. No Added Fats or Oil:

    • Roasting doesn’t need oil or butter, making it a low-calorie snack.

  2. Preserves Nutrients:

    • Compared to boiling, roasting retains more water-insoluble vitamins like B-complex (thiamine, niacin).

  3. Better Flavor:

    • Direct flame gives a smoky, charred flavor due to the Maillard reaction, which enhances taste without chemicals.

  4. Kills Germs:

    • The high temperature of flame helps kill most bacteria or parasites present on the surface.


⚠️ Precautions While Roasting Over Gas:

  1. Don't Burn It Black:

    • Over-charring can produce polycyclic aromatic hydrocarbons (PAHs) which are harmful in high amounts. Moderate browning is okay, avoid carbonization.

  2. Clean the Surface:

    • If you’re roasting on an open flame, ensure the maize is clean and dry. Also ensure your stove burner is clean (no dripping oil or soot).

  3. Use Tongs:

    • Avoid burning your hands — use steel tongs for uniform rotation.

  4. Ventilation:

    • Roast in a well-ventilated kitchen to avoid smoke accumulation.


Conclusion:

Roasting maize directly over a gas flame is safe, healthy, and tasty if you avoid charring it too much. It’s a great snack — high in fiber, antioxidants, and complex carbs.

Would you like tips on how to make it more flavorful (like adding lemon, salt, or masala)?

You said:
There are 2 kindly of maige that can be eaten like that: kochi n hard one Any remarks for them
ChatGPT said:

Yes, you're absolutely right — there are generally two types of maize (corn) commonly roasted over flame and eaten in India and other regions:


🌽 1. Kochi Bhutta (Tender Maize / Baby Corn-like)

Characteristics:

  • Soft, milky, slightly sweet.

  • Grains are pale yellow or light.

  • Can be chewed easily, juicy.

  • Common in monsoon season.

Remarks:

  • Best for flame-roasting — it becomes sweet and smoky when roasted.

  • Easy to digest, especially for kids and older people.

  • Nutritious — retains moisture and some soluble vitamins.

  • ⚠️ Spoils quickly — must be eaten fresh; stale tender corn ferments easily.


🌽 2. Pakko Bhutta (Mature / Hard Maize)

Characteristics:

  • Kernels are hard, deep yellow or white.

  • Less juicy, more chewy or tough.

  • Used in rural areas for roasting or cattle feed.

Remarks:

  • ✅ Can be roasted but becomes dry and tough, requiring more chewing.

  • ⚠️ May cause jaw strain or gas/bloating if undercooked or eaten in large quantity.

  • ⚠️ Avoid for children or elderly with weak teeth.

  • Good energy source — high in starch, slow-digesting carbs.


🔬 Scientific View:

TypeTextureDigestibilityNutritional ProfileCooking Suitability
Kochi (tender)SoftEasyHigher in sugars, vitamin CBest for roasting
Hard (mature)ToughModerate/HardMore starch, less sugarRoast only if softened first (e.g., partial boiling)

📝 Recommendations:

  • For taste + health, prefer kochi bhutta.

  • If only hard maize is available, you can:

    • 🔹 Boil for 5–10 minutes, then roast — improves texture.

    • 🔹 Grind and make makki roti or cornmeal dishes.

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