Type checking in C

Barry Brown March 3, 2023
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Barry Brown

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I'm a professor of computer science at Sierra College near Sacramento, California.

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Ingnok Portable Monitor, Ultra Slim 15.6 Inch FHD IPS Laptop Screen Extender with Adjustable Stand, USB C Compatible, Ideal for Travel and Office

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65W 45W USB C Charger for Lenovo IdeaPad Yoga Slim//Duet/Flex/Book Chromebook 7i 9i 5G 5 6 7 9 720 720S 730 730S S730 C740 910 920 C930 C940 S940 C630 S540 IdeaPad 3 5 Pro 2-in-1 Chrome Series Laptop

65W 45W USB C Charger for Lenovo IdeaPad Yoga Slim//Duet/Flex/Book Chromebook 7i 9i 5G 5 6 7 9 720 720S 730 730S S730 C740 910 920 C930 C940 S940 C630 S540 IdeaPad 3 5 Pro 2-in-1 Chrome Series Laptop

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New Slim 65W USB C Laptop Charger for Lenovo ThinkPad Yoga 7i 7 9i 9 2-in-1 Yoga Book 9i Gen 10 ThinkBook 16 15 14 Gen 8/7 13s 13x 14s IdeaPad Slim/Pro 5X 5i 5 3X 3i 3 2-in-1 Type C Power Cord

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135W USB C AC Adapter Charger for Lenovo ThinkPad Z16 P16s P15s P14s E16 E15 E14 T16 Yoga/Slim Pro 9 7 6 7i 9i Book 9 ThinkBook 16 14p 14 15 14s IdeaPad Slim/Pro 9 7 5 Legion 9 Laptop ADL135YSDC3A

135W USB C AC Adapter Charger for Lenovo ThinkPad Z16 P16s P15s P14s E16 E15 E14 T16 Yoga/Slim Pro 9 7 6 7i 9i Book 9 ThinkBook 16 14p 14 15 14s IdeaPad Slim/Pro 9 7 5 Legion 9 Laptop ADL135YSDC3A

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New Slim 65W USB C Laptop Charger for Lenovo ThinkPad Yoga 7i 7 9i 9 2-in-1 Yoga Book 9i Gen 10 ThinkBook 16 15 14 Gen 8/7 13s 13x 14s IdeaPad Slim/Pro 5X 5i 5 3X 3i 3 2-in-1 Type C Power Cord

New Slim 65W USB C Laptop Charger for Lenovo ThinkPad Yoga 7i 7 9i 9 2-in-1 Yoga Book 9i Gen 10 ThinkBook 16 15 14 Gen 8/7 13s 13x 14s IdeaPad Slim/Pro 5X 5i 5 3X 3i 3 2-in-1 Type C Power Cord

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135W USB C AC Adapter Charger for Lenovo ThinkPad Z16 P16s P15s P14s E16 E15 E14 T16 Yoga/Slim Pro 9 7 6 7i 9i Book 9 ThinkBook 16 14p 14 15 14s IdeaPad Slim/Pro 9 7 5 Legion 9 Laptop ADL135YSDC3A

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140W C to Magnetic 3 Charger, Compatible with MacBook Air 13, 15 Inch/Mac Book Pro 14, 16 Inch, M1/M2/M3/M4 from 2021/2022/2023/2024/2025 Models, 6.6FT【Original Quality】

140W C to Magnetic 3 Charger, Compatible with MacBook Air 13, 15 Inch/Mac Book Pro 14, 16 Inch, M1/M2/M3/M4 from 2021/2022/2023/2024/2025 Models, 6.6FT【Original Quality】

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USB C Hub, MacBook Pro Adapter USB C Dongle with 4K HDMI,Thunderbolt 3 100W Power Delivery Port,USB C 5Gbps Data Port,SD/TF Card Reader,2 USB 3.0 Ports Compatible for MacBook Pro Air 2022/2021/2020

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16.4Ft/5M Long USB C Cable, Durable USB A to USB C Charging and Data Sync Cord, Power Extension Cable for Any USB-C Enabled Security Cameras Phones Tablets Switch Pro Controller and More

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INIU USB C Cable, [3 Pack, 6.6+6.6+1.6ft] 3.1A QC 3.0 Fast Charging Type C Cable, Nylon Braided USB A to USB C Phone Charger Data Cord for iPhone 16/15 Pro Max Samsung S23 S22 Note 10 LG V20 etc

INIU USB C Cable, [3 Pack, 6.6+6.6+1.6ft] 3.1A QC 3.0 Fast Charging Type C Cable, Nylon Braided USB A to USB C Phone Charger Data Cord for iPhone 16/15 Pro Max Samsung S23 S22 Note 10 LG V20 etc

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Short USB C Cable [4-Pack 8 inch], SUMPK 3A Fast Charging USB 2.0 Data Transfer to Type C Phone Charger Cord Nylon Braided Compatible with Samsung Galaxy S10 S9, Pixel 3, LG V30, Charging Station

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2 Pack Rechargeable Controller Battery Pack for Xbox Series X|S and Xbox One with 10FT USB C Charging Cable and Micro USB Adapter 6amLifestyle Battery Pack Xbox Play and Charge Kit

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65W USB C Laptop Charger for Dell Latitude 5540 5420 5520 5430 5320 7275 7440 e5440 5450 7430 7400 5550 5530 9410 9510 XPS 13 15 Chromebook Fast Charging for Dell Computer Type C AC Adapter Power Cord

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Laptop Screen Extender, 18.5" Dual Monitors Stacked Folding Triple Monitor (Wins/Mac) 1080P 100hz USB C Travel Extended Computer Display Triple Portable Monitor for Laptop PC Windows Mac

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100W USB C Universal Laptop Charger Fit for Lenovo MacBook HP Dell Acer Asus Thinkpad Google MSI LG Samsung Huawei, ROG Ally, Steam Deck, Chromebook Computer and All USB-C Devices

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