Here we introduce you to some primitive data types available in Solidity.
+`,zB=({prev:s,next:a})=>r.jsx(A,{version:KB,title:FB,description:MB,cyfrinLink:SB,html:JB,prev:s,next:a,codes:xB}),DB="0.8.26",EB="Primitive Data Types",QB="Primitive data types",TB="https://www.cyfrin.io/glossary/primitive-data-types-solidity-code-example",LB=[{fileName:"Primitives.sol",code:"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"}],UB=`
Here we introduce you to some primitive data types available in Solidity.
boolean
uint256
@@ -12210,7 +12210,7 @@ you can't send ether.
/*
In Solidity, the data type byte represent a sequence of bytes.
- Solidity presents two type of bytes types :
+ Solidity presents two types of bytes :
- fixed-sized byte arrays
- dynamically-sized byte arrays.
@@ -12475,7 +12475,7 @@ How to Sign and Verify
return num;
}
}
-`,Zf=({prev:s,next:a})=>r.jsx(A,{version:uf,title:yf,description:mf,cyfrinLink:bf,html:kf,prev:s,next:a,codes:wf}),Wf="0.8.26",Gf="Structs",Bf="An example of how to use structs in Solidity",ff="https://www.cyfrin.io/glossary/structs-solidity-code-example",Vf=[{fileName:"StructDeclaration.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNjsKLy8gVGhpcyBpcyBzYXZlZCAnU3RydWN0RGVjbGFyYXRpb24uc29sJwoKc3RydWN0IFRvZG8gewogICAgc3RyaW5nIHRleHQ7CiAgICBib29sIGNvbXBsZXRlZDsKfQo="},{fileName:"StructImport.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNjsKCmltcG9ydCAiLi9TdHJ1Y3REZWNsYXJhdGlvbi5zb2wiOwoKY29udHJhY3QgVG9kb3MgewogICAgLy8gQW4gYXJyYXkgb2YgJ1RvZG8nIHN0cnVjdHMKICAgIFRvZG9bXSBwdWJsaWMgdG9kb3M7Cn0K"},{fileName:"Structs.sol",code:"Ly8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IE1JVApwcmFnbWEgc29saWRpdHkgXjAuOC4yNjsKCmNvbnRyYWN0IFRvZG9zIHsKICAgIHN0cnVjdCBUb2RvIHsKICAgICAgICBzdHJpbmcgdGV4dDsKICAgICAgICBib29sIGNvbXBsZXRlZDsKICAgIH0KCiAgICAvLyBBbiBhcnJheSBvZiAnVG9kbycgc3RydWN0cwogICAgVG9kb1tdIHB1YmxpYyB0b2RvczsKCiAgICBmdW5jdGlvbiBjcmVhdGUoc3RyaW5nIGNhbGxkYXRhIF90ZXh0KSBwdWJsaWMgewogICAgICAgIC8vIDMgd2F5cyB0byBpbml0aWFsaXplIGEgc3RydWN0CiAgICAgICAgLy8gLSBjYWxsaW5nIGl0IGxpa2UgYSBmdW5jdGlvbgogICAgICAgIHRvZG9zLnB1c2goVG9kbyhfdGV4dCwgZmFsc2UpKTsKCiAgICAgICAgLy8ga2V5IHZhbHVlIG1hcHBpbmcKICAgICAgICB0b2Rvcy5wdXNoKFRvZG8oe3RleHQ6IF90ZXh0LCBjb21wbGV0ZWQ6IGZhbHNlfSkpOwoKICAgICAgICAvLyBpbml0aWFsaXplIGFuIGVtcHR5IHN0cnVjdCBhbmQgdGhlbiB1cGRhdGUgaXQKICAgICAgICBUb2RvIG1lbW9yeSB0b2RvOwogICAgICAgIHRvZG8udGV4dCA9IF90ZXh0OwogICAgICAgIC8vIHRvZG8uY29tcGxldGVkIGluaXRpYWxpemVkIHRvIGZhbHNlCgogICAgICAgIHRvZG9zLnB1c2godG9kbyk7CiAgICB9CgogICAgLy8gU29saWRpdHkgYXV0b21hdGljYWxseSBjcmVhdGVkIGEgZ2V0dGVyIGZvciAndG9kb3MnIHNvCiAgICAvLyB5b3UgZG9uJ3QgYWN0dWFsbHkgbmVlZCB0aGlzIGZ1bmN0aW9uLgogICAgZnVuY3Rpb24gZ2V0KHVpbnQyNTYgX2luZGV4KQogICAgICAgIHB1YmxpYwogICAgICAgIHZpZXcKICAgICAgICByZXR1cm5zIChzdHJpbmcgbWVtb3J5IHRleHQsIGJvb2wgY29tcGxldGVkKQogICAgewogICAgICAgIFRvZG8gc3RvcmFnZSB0b2RvID0gdG9kb3NbX2luZGV4XTsKICAgICAgICByZXR1cm4gKHRvZG8udGV4dCwgdG9kby5jb21wbGV0ZWQpOwogICAgfQoKICAgIC8vIHVwZGF0ZSB0ZXh0CiAgICBmdW5jdGlvbiB1cGRhdGVUZXh0KHVpbnQyNTYgX2luZGV4LCBzdHJpbmcgY2FsbGRhdGEgX3RleHQpIHB1YmxpYyB7CiAgICAgICAgVG9kbyBzdG9yYWdlIHRvZG8gPSB0b2Rvc1tfaW5kZXhdOwogICAgICAgIHRvZG8udGV4dCA9IF90ZXh0OwogICAgfQoKICAgIC8vIHVwZGF0ZSBjb21wbGV0ZWQKICAgIGZ1bmN0aW9uIHRvZ2dsZUNvbXBsZXRlZCh1aW50MjU2IF9pbmRleCkgcHVibGljIHsKICAgICAgICBUb2RvIHN0b3JhZ2UgdG9kbyA9IHRvZG9zW19pbmRleF07CiAgICAgICAgdG9kby5jb21wbGV0ZWQgPSAhdG9kby5jb21wbGV0ZWQ7CiAgICB9Cn0K"}],Yf=`
You can define your own type by creating a struct.
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You can define your own type by creating a struct.
They are useful for grouping together related data.
Structs can be declared outside of a contract and imported in another contract.
// SPDX-License-Identifier: MIT
@@ -12506,7 +12506,7 @@ How to Sign and Verify
todos.push(todo);
}
- // Solidity automatically created a getter for 'todos' so
+ // Solidity automatically creates a getter for 'todos' so// you don't actually need this function.functionget(uint256 _index)
public
@@ -13167,4 +13167,4 @@ echidna EchidnaTestTimeAndCaller.sol --contract EchidnaTestTimeAndCaller
return internalFunc();
}
}
-