[Term Entry] C Keywords: typedef

content/c/concepts/keywords/terms/typedef/typedef.md

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+---
+Title: 'typedef'
+Description: 'Defines a new name for an existing data type in C to improve code readability and maintainability.'
+Subjects:
+  - 'Code Foundations'
+  - 'Computer Science'
+Tags:
+  - 'Alias'
+  - 'Data Types'
+  - 'Variables'
+  - 'Keywords'
+CatalogContent:
+  - 'learn-c'
+  - 'paths/computer-science'
+---
+
+The **`typedef`** keyword in `C` is used to create a new name, for the existing data type. It is mostly used in simplifying complicated data types. This makes it easier to understand and maintain codes. `typedef` does not create a new type but assigns a new name to the existing type.
+
+## Syntax
+
+Here's the basic syntax for `typedef`:
+
+```pseudo
+typedef existing_data_type new_data_type;
+```
+
+- `existing_type`: The data type to assign a new name to.
+- `new_name`: The new name for the existing type.
+
+## Example
+
+Here’s a simple example demonstrating the use of `typedef` to create a new name for an existing data type in `C`:
+
+```c
+#include <stdio.h>
+// Using typedef to create a new name for int
+typedef int Integer;
+
+int main() {
+    Integer age = 25;  // Integer is now an alias for int
+    printf("Age: %d\n", age);
+    return 0;
+}
+```
+
+In this example, `Integer` is created as a new name (alias) for the `int` data type, making the code easier to read and maintain:
+
+```shell
+Age: 25
+```