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Do not attempt to modify a string literal. Use a named array of characters to obtain a modifiable string.

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Noncompliant Code Example

In this non-compliant noncompliant code example, the char pointer p is initialized to the address of a string literal. Attempting to modify the string literal results in undefined behavior.

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char a[] = "string literal";
a[0] = 'S';

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Noncompliant Code Example

In this non-compliant noncompliant example, the mktemp() function modifies its string argument.

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