What is the output of the following code snippet? int age = 0; string str_age = "45"; age atoi (str_age); cout << age << endl; = 0 45 There is no output due to a compilation error. There is no output due to a run-time error.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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The problem statement asks: 

**"What is the output of the following code snippet?"**

```cpp
int age = 0;
string str_age = "45";
age = atoi(str_age);
cout << age << endl;
```

Options provided are:
- ( ) 0
- ( ) 45
- ( ) There is no output due to a compilation error.
- ( ) There is no output due to a run-time error.

**Explanation:**

This code snippet attempts to convert a string (`str_age`) to an integer using the `atoi()` function. However, `atoi()` requires a C-style string (character array) rather than a C++ `string` object. As a result, this will lead to a compilation error unless the `string` is converted to a C-style string using the `c_str()` method, like this: `age = atoi(str_age.c_str());`.

Therefore, the correct answer is:
- (X) There is no output due to a compilation error.
Transcribed Image Text:The problem statement asks: **"What is the output of the following code snippet?"** ```cpp int age = 0; string str_age = "45"; age = atoi(str_age); cout << age << endl; ``` Options provided are: - ( ) 0 - ( ) 45 - ( ) There is no output due to a compilation error. - ( ) There is no output due to a run-time error. **Explanation:** This code snippet attempts to convert a string (`str_age`) to an integer using the `atoi()` function. However, `atoi()` requires a C-style string (character array) rather than a C++ `string` object. As a result, this will lead to a compilation error unless the `string` is converted to a C-style string using the `c_str()` method, like this: `age = atoi(str_age.c_str());`. Therefore, the correct answer is: - (X) There is no output due to a compilation error.
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