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.
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
Problem 1PE
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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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