Learn and Master C Programming - Using 'strcpy' and 'strcat' functions

The video tutorial covers the use of string functions strcpy and strcat in C programming. It begins with setting up a project in Visual Studio, followed by a detailed explanation of how to use strcpy to copy strings and strcat to concatenate strings. The tutorial addresses the deprecation of strcpy due to security risks and demonstrates how to use safer alternatives. It also highlights the dangers of buffer overruns and how to prevent them by specifying buffer sizes. The video concludes with a demonstration of using safe string functions to ensure secure coding practices.

What is the primary purpose of the strcpy function in C?

• To compare two strings

• To copy a string from source to destination

• To find the length of a string

• To concatenate two strings

Why is it important for the destination buffer to be larger than the source string in strcpy?

• To ensure the source string is not modified

• To prevent buffer overflow

• To allow for additional string concatenation

• To improve program execution speed

What does the strcat function do?

• Finds the length of a string

• Compares two strings

• Concatenates two strings

• Copies a string from source to destination

How does strcat differ from strcpy?

• Both functions perform the same operation

• strcat overwrites the destination, strcpy appends to it

• strcat is used for integer operations

• strcat appends to the destination, strcpy overwrites it

What is a potential risk of using the strcpy function?

• It can cause a buffer overrun

• It can make the code unreadable

• It can slow down the program

• It can lead to syntax errors

What is the purpose of using the safer version of strcpy?

• To allow for dynamic memory allocation

• To enable multi-threading

• To increase the speed of string operations

• To ensure the buffer size is checked

What additional parameter does the safer version of strcpy require?

• The length of the source string

• The size of the destination buffer

• The type of string being copied

• The number of times to copy the string