It appears complex but it is very simple. In this case (*foo) is a pointer to the function, whose argument is of int* type and return type is void*.← Prev Next → Learn to Code Learn and practice coding side-by-side. NEW C language Course 115+ coding exercises Javascript ...
In the above example 'remove_whitespace' function takes a string str and a function pointer modify as arguments. It loops through each character of the string using a for loop. If the current character is not a whitespace character (determined using the isspace function from the ctype.h librar...
Output: Copied string is: C language snippets. The my_memcpy() function takes three arguments: a pointer to the destination buffer, a pointer to the source buffer, and the number of bytes to copy. It then casts the pointers to char * and const char * respectively, so that it can copy...
Pointer to Member Function Giving Errors Nov 29, 2008 at 2:59am heckler0077 (2) I've been working out of Sam's Teach Yourself C++ in 21 Days. One of the exercises in the book involved the following code that I wrote: 12345678910111213141516171819202122232425262728293031...
Repeat Example 4.15, but this time, use a pointer to pass the array elements to the function. Solution The required program listing is given in Figure 4.34. Here, an integer pointer is used to pass the array elements to the function and the function elements are manipulated using pointer ope...
In the following example, we are moving the file pointer to a specific position. When we will read the file the pointer will start from the specified position. import os # Open a file and create a file descriptor fd = os.open("exp.txt", os.O_RDWR|os.O_CREAT) # Write a string ...
DoTheWork+0x8 (00401024) // // Else it wasn't, so replace the Old Frame Pointer // 0040102d 5d pop ebp // // Return back to the calling function. // Whatever is in EAX is effectively returned. // 0040102e c3 ret /// // Function: demo2!DoTheWork: (In C) ...
va_arg( someArgumentPointer, someType ); va_end is used in situations when we would like to stop using someArgumentPointer. One more situation in which we use this macro is when we need to reset our list position as well. This macro will be used like this: ...
HANDLE CreateThread( [in, optional] LPSECURITY_ATTRIBUTES lpThreadAttributes, // A pointer to a SECURITY_ATTRIBUTES structure that specifies a security descriptor for the new thread and determines whether child processes can inherit the returned handle. [in] SIZE_T dwStackSize, // The initial size...
Go to the exercises in thepack installerand copy Exercise 12.4. Open timer_LPC17xx.c and go to the end of the file. Here, we create a structure that defines the driver functions for each supported timer. In this case, we create atypedefstructure for the driver API. ...