In this article, we are going to discuss how to use the mmap() function in Linux. So, let’s get started. Header File: #include <sys/mman.h> Syntax: void * mmap (void *address, size_t length, int protect, int flags, int filedes, off_t offset) Arguments: The function takes ...
4. How to useThis example demonstrates how the SUMPRODUCT function works.Formula in cell B7:=SUMPRODUCT(B2:B4, C2:C4)Back to top4.1 Explaining formulaStep 1 - Multiplying values on the same rowThe first array is in cell range B2:B4 and the second array is in cell range C2:C4....
Let’s now look at some examples, to understand this function better. We’ll also be usingfork()along withexecvp(), so that we can still have our C program with us! Using execvp() in C / C++ - Some Examples If you want to see what exactly happens if you try to useexecvp()withou...
Example 9 – Using the PRODUCT Function to Multiply Two or More Outputs of the VLOOKUP Function We can use the PRODUCT function along with the VLOOKUP Function. Steps: In cell E5, enter the following formula: =PRODUCT(VLOOKUP(H5,$B$5:$C$12,2,0), VLOOKUP(H5,$E$5:$F$12,2,0)) ...
Use thegetnameinfoFunction to IP Address to Host Name in C Thegetnameinfofunction is used in conjunction withgetaddrinfoin this case, and it retrieves the hostnames for corresponding IP addresses. Notice that we process the user input from the first command-line argument and pass it as theget...
We’ll show you how to use the CONVERT function to change weight from pounds to grams. We have a list of weights in pounds in column C. Use the following formula in cell D5. =CONVERT(C5,"lbm","g") In this argument, C5 is the weight in pound mass, “lbm” is for pound mass ...
By using GCC, C, and C++ compilers the code will be generated, and assertions are enabled by default. If we are unable to use the assert() function, we must be disabled, so ndebug should be defined. It was decided to declare it using #define NDEBUG code; otherwise, the code compilatio...
process the user input until the new line orEOFis encountered, there are no guarantees it will fit in the fixed-sizecharbuffer. If we have to use a fixed buffer, we are responsible for keeping a count of the input size and stopping storing it in the buffer after the capacity is reached...
extern "C" { void f(); } void func(void) { std::cout<<"\n being used within C++ code\n"; } int main(void) { f(); func(); return 0; } The C function f() is declared within the notation extern “C” to tell the cpp compiler that it has C type linkage. ...
How to call the main function in C program - In this article, we'll discuss how to call the main() function in a C program. The main() function is the starting point and runs automatically when the program begins. However, there may be situations where y