software engineering Understand Pointers in C in depth In C, pointer refers to a specific memory location and gives the programmer finer control. There are several types of pointers like dangling pointer. We have explored everything in depth.
software engineering Understand use of Pointers (*) in C and C++ A pointer in C and C++ is a variable that contains a memory address which is usually the address/ location of another variable in the memory.
software engineering Ternary Operator in C Ternary operator in C is an alternative syntax for if else conditional statement. It is usually used to condense if else statements.
software engineering Get length of array in C and C++ In C and C++, we find the length of an array we need to use the sizeof operator and get the length as size of entire array divided by size of an element.
software engineering How to ban use of some functions in C and C++? The approach to prevent the use of functions is to replace the function definition (using macros) with a dummy definition with a message that the function is banned from use.
software engineering Introduction to Make and Makefile We have explained the concepts behind Make tool and Makefile which forms the basics of compiling and building executable for a C/ C++ project codebase.
software engineering strncmp vs strcmp in C The only difference between strncmp and strcmp in C is that strncmp compares only the first N characters while strcmp continues until the termination conditions are met.
software engineering Get address of a variable in C To get address of a variable in C, we use the address of (&) operator, the %p specifier to print it and a casting of (void*) on the address.
software engineering Rounding and Truncating numbers using math.h in C In this article, we have explored how to round and truncate numbers in C using the math.h library. that is round(), roundl(), trunc(), truncl() and others
software engineering strncmp in C strncmp is a function in C which is used to compare two array of characters upon N indexes and return if the first array is less, equal or greater than the second array.
software engineering strcmp in C strcmp is a function in C which is used to compared two strings that is array of characters and returns if the first array is greater, smaller or equal to the second array
software engineering qsort in C qsort in C is an in-built function for sorting array of any data types including structs. It, internally, uses a variant o Quick Sort and is a part of stdlib.h
software engineering gets() vs fgets() in C and C++ gets() and fgets() are functions in C language to take input of string with spaces in between characters. gets suffer from buffer overflow which is solved by fgets
software engineering ctype.h in C ctype.h header file of the C Programming Language provide several functions that are used to testing different characters and changing some properties.
software engineering Auto in C Auto is a storage class/ keyword in C Programming language which is used to declare a local variable, forward declaration of nested functions and non-contiguous memory allocation.
software engineering Volatile in C Volatile in C programming language is a keyword which is used with variables to inform the compiler not to apply any optimizations to code dealing with the variable.
software engineering Extern in C Extern is a keyword in C programming language which is used to declare a global variable that is a variable without any memory assigned to it. It is used to declare variables and functions in header files.
software engineering Register in C Register is a keyword in C which suggests the system to use register as a memory for a variable instead of RAM. This accelerates the reading and writing of memory
software engineering _Bool in C _bool is a keyword in C Programming language representing boolean data type. It is an alternative to bool in C.
software engineering List of C Compilers We have listed all major C compilers that has been in use. Some compilers were developed in 1980s (GNU GCC) while the recent ones are from 2017 (AOCC).
software engineering #if directive in C / C++ #if is a preprocessor directive in C to define conditional compilation. It can be used just like an if condition statement which impacts the compilation process
software engineering Scanf and Printf in C Printf() and Scanf() are inbuilt library functions in C language that perform formatted input and formatted output functions. These functions are defined and declared in stdio.h header file.
software engineering #include in C #include is a preprocessor directive in C and C++ to include the code from other files (header files + C/ C++ code) in the current file.
software engineering Using Assert.h in C In this article we'll talk about one of those header files, namely the assert.h header file. First we'll look at the purpose of this file, second we'll go over code examples and in the third part we'll dive a little deeper into the details of this header file and tips on how to use it.
software engineering Detect Operating System in C To check the operating system of the host in a C or C++ code, we need to check the macros defined by the compiler (GNU GCC or G++). For example, on Windows platform, the compiler has a special macro named _WIN32 defined.
