Category Archives: C Programming

Parameter                                       Details expression expression of scalar type. message    string literal to be included in the diagnostic message. An assertion is a predicate that…

Parameter                                                                             Details Variable arguments are used by functions in the printf family (printf, fprintf, etc) and others to allow a function to be…

Parameter                                                                             Details Section 31.1: Signal Handling with “signal()” Signal numbers can be synchronous (like SIGSEGV – segmentation fault) when they are triggered by…

All preprocessor commands begins with the hash (pound) symbol #. A C macro is just a preprocessor command that is defined using the…

Section 29.1: Basic Random Number Generation The function rand() can be used to generate a pseudo-random integer value between 0 and RAND_MAX (0 and RAND_MAX…

In C, some expressions yield undefined behavior. The standard explicitly chooses to not define how a compiler should behave if it encounters such…

Section 27.1: errno When a standard library function fails, it often sets errno to the appropriate error code. The C standard requires at…

Section 26.1: Pass a 2D-array to a function Passing a 2d array to a functions seems simple and obvious and we happily write:…

Section 25.1: Parameters are passed by value In C, all function parameters are passed by value, so modifying what is passed in callee…

Function pointers are pointers that point to functions instead of data types. They can be used to allow variability in the function that…