C / C++ Code Portfolio

C / C++ Code Portfolio
Pointers
Memory Handling
Function Pointers
Bit Operations
File Handling
Headers and Inline Functions
Class Example
Operator Overloading
Inheritance and Virtual Functions
Templates
Function Overloading
Recursion
STL
Example: Linked List
Example: Queue
This page contains C and C++ programming samples written by me, web site author Chris Berger. The purpose of this portfolio is to demonstrate my coding style and proficiency with C and C++.
Pointers
// This function returns the number of elements in a string

#include // "header" file that defines size_t type

size_t MyStrlen(const char *s1) // declare function myStrlen
{
const char *returnAddress = s1; // declare pointer to first element of s1
while (*s1++) // use while loop to simply increment pointer
{
if (!*s1) // if null character is encountered...
{
return (size_t)(s1 - returnAddress); // return the length of s1
}
}
return 0; // this return statement should never be executed
} // end function myStrlen
// This function lexigraphically compares two strings

int MyStrcmp(const char *s1, const char *s2)
{
do
{
if (*s1 > *s2) // if the char in s1 is greater than the char in s2
{
return 1; // s1 is lexigraphically greater than s2, return 1
}
else if (*s1 < *s2) // if the char in s1 is less than the char in s2
{
return -1; // s1 is lexigraphically less than s2, return -1
}
else // s1 is lexigraphically equal to s2, need to evalute more
continue;
} while ((*s1++ != '\0') && (*s2++ != '\0')); // increment the char to evaluate unless '\0' is found
// if the loop exists without returning a value, that means the strings were the same until '\0' was
// encountered in both, which means the strings are lexigraphically equal, return 0