Computers and Programming

Simple program demonstrating conversion of cm to inches without implementing a function. This is simpler, but your ideal implementation may depend upon a variety of factors requiring your careful consideration. Repl: https://replit.com/@pereiradaniel/Convert-cm-to-inches-no-function Git repo: https://github.com/pereiradaniel/c_programs/blob/master/metric_imperial_conv/conv_alt.c  

Simple program demonstrating one way to convert cm to inches and display the result to the user. Repl: https://replit.com/@pereiradaniel/Convert-cm-to-inches-function Git repo: https://github.com/pereiradaniel/c_programs/blob/master/metric_imperial_conv/conv.c  

Demonstration of 6510 Assembly program that changes border and background colours in an infinite loop. This video shows how Turbo Macro Pro and the Super Snapshot cartridge can be used with the C64 mini.

A program that converts decimal and binary numbers. Repl: https://replit.com/@pereiradaniel/Dual-BinaryDecimal-Converter Git repo: https://github.com/pereiradaniel/c_programs/blob/master/bin_dec_conv/dual_conversion/dual_conv.c  

Convert a decimal number to binary using a non-recursive function. Repl: https://replit.com/@pereiradaniel/Decimal-to-binary-non-recursive Git repo:  https://github.com/pereiradaniel/c_programs/blob/master/bin_dec_conv/non_recursive/bin_dec_conv.c  

Recursive method of decimal to binary conversion. Repl: https://replit.com/@pereiradaniel/Decimal-to-binary-recursive Git repo: https://github.com/pereiradaniel/c_programs/tree/master/bin_dec_conv/recursive  

Calculator now catches divide by zero error by testing to see if either user inputs are equal to 0, otherwise it executes the division. Repl: https://replit.com/@pereiradaniel/Calculator-Exponent-function-added Git repo: https://github.com/pereiradaniel/c_programs/blob/master/calc/calc4.c  

Added exponent function to calculator, with improved messages for user. Repl: https://replit.com/@pereiradaniel/Calculator-Exponent-function-added Git repo: https://github.com/pereiradaniel/c_programs/blob/master/calc/calc3.c  

Calculator program now loops until user quits. Repl: https://replit.com/@pereiradaniel/Calculator-Main-loop-added Git repo: https://github.com/pereiradaniel/c_programs/blob/master/calc/calc2.c  

Basic calculator program for possible future improvements. Repl: https://replit.com/@pereiradaniel/Calculator-program Git repo: https://github.com/pereiradaniel/c_programs/blob/master/calc/calc.c  

Improvement to exercise 4-3 using a different type of switchable for loop, with compiler examination.  Repl: https://replit.com/@pereiradaniel/Improved-asc-desc-for-loop-added-to-existing-project Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/refactor5.c  

Improvement to exercise 4-3 using a different type of switchable for loop, with compiler examination.  Repl: https://replit.com/@pereiradaniel/Improved-asc-desc-for-loop-added-to-existing-project Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/refactor5.c  

Improved ascending and descending for loop with alternate example and compilation comparison. Repl: https://replit.com/@pereiradaniel/Exercise-4-3-refactor-4 Git repo: https://github.com/pereiradaniel/c_programs/blob/master/asc_desc_for/asc_desc_for2.c  

A for loop that can run forward or backward. Repl: https://replit.com/@pereiradaniel/Ascending-or-descending-for-loop Git repo: https://github.com/pereiradaniel/c_programs/blob/master/asc_desc_for/asc_desc_for.c  

Added sorting by ascending or descending order. Repl: https://replit.com/@pereiradaniel/Exercise-4-3-refactor-4 Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/refactor4.c

Improvement of this program: https://youtu.be/1_ER9Gzsglw Repl: https://replit.com/@pereiradaniel/Exercise-4-3-refactor-3 Git repo (this project):  https://github.com/pereiradaniel/Exercise-4-3-refactor-3 Git repo (archive of projects):  https://github.com/pereiradaniel/beginning_c  

 

Refactor of previous program: https://youtu.be/pILnYM-qYB0 Display number of non-printable, printable, and total chars output by the program. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/refactor3.c

Refactored version of previous program: https://youtu.be/fYuV8NQ1ieo Program loops until user quits. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/refactor2.c

Refactored version of previous program: https://youtu.be/GPl3_Hsw6Ks00 User selects range of character codes to print. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/refactor.c

Refactored version of previous program: https://youtu.be/W8me8An2fA4 Extend the previous program to output the appropriate name, such as “newline”, “space”, “tab”, and so on, for each whitespace character. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_3/exercise4_3.c

A program that will output the printable characters for character code values from 0 to 127. Each character code is printed along with its symbol. Make sure the columns are aligned. UPGRADES to original exericse!      - User selects between 1-8 columns to display.      - CHAR_MAX to control upper limit of char codes. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_2/exercise4_2.c

Write a program that will generate a multiplication table of a size entered by the user. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/exercises/4_1/exercise4_1.c

Perform calculation within the third control expression of a for loop. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch4/compact_for/compact.c

Summing an array of integers without making the off by one error. Git repo: https://github.com/pereiradaniel/c_programs/blob/master/sum/sum.c

Short program demonstrating how the off by one error can happen in for loops. Git repo: https://github.com/pereiradaniel/c_programs/blob/master/counter/counter.c

Refactor of Exercise 3-4 without using the goto statement. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch3/exercises/3_4/refactor/refactor.c

Modify the last example in the chapter that implemented a calculator so that the user is given the option to enter y or Y to carry out another calculation, and n or N to end the program. (Note: You’ll have to use a goto statement for this here, but you’ll learn a better way of doing this in the next chapter.) Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch3/exercises/3_4/exercise3_4.c

Write a program that will calculate the price for a quantity entered from the keyboard, given that the unit price is $5 and there is a discount of 10 percent for quantities over 30 and a 15 percent discount for quantities over 50. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch3/exercises/3_3/exercise3_3.c

Short program that prompts the user to enter the date as three integer values for the month, the day in the month, and the year, and outputs the date in the form "31st December 2003" when the user enters 12 31 2003, for example. Git repo: https://github.com/pereiradaniel/beginning_c/blob/master/ch3/exercises/3_2/exercise3_2.c Blog: https://pereiradpg.blogspot.com/2023/01/c-program-that-formats-date-input-by.html Book: http://www.mosaic-industries.com/embedded-systems/_media/c-ide-software-development/learning-c-programming-language/beginning-c-5th-edition-ivor-horton.pdf

Short demonstration of how scanf can be used to accept input for more than one variable assignment. In this case, an integer and a double are assigned. Note what happens when a double is entered for an integer, and vice versa.

Demonstration of Pac-Man cartridge for NTSC Commodore 64.

Demonstration of Pac-Man cartridge for PAL Commodore 64.

Demonstrating how a ternary statement works in C. https://github.com/pereiradaniel/c_programs/blob/master/ternary/ternary.c #include <stdio.h> int main(int argc, char* argv[]) { int n = -1; // Set to -1 for do while loop. printf("\nEnter number from 0-100: \n"); // prompt user for input. // Loops until user enters valid input: do { scanf(" %d", &n); n < 0 || n > 100 ? printf("Invalid number! Try again.\n") : printf("Valid!\n"); } while(n < 0 || n > 100); // Detect whether number is less than or greater than 50: n > 50 ? printf("Number is greater than 50.\n") : printf("Number is less than 50.\n"); return 0; } https://github.com/pereiradaniel/c_programs/blob/master/ternary/ternary.txt ==119== Memcheck, a memory error detector ==119== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==119== Using Valgrind-3.15.0 and LibVEX;

https://github.com/pereiradaniel/c_programs/blob/master/nested/nested.c // Basic demonstration of nested for loops. #include <stdio.h> int main(int argc, char* argv[]) { // Outer loop will run until i equals 3 // (three times if starting at 0) for (int i=0; i<3; ++i) { printf("\ti = %d\n", i); // Nested loop will until j equals 6 // (three times if starting at 9) for (int j=9; j>6; --j) printf("\t\tj = %d\n", j); } return 0; } https://github.com/pereiradaniel/c_programs/blob/master/nested/nested.txt ==150== Memcheck, a memory error detector ==150== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==150== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info ==150== Command: ./nested ==150== i = 0 j = 9 j = 8 j = 7 i = 1 j = 9 j = 8 j =

Demonstration of Zamzara for Commodore 64.