boisverd

$>./filecopy.o < mytextfile.txt
The expression getchar() != EOF evaluates to: 1 when false.
ello, my name is Denis and I live in a house. My house is in Montreal and at night I eat dinner.
The value of check is: 0 when true.
EOF = -1

$>vim filecopy.c
  1 #include <stdio.h>
  2
  3 int main(void){
  4
  5      int c, check;
  6      system("clear");
  7      c = getchar() != EOF;
  8      printf("The expression getchar() != EOF evaluates to: %d when false.\n",c);
  9      while ((c = getchar()) != EOF )
 10           putchar(c);
 11
 12      check = getchar() != EOF; //save the value of the check
 13      printf("The value of check is: %d when true.\n",check); //print the value of the check
 14      printf("EOF = %d\n",EOF);
 15 }

tempconvFor.c
  1 #include <stdio.h>
  2
  3 /*print fahrenheit-celsius table */
  4
  5 /* F = (9/5)*C+32 & C = (F-32) * (5/9) */
  6
  7 int main(){
  8
  9 int fahr;
 10
 11
 12 system("clear"); //linux bash shell screen clear function
 13 printf("Temperature Conversion Chart\n");
 14 printf("Celsius\tFahrenheit\n");
 15 for(fahr = 300; fahr >= 0; fahr = fahr - 20)
 16      printf("%7.2f\t%10d\n",(5.0/9.0)*(fahr - 32.0),fahr);
 17 }

./tempconvFor.o
Temperature Conversion Chart
Celsius Fahrenheit
 148.89        300
 137.78        280
 126.67        260
 115.56        240
 104.44        220
  93.33        200
  82.22        180
  71.11        160
  60.00        140
  48.89        120
  37.78        100
  26.67         80
  15.56         60
   4.44         40
  -6.67         20
 -17.78          0

Ex1-3 tempconv.c
  1 #include <stdio.h>
  2
  3 /*print fahrenheit-celsius table */
  4
  5 /* F = (9/5)*C+32 & C = (F-32) * (5/9) */
  6
  7 int main(){
  8
  9 float fahr, celsius;
 10 int lower, upper, step;
 11
 12 lower = 0;
 13 upper = 200;
 14 step = 20;
 15
 16 fahr = lower;
 17 system("clear"); //linux bash shell screen clear function
 18 printf("Temperature Conversion Chart\n");
 19 printf("Fahrenheit\tCelsius\n");
 20 while ( fahr <= upper ){
 21      celsius = (fahr-32.0) * (5.0/9.0);
 22      printf("%10.2f\t%7.2f\n",fahr,celsius);
 23      fahr = fahr + step;
 24 }
 25 }

ex1-4
tempconv1.c
  3 /*print fahrenheit-celsius table */
  4
  5 /* F = (9/5)*C+32 & C = (F-32) * (5/9) */
  6
  7 int main(){
  8
  9 float fahr, celsius;
 10 int lower, upper, step;
 11
 12 lower = -20;
 13 upper = 100;
 14 step = 10;
 15
 16 celsius = lower;
 17 system("clear"); //linux bash shell screen clear function
 18 printf("Temperature Conversion Chart\n");
 19 printf("Celsius\tFahrenheit\n");
 20 while ( celsius <= upper ){
 21      fahr = (9.0/5.0*celsius) + 32.0;
 22      printf("%7.2f\t%10.2f\n",celsius,fahr);
 23      celsius = celsius + step;
 24 }
 25 }

#include <stdio.h>

int main(){

        printf("Hello World!\k");
}