Exercise 1-3 (Temperature heading)

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Exercise 1-3     K&R, p. 13

Exercise 1-3. Modify the temperature conversion program to print a heading above the table.

tempfh.c         download

#include <stdio.h> // for printf()

/*
print Fahrenheit-Celsius table
for fahr = 0, 20, ..., 300
(floating-point version)
*/

int main()
{
float fahr, celsius; // main vars used for output
int lower, upper, step; // vars used for computation

lower = 0; // lower limit of temperature table
upper = 300; // upper limit
step = 20; // step size
// Heading:
printf("Fahrenheit-Celsius\n");
printf("conversion table\n");
printf("------------------------\n");

fahr = lower;
while(fahr <= upper)
{
celsius = (5.0 / 9.0) * (fahr-32.0);
printf("%3.0f %6.1f\n", fahr, celsius);
fahr += step; // fahr = fahr + step;
}
}
/*
gcc tempfh.c -o tempfh
./tempfh
Fahrenheit-Celsius
conversion table
------------------------
0 -17.8
20 -6.7
40 4.4
60 15.6
80 26.7
100 37.8
120 48.9
140 60.0
160 71.1
180 82.2
200 93.3
220 104.4
240 115.6
260 126.7
280 137.8
300 148.9
*/

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