int main(){
double temperature = 0; // 気温
char unit; // 単位
double result;
cout << "気温を入力してください。（c: 摂氏, f: 華氏）" << endl;
while(cin >> temperature >> unit){
switch(unit){
case 'c':
if(!int_check(ctof(temperature)))
error("int型で表すことができません。");
cout << " -> " << (int)ctof(temperature) << "℉" << endl;
break;
case 'f':
if(!int_check(ftoc(temperature)))
error("int型で表すことができません。");
cout << " -> " << (int)ftoc(temperature) << "℃" << endl;
break;
default:
cout << "そのような単位は入力できません。" << endl;
break;
}
}
}
int main()
{
try {
cout << "This program can convert Celsius to Fahrenheit and vice-versa.\n";
cout << "To convert fahrenheit to celsius type in: 45f or 45c for celsius to fahrenheit.\n";
double temp;
string temp_type;
cin >> temp >> temp_type;
if (temp_type == "c") {
double f = ctof(temp);
cout << "The fahrenheit equivalent of " << temp << " celsius is: " << f << endl;
}
else if (temp_type == "f") {
double c = ftoc(temp);
cout << "The celsius equivalent of " << temp << " fahrenheit is: " << c << endl;
}
else {
cerr << "Invalid input.\n";
return 1;
}
}
catch(runtime_error e) {
cerr << e.what();
}
return 0;
}
int main(void) {
int i;
for (i = LOWER; i < UPPER; i = i + STEP)
printf("%3d\t%6.1f\n", i, ftoc(i));
return 0;
}
main(){
int f;
for(f = 0; f <= 300; f = f + 20){
float c = ftoc(f);
printf("%dF = %.1fC\n", f, c);
}
return 0;
}
int main(void)
{
float fahr;
for (fahr = 0; fahr <= MAXVAL; fahr += 20)
printf("%3.0f %6.1f\n", fahr, ftoc(fahr));
return EXIT_SUCCESS;
}
main()
{
int fahr, lower, upper, step;
lower = 0;
upper = 300;
step = 20;
for(fahr = lower; fahr <= upper; fahr = fahr + step)
printf ("%3d %6.1f\n", fahr, ftoc(fahr));
}
int main(){
double lower = 0;
double upper = 300;
double step = 20;
double fahr = lower;
printf("fahr celsius\n");
while (fahr <= upper){
double celsius = ftoc(fahr);
printf("%3.0f %6.1f\n", fahr, celsius);
fahr += step;
}
return 0;
}
int main()
try
{
cout << "Enter a temperature and unit of temperature (c = Celsius, f = Fahrenheit)\n";
double temp_to_convert = 0; //input temperature variable
cin >> temp_to_convert;
if (cin.fail()) {
cin.clear(); //clear cin error flags
cin.ignore(INT_MAX, '\n'); //clear cin buffer
error("entered non-numeric temperature!\n");
}
char entered_temp_unit = '?';
cin >> entered_temp_unit;
entered_temp_unit = tolower(entered_temp_unit);
double converted_temp = 0;
char converted_temp_unit = '?';
switch (entered_temp_unit) {
case 'f' :
converted_temp = ftoc(temp_to_convert);
converted_temp_unit = 'c';
break;
case 'c' :
converted_temp = ctof(temp_to_convert);
converted_temp_unit = 'f';
break;
default :
error("entered wrong temperature unit of measure!\n");
}
cout << "Converted temperature is " << converted_temp << " " << converted_temp_unit << '\n';
keep_window_open();
return 0;
}
catch (exception& e)
{
cerr << "error: " << e.what() << '\n';
keep_window_open();
return 1;
}
catch (...)
{
cerr << "Oops: unknown exception!\n";
keep_window_open();
return 2;
}
int main(int argc, char* argv[])
{
if (argc != 3) {
print_help(argv[0]);
exit(EXIT_FAILURE);
}
char* endptr = NULL;
errno = 0;
float temp = strtof(argv[2], &endptr);
if (errno || *endptr)
die("Your temperature is not a valid number.");
puts("Your argument converts to:");
switch (argv[1][1]) {
case 'c':
printf("%.2fK\n", ctok(temp));
printf("%.2fF\n", ctof(temp));
break;
case 'f':
printf("%.2fC\n", ftoc(temp));
printf("%.2fK\n", ftok(temp));
break;
case 'k':
printf("%.2fC\n", ktoc(temp));
printf("%.2fF\n", ktof(temp));
break;
default:
die("Unknown temperature type");
}
return EXIT_SUCCESS;
}
/* print Fahrenheit-Celsius table
* for fahr = 0, 20, ..., 300; floating-point version */
int main()
{
float fahr, celsius;
int lower, upper, step;
lower = 0;
upper = 300;
step = 20;
printf("%4s %7s\n", "Fahr", "Celsius");
fahr = lower;
while (fahr <= upper) {
celsius = ftoc(fahr);
printf("%4.0f %7.1f\n", fahr, celsius);
fahr = fahr + step;
}
return 0;
}
int main(void)
{
float fahr, celsius;
int lower, upper, step;
lower = 0; /* lower limit of temperature table */
upper = 300; /* upper limit */
step = 20; /* step size */
printf(" F C \n");
printf("----------\n");
fahr = lower;
while (fahr <= upper) {
celsius = ftoc(fahr);
printf("%3.0f %6.1f\n", fahr, celsius);
fahr = fahr + step;
}
return EXIT_SUCCESS;
}
int main(void) {
int tempf = 10;
int buf[BUF_SIZE] = {0, 0, 0, 0, 0};
int i, som;
int sum = 1, go = 1;
char c;
int num1, num2;
int num1t = 0;
int mul = 0, add = 0, sub = 0, div = 0;
char text[STRING_SIZE] = "Codenummer = 12345";
char text2[8] = "abcDEFG";
printf("%10s %10s\n", "Farenheit", "Celcious");
fflush(stdout);
for(; tempf <= 40; tempf += 2){
printf("%10d %10d\n", tempf, ftoc(tempf));
fflush(stdout);
}
printf("\n");
for(i = 0; i < BUF_SIZE; i++){
printf("Please enter a number:");
fflush(stdout);
scanf("%d", &buf[i]);
fflush(stdin);
}
printf("\nDe ingevoerde nummers zijn: ");
fflush(stdout);
som = 0;
for(i = 0; i < BUF_SIZE; i++){
printf("%d ", buf[i]);
som = som + buf[i];
}
printf("de som is: %d\n\n", som);
printf("de buffer word nu gevuld met de machten van 4\n");
fflush(stdout);
for(i = 0; i < 5; i++){
buf[i] = pow(4, i);
}
for(i = 0; i < BUF_SIZE; i++){
if(buf[i] < 70 && buf[i] > 10){
printf("%d, de %de macht van 4 is de eerste macht die tussen de 10 en 70 licht\n", buf[i], i);
fflush(stdout);
break;
}
}
printf("%s\n", text);
fflush(stdout);
int digits = 0;
for(i = 0; i < STRING_SIZE; i++){
if(isdigit(text[i])){
digits++;
}
}
printf("%d\n", digits);
fflush(stdout);
for(i = 0; i < 8; i++){
text2[i] = toupper(text2[i]);
}
strcpy(text, text2);
printf("%s\n\n", text);
fflush(stdout);
for(i = 0; i < STRING_SIZE; i++){
printf("%c, 0x%x\n", text[i], text[i]);
fflush(stdout);
}
printf("\nPlease enter a sum:");
fflush(stdout);
while(go){
while(sum){
c = getchar();
switch(c){
case '+':
add = 1;
break;
case '*':
mul = 1;
break;
case '/':
div = 1;
break;
case '-':
sub = 1;
break;
case 's':
printf("Programma gestopt");
fflush(stdout);
sum = 0;
return 0;
break;
default:
if(isdigit(c)){
if(num1t){
num2 = c - '0';
sum = 0;
go = 0;
break;
} else {
num1 = c - '0';
num1t = 1;
break;
}
} else {
printf("Error, voer iets anders in");
fflush(stdout);
sum = 0;
break;
}
}
}
sum = 1;
}
fflush(stdin);
if(add){
sum = num1 + num2;
} else if(sub){
sum = num1 - num2;
} else if(mul){
sum = num1*num2;
} else if(div){
sum = num1/num2;
}
printf("%d\n", sum);
fflush(stdout);
return 0;
}
