c check if char is an operator
char o = '+'; //Or some other character
if (o == '%' || o == '/' || o == '*' || o == '+' || o == '-') {
//Do something
//...
}c check if char is an operator
char o = '+'; //Or some other character
if (o == '%' || o == '/' || o == '*' || o == '+' || o == '-') {
//Do something
//...
}check command line input is a number in c
bool isNumber(char number[])
{
int i = 0;
//checking for negative numbers
if (number[0] == '-')
i = 1;
for (; number[i] != 0; i++)
{
//if (number[i] > '9' || number[i] < '0')
if (!isdigit(number[i]))
return false;
}
return true;
}Copyright © 2021 Codeinu
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