c check if argument is integer
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;
}how to know a type of a numbe in c
int num;
char term;
if(scanf("%d%c", &num, &term) != 2 || term != 'n')
printf("failuren");
else
printf("valid integer followed by enter keyn");Copyright © 2021 Codeinu
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