finding the type of a input variable

[Unregistered]

Hi,

I have a quick question.

I am designing a program that lets a user either input an int or a string . Is there a method I can use that will return the type of the input value as I need to do different things if they have typed in a int rather than a string.


thank you

[ninebit]

<ctype.h>

int isalnum( int c ); // returns true if c is a particular representation of an alphanumeric character.

int isalpha( int c ); // returns true if c is a particular representation of an alphabetic character.

__isascii( int c ); // returns true if c is a particular representation of an ASCII character.

Sorry... got no funktion to test yer whole string

[elad]

accept input only as the string. Pass each char of the input strings to isnum(). If isnum() returns 0 at any char then inut must be considered a string of char and not an int. If no char in the input string fails the test, then convert the string to an int with atoi(), assuming the value of the integer is small enough to fit. Otherwise use atol() if the value is above 35000 (give or take a little). If the only non numerical value is a single period/dot/decimal point, then you can use atof() to convert string to a float.