Avatar of nconfer
nconfer
 asked on

How to check string to make sure it only contains numbers and no letters

I'm working on a c program and have run into a quick problem.

I am declaring a string using the following line of code
char teststring[255];

I'm then loading a line from a dat file I have into the string, and want to check and make sure that the string only has numbers in it and no letters or other characters before converting it to an integer.

can anyone point me in the right direction?  thanks.
C

Avatar of undefined
Last Comment
nconfer

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
ozo

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
nconfer

ASKER
Thank you for the help.  Much appreciated!
This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.
rwheeler23