ok so is there any way how can I compare two variables which are float , int or other type ?

I have following problem : I have condition and in netbeans its saying : warning: assignment makes integer from pointer without a cast if (var==varb+c) { sbod='b';} here is declaration : char sbod; float var,varb,c; any idea what might be worng with my condition ?

hi all I got following problem : I want to read and variable (age ) but when its not properly entered I want to write bad format or etc. example printf("enter age \n"); scanf ("%d,&age"); and I need to create a condition which is saying in case you enter string or non integer number (7,5 ) write bad format eter again thanks