Max string length using scanf -> ANSI C

Question

I have:

#define MAX_STR_LEN 100

and I want to put into scanf pattern so I can control the string length:

scanf         


        

Answer 1

I wasn't happy with any of these solutions, so I researched further, and discovered GNU GCC macro stringification

which can be used as:

#define XSTR(A) STR(A)
#define STR(A) #A
#define MAX_STR_LEN 100
scanf("%"XSTR(MAX_STR_LEN)"[^\n]s", sometext)

Maybe VS2010 offers something similar?