C error Variably modified at the file scope [duplicate]

问题

This question already has answers here:

Variably modified array at file scope (6 answers)

Variably modified 'variable_name' at file scope error? (1 answer)

Closed 7 years ago.

yeah so im new to c and i came across an error when dealing with the following code.:

typedef struct{
    int head;
    int length;
    Customer customer[MAX_LENGTH];

} CustomerCi;

and the error that came out was:

"error: variably modified 'customer' at the file scope"

i have no idea how to fix this and any help would be appreciated (keep in mind that im new to this if it seems like a dumb problem).

回答1:

Replace MAX_LENGTH with a literal value:

#define MAX_LENGTH 32

for example.

来源：https://stackoverflow.com/questions/20292639/c-error-variably-modified-at-the-file-scope