从文件中读取字符。 C语言

Question

This is the file.

X   1   0   1
1   X   X   1
1   0   1   0

1   1   0   X
0   X   1   1
1   X   1   0  

This is my code.. Version 1.

char cha2[1];
int patternStored[180];
for(a=0;a<(numberOfPatterns*12);a++)
    {
        fscanf(patternMatFile,"%1s",cha2);
        if(cha2[0]=='X')
        {
            patternStored[a]=2;
        }
        else
        {
            patternStored[a]=atoi(cha2);
        }
    }

The purpose of the code is to read a single character at a time and save it into the array the above code works fine but..

at the end of the loop, i am having this error

Run-Time Check Failure #2 - Stack around the variable 'cha2' was corrupted.

This is the second version.

char cha[4];
int patternStored[180];
for(a=0;a<(numberOfPatterns*12);a++)
    {
        fscanf(patternMatFile,"%c",cha);
        if(cha[0]=='X')
        {
            patternStored[a]=2;
        }
        else
        {
            patternStored[a]=atoi(cha);
        }
    }

The second version doesn't have error. But it only works with %d .. only digits..

I actually doesn't know the proper way to get a single character from file using fscanf , especially the % thing.

Tkz..

Answer 1

要获取字符，您将需要使用%c 。