cgetc

In C, "getc" reads only three lines from text file

My Code is HERE

int main(){
  FILE *fp;
  fp = fopen("dic.txt", "r");
  while(getc(fp) != EOF){
    if(getc(fp) == ' '){
        printf("up ");
    }
  }
}

My dic.txt is HERE

dic.txt

my predict is that "up up up up "
because, there are four space " "

but it printed "up " only one

what is problem?

Solution

  • You want this:

    #include <stdio.h>

int main() {
  FILE* fp;
  fp = fopen("dic.txt", "r");
  if (fp == NULL)
  {
    printf("Can't open file\n");
    return 1;
  }

  int ch;                            // int is needed her, not char !!
  while ((ch = getc(fp)) != EOF) {   // read one char and check if it's EOF in one go
    if (ch == ' ') {
      printf("up ");
    }
  }
}