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10 years, 2 months ago.
simple command to output the number of lines of a text document?
Hello Community, I want to read from a text document the number of rows. My solution is definitely not the best:
LocalFileSystem local("local");
char buffer[128];
int u;
int main ()
{
FILE *fp1 = fopen("/local/Trace.txt","r");
while(fgets(buffer, 128, fp1)) {
u=u++;
}
printf("rows: %d ",u);
fclose(fp1);
...
Is there a simple command to output the number of lines of a text document? Or someone has a nicer solution?
Thank you
1 Answer
10 years, 2 months ago.
There is not much wrong with your solution. Instead of u=u++; just write u++; You could save some memory and avoid the hard limit on the line length by not reading a line at a time but a character at a time using fgetc() and counting the number of '\n'. If all your lines are the same length you could calculate the number of lines as filesize/linelength.