File Operations

[meandmyipod]

I'm writing this function to read in data from a .txt file containing double variables in the form:

1.00 2.00
2.00 3.00

How do i ensure that any empty lines after [2.00,3.00] doesn't get read in and stored?

The code below still reads in and store the value.

int read_data(double data[][2]){		// return number of set of data
	
	int i=0;
	
	FILE *fp;							// File Pointer Declaration
	fp = fopen("test.txt","r");			// Open the file for reading

	if(fp == NULL)						// If file is empty/not present, print error
		printf("File Error");	
	else {
		while (!feof(fp)){				// Else carry on till end of file is reached
			fscanf(fp,"%lf",&data[i][0]);
			fscanf(fp,"%lf",&data[i][1]);
			printf("\nRow %d %.2lf %.2lf",i,data[i][0],data[i][1]);
			i++;
			}
		}

		fclose(fp);						// Close file 
		
	return i-1;								// Numbers of rows returned

[rags_to_riches]

You read the manual page for fscanf and pay particular attention to the section titled Return Values

[Salem]

Also feof() -> SourceForge.net: Feof - cpwiki