Explain how can I read and write comma-delimited text?

Question Posted / ram singh

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Explain how can I read and write comma-delimited text?..

Answer / Purshottam Singh

In C, you can use functions like `fopen`, `fread`, and `fwrite` from the `stdio.h` library to read and write comma-separated values (CSV) from a file. Here's an example of how to read data from a CSV file:

```c
#include <stdio.h>
#include <stdlib.h>

void read_csv(const char *filename) {
FILE *file = fopen(filename, "r");
if (file == NULL) {
printf("Error: Unable to open file.n");
return;
}

char line[1024];
while (fgets(line, sizeof(line), file)) {
// Process each line
}

fclose(file);
}
```

To write data to a CSV file, you can modify the example above and use `fprintf` instead of `fgets`. Remember to escape commas in your data using backslashes (e.g., `,`) if necessary.

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