What are file system APIs in C?
File system APIs in C allow you to interact with the file system, enabling operations like reading, writing, and managing files.
Can you give me an example of how to read a file using these APIs?
Sure! You can use functions like fopen(), fread(), and fclose() to read a file. Here's a simple example:
#include <stdio.h>
int main() {
FILE *file;
char buffer[100];
file = fopen("example.txt", "r");
if (file) {
fread(buffer, sizeof(char), 100, file);
printf("File content: %s\n", buffer);
fclose(file);
} else {
printf("Error opening file.\n");
}
return 0;
}
What about writing to a file?
To write to a file, you can use fopen() with the "w" mode and fwrite(). Here's an example:
#include <stdio.h>
int main() {
FILE *file;
const char *text = "Hello, World!";
file = fopen("output.txt", "w");
if (file) {
fwrite(text, sizeof(char), strlen(text), file);
fclose(file);
printf("File written successfully.\n");
} else {
printf("Error opening file.\n");
}
return 0;
}
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