Question

How to read the first 5 character from file using fread in C

Answer 1

#include <stdio.h>

int main() {
    const char* filename = "d:\\data.txt";

    FILE* fp = fopen(filename, "r");

    char ch;
    int total_chars = 5;
    while (fread(&ch, sizeof(char), 1, fp) != 0 && total_chars--) {
        putchar(ch);
    }

    fclose(fp);

    return 0;
}



/*
run

c c++

*/

 

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Answer 2

#include <stdio.h>

int main() {
    const char* filename = "d:\\data.txt";

    FILE* fp = fopen(filename, "r");

    char buffer[6] = { 0 };
    fread(buffer, sizeof(buffer[0]) * 5, 1, fp);
    printf("%s", buffer);

    fclose(fp);

    return 0;
}



/*
run

c c++

*/

 

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