Question

How to convert the initial part of a string to long int in C

Answer 1

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

int main(void) {
    char str[64] = "31592871 c programming";

    long n = strtol(str, NULL, 10);

    printf("%ld\n", n);

    return(0);
}





/*
run:

31592871

*/

 

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