Question

How to convert a wide string chars up to the first non-numeric char to long integer in C

Answer 1

#include <stdio.h>
#include <wchar.h>

int main(void)
{
    wchar_t str[] = L"2023CC++17";
    wchar_t* rest_of_the_str;

    long int long_int = wcstol(str, &rest_of_the_str, 10);

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

    printf("%ls", rest_of_the_str);

    return 0;
}




/*
run:

2023
CC++17

*/

 

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