Question

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

Answer 1

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

int main(void)
{
    wchar_t str[] = L"2022CC++99";
    wchar_t* rest_of_the_str;

    unsigned long int unsigned_long_int = wcstoul(str, &rest_of_the_str, 10);

    printf("%lu\n", unsigned_long_int);

    printf("%ls", rest_of_the_str);

    return 0;
}




/*
run:

2022
CC++99

*/

 

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