how to read delimited text variables in a line

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C++/CLI

I am trying to use the following code to read three space-delimited variables (:
mm/s meter kg

but my code only read the first variable ppv correctly.

Please help me to get the space-delimiter working for any space

//
        char  string1[600]=" ";
        char *next_token1;
        char seps1[] = " ";
        CString ppv="";
        CString size="";
        CString dist="";
//
        fscanf_s(f_ptr2,"%s\n",string1,90);
        ppv = strtok_s(string1, seps1,&next_token1);
        size = strtok_s(NULL, seps1,&next_token1);
        dist = strtok_s(NULL, seps1,&next_token1);
<pre lang="c++"><pre lang="text"><pre lang="c++"><pre lang="c++">