src/base/string/makef.c


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#include "internal.h"

// makef returns a new dynamic string object
string
string·makef(byte *fmt, ...)
{
    vlong  n;
    string s;
    va_list args;
    char bytes[256];

    s = string·nnmake(nil, 0, arrlen(bytes));

    va_start(args, fmt);
    do{
        n = fmt·vnsprint(bytes, arrlen(bytes), fmt, args);
        string·append(&s, bytes);
    }while(n==arrlen(bytes));
    va_end(args);

    return s;
}