#ifndef LIB_STRINGF_H
#define LIB_STRINGF_H

#include "streamfer.h"

// template<class... Args>: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security]

static inline PRINTF(2,0) string vstringf_const(size_t sizemax,const char *fmt,va_list ap) {
  string str(sizemax+1,0);
  const int got=vsnprintf(&str[0],str.length(),fmt,ap);
  if (got!=ssize_t(sizemax))
    fatal("stringf*(): expected=%zu got=%d fmt=\"%s\" str=\"%s\"",sizemax,got,fmt,str.c_str());
  str.resize(sizemax);
  return str;
}

static inline PRINTF(2,3) string stringf_const(size_t sizemax,const char *fmt,...) {
  va_list ap;
  va_start(ap,fmt);
  const string str(vstringf_const(sizemax,fmt,ap));
  va_end(ap);
  return str;
}

static inline PRINTF(1,2) string stringf(const char *fmt,...) {
  // 189: for i in activetick.data/;do find $i -name "*.xz";done|xargs xz -dc|perl -lne 'BEGIN{$m=0;}if (length($_)>$m){$m=length $_;print $m;}'
  static const int sizetry(192-1/*+1->malloc()*/);
  string str(sizetry,0);
  va_list ap;
  va_start(ap,fmt);
  const int got(vsnprintf(&str[0],sizetry,fmt,ap));
  va_end(ap);
  assert(got>=0);
  if (got>=sizetry) {
    str.resize(got+1);
    va_start(ap,fmt);
    const int got2(vsnprintf(&str[0],str.length(),fmt,ap));
    va_end(ap);
    assert(got2==got);
  }
  str.resize(got);
  return str;
}

#endif /* LIB_STRINGF_H */