/* existsnc.cpp by K. Tsuru*/
/************************************
Search directory for constant files
"e.snc", "pi.snc" and "log10.snc".
**************************************/
#ifndef SN_H
#include "sn.h"
#endif
#ifndef SNC_FILE_H
#include "sncfile.h"    // for three constant files
#endif
bool ExistDirectory(const char* const dir);

bool ExistSncDirectory(char* sncDir){
// search the upper directory
    strcpy(sncDir, ".");
    strcat(sncDir, SNC_DIR);    // ../
    if( ExistDirectory((const char*)sncDir) ) return true;

// search the current directory
    strcpy(sncDir, SNC_DIR);
    if(ExistDirectory(sncDir)) return true;

    sncDir[0] = '\0';   // not found
    return false;
}