This one was made entirely by me, but(SUPRISE!!) it has a problem. The idea is it to locate letters whitin a word and after replace the found letters by number, producing some sort of primitive code for example A = 1. Here's the code: #include<iostream> #include<string> using namespace std; int main(){ enum fields{ABC_C, ABC_V, NUMBER, FIELDS_NR}; const int ABC_NR = 24; string abc[ABC_NR][FIELDS_NR] = { {"A", "a", "1"}, {"B", "b", "2"}, {"C", "c", "3"}, {"D", "d", "4"}, {"E", "e", "5"}, {"F", "f", "6"}, {"G", "g", "7"}, {"H", "h", "8"}, {"I", "i", "9"}, {"J", "j", "10"}, {"K", "k", "11"}, {"L", "l", "12"}, {"M", "m", "13"}, {"N", "n", "14"}, {"O", "o", "15"}, {"P", "p", "16"}, {"Q", "q", "17"}, {"R", "r", "18"}, {"S", "s", "19"}, {"T", "t", "20"}, {"U", "u", "21"}, {"V", "v", "22"}, {"X", "x", "23"}, {"Z", "z", "24"} }; cout << "Demonstrating Array: \n"; for(int i = 0; i<ABC_NR; ++i){ for(int j = 0; j<FIELDS_NR; ++j){ cout << abc[i][j]; } cout << endl; } cout << endl; string word = "Hello"; cout << "The test word is " << word << endl; cout << "Testing Consonants\n"; for(int i = 0; i<(ABC_NR*2); ++i){ string tempC = abc[i][ABC_C]; int consonant_nr = word.find(tempC); if(consonant_nr != string::npos){ char letterC = word[consonant_nr]; cout << "Found the consonant " << letterC << " in the word\n"; }else{ cout << abc[i][ABC_C] << " wasn't found on the word\n"; }//end if }//end for cout << "Testing Vogals: \n"; for(int i = 0; i<(ABC_NR*2); ++i){ string tempV = abc[i][ABC_V]; int vogal_nr = word.find(tempV); if(vogal_nr != string::npos){ char letterV = word[vogal_nr]; cout << "Found the vogal(s) " << letterV << " in the word\n"; }else{ cout << abc[i][ABC_V] << " wasn't found on the word\n"; }//end if }//end for system("Pause"); }//end main() The problem is that system("Pause") doesn't work and the app shuts down imidiatly, why? Am I giving any command that acts as the Enter Key being pressed? Or is it a more complex error? Best Regards AMD ATHLON X2 5200 2.6ghz; ASUS M2N-E SLI; 2GB DDR800 KINGSTON; ASUS GF8600GTS; Seagate 7200rpm 320GB;

The problem is that system("Pause") doesn't work and the app shuts down imidiatly, why? Am I giving any command that acts as the Enter Key being pressed? Or is it a more complex error? You're over thinking it. The problem is a segfault; your program isn't even making it to the system("Pause");. Why? Because of this line (there's two of 'em): for(int i = 0; i<(ABC_NR*2); ++i){

Thanks for your answer but... ...isn't *2 multiplying by 2? EDIT: As soon as I clicked the confirm post message i understood, i cant change a const and im trying to, right? AMD ATHLON X2 5200 2.6ghz; ASUS M2N-E SLI; 2GB DDR800 KINGSTON; ASUS GF8600GTS; Seagate 7200rpm 320GB;

No, the array is 24 elements long. You're trying to iterate through it 24*2 times. As soon as you hit the 25th element, it bombs w/ a segfault.

What Razor said is right. By the way, you're not testing consonants and "vogals" (vocals? vowels? bagels?); you seem to be testing capital letters and small letters (uppercase and lowercase in the U.S.) Are you Greek by any chance?

I'm Portuguese, we use the terms "Maiusculas" and "Minusculas", and yes, US talking, i mean to test the uppercase and the lowercase letters.(lol...what a silly error, it aint the vowels or the consonants i want to test its uppercase and lowercase...LOL) I still haven't finished it, it still needs the Actual "word to number conversion" part of the code, i dont know if this is the best way to do it, can you give me some kind of hints? Best Regards AMD ATHLON X2 5200 2.6ghz; ASUS M2N-E SLI; 2GB DDR800 KINGSTON; ASUS GF8600GTS; Seagate 7200rpm 320GB;

How would I change words into numbers? I'd probably use the letter's value, and stringstream to do the formatting: #include <iostream> #include <string> #include <sstream> #include <iomanip> inline bool notSymbol(unsigned char c) { const unsigned char mask = ~('A' ^ 'a'); return (c >= '0' && c <= '9') || ((c & mask) >= 'A' && (c & mask) <= 'Z'); } int main(int argc, char *argv[]) { std::string s = "Hello World! 0123 xyz"; std::string::iterator si; std::ostringstream out; out.fill('0'); out.setf(std::stringstream::hex, std::stringstream::basefield); out.setf(std::stringstream::uppercase); for (si = s.begin(); si < s.end(); ++si) { std::cout << *si << " = " << (char)*si - '0' << '\n'; if (notSymbol(*si)) out << std::setw(2) << (char)*si - '0'; else out << *si; } std::cout << out.str() << std::endl; system("PAUSE"); return EXIT_SUCCESS; }