verständnisfragen

This commit is contained in:
Johannes Theiner 2018-04-18 00:42:05 +02:00
commit 798156b41d
10 changed files with 313 additions and 22 deletions

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@ -10,11 +10,48 @@ struct PascalString{
char characters[256]; // chars of some character string
};
int main(int argc, char** argv, char** envp) {
PascalString s = {3, '1', '0', '0'};
PascalString s2 = {4, 'f', 'f', 'f', 'f'};
return 0;
void printPascalString(PascalString string) {
for(int i = 0; i <= string.length; ++i) {
print(string.characters[i]);
}
println("");
}
PascalString dualOr(PascalString a, PascalString b) {
PascalString longString = a.length >= b.length ? a : b;
PascalString shortString = a.length >= b.length ? b : a;
PascalString result = {longString.length};
/*
for(int i = longString.length; i >= 0; --i) {
if(i >= shortString.length) result.characters[i] = '0';
else result.characters[i] = shortString.characters[i];
}
*/
for(int i = 0; i < longString.length; i++) {
if(i <= shortString.length) {
result.characters[i] = longString.characters[i];
//println("lang ", longString.characters[i]);
}
else{
result.characters[i] = longString.characters[i] | shortString.characters[i];
//println("beides ", shortString.characters[i] | longString.characters[i]);
}
}
return result;
}
int main(int argc, char** argv, char** envp) {
printPascalString(dualOr({2, '0', '1'}, {2, '1', '0'}));
printPascalString(dualOr({2, '0', '1'}, {3, '1', '1', '1'}));
printPascalString(dualOr({3, '1', '1', '1'}, {4, '1', '1', '0', '1'}));
printPascalString(dualOr({3, '0', '0', '0'}, {5, '1', '1', '0', '1', '0'}));
printPascalString(dualOr({3, '0', '1', '1'}, {6, '1', '1', '0', '1', '0', '1'}));
printPascalString(dualOr({2, '0', '1'}, {6, '1', '1', '0', '1', '0', '1'}));
printPascalString(dualOr({2, '1', '1'}, {6, '1', '0', '0', '1', '0', '0'}));
return 0;
}

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02_MENT/Testat2/a.out Executable file

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02_MENT/Testat2/build.sh Executable file
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@ -0,0 +1,7 @@
#!/bin/bash
rm *.out
clang++-6.0 -std=c++14 main_02_MENT.cpp
./a.out

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@ -0,0 +1,51 @@
// file: main_02_MENT.cpp
// THIS IS C++, use clang++
#include <iostream>
#include "../../helpers/println.hpp"
struct PascalString{
int length; // number of chars used
char characters[256]; // chars of some character string
};
void printPascalString(PascalString s) {
for(int i = 0; i <= s.length; ++i) {
print(s.characters[i]);
}
println("");
}
PascalString bitwiseDualOr(PascalString a, PascalString b) {
PascalString shortString = a.length <= b.length ? a : b;
PascalString longString = a.length <= b.length ? b : a;
PascalString result = {longString.length};
for(int i = 1; i <= shortString.length; ++i) {
result.characters[result.length -i] = longString.characters[longString.length -i] | shortString.characters[shortString.length -i];
//println(result.length -i, ": ",result.characters[result.length -i]," l=",longString.length -i, ":",longString.characters[longString.length -i]," s=",shortString.length -i,":", shortString.characters[shortString.length -i]);
}
for(int i = (longString.length - shortString.length)-1; i >= 0 ; --i) {
result.characters[i] = longString.characters[i];
//println(i, ": ", result.characters[i]);
}
return result;
}
int main(int argc, char** argv, char** envp) {
printPascalString(bitwiseDualOr({2, '0', '1'}, {2, '1', '0'}));
printPascalString(bitwiseDualOr({2, '0', '1'}, {3, '1', '1', '1'}));
printPascalString(bitwiseDualOr({3, '1', '1', '1'}, {4, '1', '1', '0', '1'}));
printPascalString(bitwiseDualOr({3, '0', '0', '0'}, {5, '1', '1', '0', '1', '0'}));
printPascalString(bitwiseDualOr({3, '0', '1', '1'}, {6, '1', '1', '0', '1', '0', '1'}));
printPascalString(bitwiseDualOr({2, '0', '1'}, {6, '1', '1', '0', '1', '0', '1'}));
printPascalString(bitwiseDualOr({2, '1', '1'}, {6, '1', '0', '0', '1', '0', '0'}));
return 0;
}

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@ -52,6 +52,28 @@ PascalString intToDual(int n) {
return string;
}
char intToHexChar(int n) {
switch(n) {
case 0: return '0';
case 1: return '1';
case 2: return '2';
case 3: return '3';
case 4: return '4';
case 5: return '5';
case 6: return '6';
case 7: return '7';
case 8: return '8';
case 9: return '9';
case 10: return 'A';
case 11: return 'B';
case 12: return 'C';
case 13: return 'D';
case 14: return 'E';
case 15: return 'F';
default: return 'X';
}
}
PascalString intToHex(int n) {
int i = std::to_string(n).length();
PascalString string = {i};
@ -70,26 +92,30 @@ int getInt(char character) {
}
PascalString bitwiseDualAnd(PascalString a, PascalString b) {
PascalString result = {a.length, '0'};
PascalString result = {b.length};
for(int i = a.length; i >= 0; --i) {
if(a.length < i) result.characters[i] = a.characters[i];
println("i: ", i, " ", getInt(a.characters[i]) & getInt(b.characters[i]));
result.characters[i] = getInt(a.characters[i]) & getInt(b.characters[i]);
for(int i = 0; i <= b.length; ++i) {
result.characters[i] = a.characters[i] & b.characters[i];
}
return result;
}
PascalString bitwiseHexAnd(PascalString a, PascalString b) {
PascalString result = {a.length, '0'};
PascalString bitwiseOctalAnd(PascalString a, PascalString b) {
PascalString result = {b.length, '0'};
for(int i = b.length; i >= 0; --i) {
if(a.length < i) result.characters[i] = a.characters[i];
println("i: ", i, " ", a.characters[i] & b.characters[i]);
for(int i = 0; i <= b.length; ++i) {
result.characters[i] = a.characters[i] & b.characters[i];
}
return result;
}
PascalString bitwiseHexAnd(PascalString a, PascalString b) {
a = intToDual(hexStringToInt(a));
b = intToDual(hexStringToInt(b));
PascalString result = bitwiseDualAnd(a, b);
return result;
}
@ -102,7 +128,7 @@ println("===================================");
}
int main(int argc, char** argv, char** envp) {
PascalString s = {3, '1', '0', '0'};
PascalString s2 = {4, 'f', 'f', 'f', 'f'};
println(hexStringToInt(s));
@ -137,13 +163,19 @@ int main(int argc, char** argv, char** envp) {
printPascalString(intToHex(1956));
line();
printPascalString(bitwiseDualAnd({3, '1', '1', '0'}, {4, '1', '1', '1', '0'}));
printPascalString(bitwiseDualAnd({3, '1', '1', '0'}, {3, '1', '1', '1'}));
line();
printPascalString(bitwiseDualAnd({3, '1', '1', '1'}, {4, '1', '1', '1', '0'}));
printPascalString(bitwiseDualAnd({3, '1', '1', '1'}, {3, '1', '1', '1'}));
line();
printPascalString(bitwiseDualAnd({3, '1', '1', '0'}, {4, '1', '1', '1', '1'}));
printPascalString(bitwiseDualAnd({3, '0', '1', '0'}, {3, '1', '0', '1'}));
line();
printPascalString(bitwiseDualAnd({3, '0', '1', '0'}, {4, '1', '0', '1', '1'}));
printPascalString(bitwiseDualAnd({3, '1', '0', '0'}, {3, '1', '1', '1'}));
line();
printPascalString(bitwiseOctalAnd({2, '6', '3'}, {2, '1', '2'}));
line();
printPascalString(bitwiseHexAnd({2, 'A', '1'}, {2, 'C', '2'}));
return 0;
}

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@ -0,0 +1,164 @@
// file: main_02_MENT.cpp
// THIS IS C++, use clang++
#include <iostream>
#include "../helpers/println.hpp"
struct PascalString{
int length; // number of chars used
char characters[256]; // chars of some character string
};
char cStringArea[1024];
int hexDigitToInt(char hexDigit) {
int value = 0;
if(hexDigit > 47 && hexDigit < 58)
value = hexDigit - 48;
if(hexDigit > 96 && hexDigit < 103)
value = hexDigit - 97 + 10;
return value;
}
int hexStringToInt(PascalString binaryDigits) {
int returnValue = 0;
for(int i = 0; i <= binaryDigits.length; ++i) {
returnValue += binaryDigits.characters[i];
}
return returnValue;
}
void printPascalString(PascalString s) {
for(int i = 0; i <= s.length; i++) {
print(s.characters[i]);
}
println(""
);
}
PascalString intToDual(int n) {
int i = std::to_string(n).length() * 4;
PascalString string = {i};
while(n >= 1) {
string.characters[i] = (n % 2) + '0';
n = n / 2;
i--;
}
return string;
}
char intToHexChar(int n) {
if(n > 9) {
switch(n) {
case 10: return 'A';
case 11: return 'B';
case 12: return 'C';
case 13: return 'D';
case 14: return 'E';
case 15: return 'F';
default: return 'X';
}
}
else return n + '0';
}
PascalString intToHex(int n) {
int i = std::to_string(n).length();
PascalString string = {i};
while(n >= 1) {
string.characters[i] = intToHexChar(n % 16);
n = n / 16;
i--;
}
return string;
}
PascalString bitwiseDualAnd(PascalString a, PascalString b) {
PascalString shortString = a.length < b.length ? a : b;
PascalString longString = a.length > b.length ? a : b;
PascalString result = {longString.length, '0'};
for(int i = longString.length; i >= 0; --i) {
if(shortString.length < i) result.characters[i] = longString.characters[i];
result.characters[i] = longString.characters[i] & shortString.characters[i];
}
return result;
}
PascalString bitwiseHexAnd(PascalString a, PascalString b) {
PascalString shortString = a.length < b.length ? a : b;
PascalString longString = a.length > b.length ? a : b;
PascalString result = {longString.length, '0'};
for(int i = longString.length; i >= 0; --i) {
if(shortString.length < i) result.characters[i] = longString.characters[i];
result.characters[i] = longString.characters[i] & shortString.characters[i];
}
return result;
}
int to_c_string(PascalString s) {
}
void line() {
println("===================================");
}
int main(int argc, char** argv, char** envp) {
PascalString s = {3, '1', '0', '0'};
PascalString s2 = {4, 'f', 'f', 'f', 'f'};
println(hexStringToInt(s));
line();
println(hexStringToInt(s2));
line();
println(hexDigitToInt('d'));
line();
println(hexDigitToInt('9'));
line();
println(hexDigitToInt('2'));
printPascalString(s2);
line();
int controlRegister = 128;
controlRegister |= 64+32;
controlRegister ^=16;
controlRegister &= 128+64;
controlRegister <<= 1;
println(controlRegister);
line();
println(intToHexChar(6));
line();
println(intToHexChar(10));
line();
printPascalString(intToDual(4106));
line();
printPascalString(intToHex(965));
line();
printPascalString(intToHex(1956));
line();
printPascalString(bitwiseDualAnd({3, '1', '1', '0'}, {4, '1', '1', '1', '0'}));
line();
printPascalString(bitwiseDualAnd({3, '1', '1', '1'}, {4, '1', '1', '1', '0'}));
line();
printPascalString(bitwiseDualAnd({3, '1', '1', '0'}, {4, '1', '1', '1', '1'}));
line();
printPascalString(bitwiseDualAnd({3, '0', '1', '0'}, {4, '1', '0', '1', '1'}));
return 0;
}

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