bits 1-2/bits 1-2.cpp

@@ -1,85 +0,0 @@
-
-#include <iostream>
-#include <iomanip>
-#include <bitset>
-using namespace std;
-
-// инструменты для исследований и отладки
-// функции для печати
-void print_in_hex(uint8_t byte) {
-	cout << setfill('0') << setw(2) << hex << (unsigned)byte << " ";
-}
-
-void print_in_hex(const void* data, size_t size) {
-	for (size_t i = 0; i < size; i++) {
-		cout << setfill('0') << setw(2) << hex << (unsigned)*((uint8_t*)data + i) << " ";
-
-		if ((i + 1) % 16 == 0)
-			cout << endl;
-	}
-}
-
-void print_in_binary(uint8_t byte) {
-	cout << setfill('0') << setw(8) << bitset<8>(byte) << " ";
-}
-
-void print_in_binary(const void* data, size_t size) {
-	for (size_t i = 0; i < size; i++) {
-		cout << setfill('0') << setw(8) << bitset<8>(*((uint8_t*)data + i)) << " ";
-
-		if ((i + 1) % 4 == 0)
-			cout << endl;
-	}
-}
-
-// побитовый калькулятор
-int main()
-{
-	uint16_t a, b, c;
-
-	char op;
-	cout << "101 & 100"; //вывод примеров
-	cout << endl;
-	cout << "102 | 100";
-	cout << endl;
-	cout << "103 ^ 100";
-	cout << endl;
-	cin >> a >> op >> b;
-
-	// операции
-	switch (op)
-	{
-	case '&':
-		c = a & b;
-		break;
-
-	case '|':
-		c = a | b;
-		break;
-
-	case '^':
-		c = a ^ b;
-		break;
-
-	default:
-		c = 0;
-		break;
-	}
-
-	print_in_hex(&a, sizeof(a));
-	cout << op << " ";
-	print_in_hex(&b, sizeof(b));
-	cout << "= ";
-	print_in_hex(&c, sizeof(c));
-	cout << endl;
-
-	print_in_binary(&a, sizeof(a));
-	cout << op << " ";
-	print_in_binary(&b, sizeof(b));
-	cout << "= ";
-	print_in_binary(&c, sizeof(c));
-	cout << endl;
-
-	return 0;
-}
-

bits 4.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.8.34330.188
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bits 1-2", "bits 1-2\bits 1-2.vcxproj", "{D4B87F64-4705-41E0-A047-B63DA220B9DD}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bits 4", "bits 4\bits 4.vcxproj", "{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -13,19 +13,19 @@ Global
 		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Debug|x64.ActiveCfg = Debug|x64
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Debug|x64.Build.0 = Debug|x64
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Debug|x86.ActiveCfg = Debug|Win32
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Debug|x86.Build.0 = Debug|Win32
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Release|x64.ActiveCfg = Release|x64
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Release|x64.Build.0 = Release|x64
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Release|x86.ActiveCfg = Release|Win32
-		{D4B87F64-4705-41E0-A047-B63DA220B9DD}.Release|x86.Build.0 = Release|Win32
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Debug|x64.ActiveCfg = Debug|x64
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Debug|x64.Build.0 = Debug|x64
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Debug|x86.ActiveCfg = Debug|Win32
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Debug|x86.Build.0 = Debug|Win32
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Release|x64.ActiveCfg = Release|x64
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Release|x64.Build.0 = Release|x64
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Release|x86.ActiveCfg = Release|Win32
+		{CEDC70AD-DC0C-436A-B728-EF4CC32E0C81}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {60885E7F-23C6-456D-885B-76F61CFD9427}
+		SolutionGuid = {139BCBC1-22A6-49BB-9FA2-41ED0A385CE9}
 	EndGlobalSection
 EndGlobal

bits 4/bits 4.cpp

@@ -0,0 +1,77 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+
+using namespace std;
+
+int main() {
+	char fileName[260];
+	cin.getline(fileName, 260);
+
+	if (strchr(fileName, '*') || strchr(fileName, '"') || strchr(fileName, '<') ||
+		strchr(fileName, '>') || strchr(fileName, '?') || strchr(fileName, '|') ||
+		strchr(fileName + 2, ':') || (fileName[0] == ':')) {
+		cout << "Invalid path" << endl;
+		return 1;
+	}
+
+	if (fileName[1] == ':' && (!isalpha(fileName[0]) || fileName[2] != '\\')) {
+		cout << "Invalid path" << endl;
+		return 1;
+	}
+
+	if (strrchr(fileName, '.') && (strrchr(fileName, '.') > strrchr(fileName, '\\')) && (strrchr(fileName, '.') > strrchr(fileName, '/'))) {
+		char* ext = strrchr(fileName, '.') + 1;
+
+		if (strlen(ext) != 3) {
+			cout << "Invalid path" << endl;
+			return 1;
+		}
+
+		ext[0] = tolower(ext[0]);
+		ext[1] = tolower(ext[1]);
+		ext[2] = tolower(ext[2]);
+
+		if (strncmp(ext, "txt", 3) != 0) {
+			cout << "Invalid path" << endl;
+			return 1;
+		}
+	}
+	else {
+		strcat_s(fileName, 260, ".txt");
+	}
+
+	ifstream fin;
+	fin.open(fileName, ios_base::binary);
+
+	if (!fin.is_open()) {
+		cout << "Can't open file" << endl;
+		return 1;
+	}
+
+	fin.seekg(0, ios_base::_Seekend);
+	size_t size = fin.tellg();
+	fin.seekg(0, ios_base::_Seekbeg);
+
+	char* buf = new char[size];
+	fin.read(buf, size);
+	fin.close();
+
+	char str[64];
+	cin.getline(str, 64);
+
+	char* found = buf - 1;
+	uint16_t cnt = -1;
+
+	do {
+		++cnt;
+		++found;
+		found = strstr(found, str);
+	} while (found);
+
+	delete[] buf;
+	cout << cnt << " occurrences found" << endl;
+	cin.get();
+
+	return 0;
+}

bits 4/bits 4.vcxproj

@@ -21,8 +21,8 @@
   <PropertyGroup Label="Globals">
     <VCProjectVersion>17.0</VCProjectVersion>
     <Keyword>Win32Proj</Keyword>
-    <ProjectGuid>{d4b87f64-4705-41e0-a047-b63da220b9dd}</ProjectGuid>
-    <RootNamespace>bits12</RootNamespace>
+    <ProjectGuid>{cedc70ad-dc0c-436a-b728-ef4cc32e0c81}</ProjectGuid>
+    <RootNamespace>bits4</RootNamespace>
     <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -127,7 +127,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="bits 1-2.cpp" />
+    <ClCompile Include="bits 4.cpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

bits 4/bits 4.vcxproj.filters

@@ -15,7 +15,7 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="bits 1-2.cpp">
+    <ClCompile Include="bits 4.cpp">
       <Filter>Исходные файлы</Filter>
     </ClCompile>
   </ItemGroup>