v0

orszem/file.txt

+1
+2
+3
+4jhjh
+12345678
+6
+7
+8

orszem/main.cpp

+#include <iostream>
+#include <fstream>
+
+
+
+/// Bugyuta kd, ami megszmolja a sorok szmt.
+/// Ha van 9 karakternl hosszabb sora, akkor hibt dob.
+int szamol(const char *f) {
+    std::ifstream inp(f); 	/// megnyits
+    int n = 0;
+    while (inp.good()) {    /// file feldolgozsa
+        char buf[9+1];
+        inp.getline(buf, 9+1);/// sorvegig, de max 9 kar.
+        if (inp.eof()) break;
+        if (inp.fail()) {
+            inp.close();     /// lezrs hiba esetn
+            throw  "baj_van";
+        }
+        n++;
+    }
+    inp.close();	         /// lezrs normal esetn
+    return (n);
+}
+
+
+struct Inputstream : std::ifstream {
+    Inputstream(const char *f) :std::ifstream(f) {}
+    ~Inputstream() { close(); }
+};
+
+
+int szamol2(const char *f) {
+    Inputstream inp(f); /// megnyits
+    int n = 0;
+    while (inp.good()) {    /// file feldolgozsa
+        char buf[9+1];
+        inp.getline(buf, 9+1);/// sorvegig, de max 9 kar.
+        if (inp.eof()) break;
+        if (inp.fail()) throw  "baj_van";
+        n++;
+    }
+    return (n);
+}
+
+
+int main() {
+    try {
+        std::cout << szamol2("file.txt") << std::endl;
+    } catch (...) {
+        std::cout << "baj van\n" << std::endl;
+    }
+}

orszem/orszem.cbp

+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="orszem" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/orszem" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Debug/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-g" />
+				</Compiler>
+			</Target>
+			<Target title="Release">
+				<Option output="bin/Release/orszem" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Release/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-O2" />
+				</Compiler>
+				<Linker>
+					<Add option="-s" />
+				</Linker>
+			</Target>
+		</Build>
+		<Compiler>
+			<Add option="-Wall" />
+			<Add option="-fexceptions" />
+		</Compiler>
+		<Unit filename="main.cpp" />
+		<Extensions>
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>