online compiler and debugger for c/c++

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/****************************************************************************** Welcome to GDB Online. GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl, C#, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog. Code, Compile, Run and Debug online from anywhere in world. *******************************************************************************/ #define MODUL 2 #include <stdio.h> int main() { #if 1 == MODUL #pragma message ( "Selected modul 1!" ) printf("Selected modul 1!"); #elif 2 == MODUL #pragma message ( "Selected modul 2!" ) printf("Selected modul 2!"); #else #pragma message ( "No modul selected!!!!" ) printf("No modul selected!!!!"); #endif return 0; }

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