Iff cpp - A powerful C++ preprocessor

Iff cpp is a preprocessor for the C++ programming language. It is used to generate code at compile-time, automate repetitive tasks, and create reusable abstractions. Iff cpp is an essential tool for any serious C++ programmer.

Features

Iff cpp comes with a wide range of features, including:

• Macro expansion: Define macros that can be expanded into complex expressions or statements.

#define ASSERT(x) if(!(x)) { printf("Assertion failed: %s\n", #x); abort(); }
ASSERT(foo > 0);

• Conditional compilation: Control which portions of your code are compiled based on configuration options.

#if !defined(NDEBUG)
    #define DEBUG
#endif

• Include files: Extract common code into separate header files, which can be included in multiple source files.

#include <stdio.h>

• Stringification: Convert tokens into strings.

#define STR(x) #x
printf("The answer is %s\n", STR(42));

• Token pasting: Combine tokens into new identifiers.

#define CONCAT(x, y) x##y
int CONCAT(foo, 42) = 10;

• Variadic macros: Define macros that take a variable number of arguments.

#define LOG(fmt, ...) \
    printf("[%s:%d] " fmt "\n", __FILE__, __LINE__, ##__VA_ARGS__)
LOG("Hello, world!");

Installation

Iff cpp is included in most C++ compilers, including GCC and Clang. To use it, just pass the -E flag to your compiler to run the preprocessor:

$ g++ -E main.cpp

Conclusion

Iff cpp is a highly versatile tool that enables you to write complex C++ code quickly and efficiently. Whether you're building large-scale applications or small utility programs, Iff cpp is an essential tool to have in your arsenal.