mccu/include/mcutil/lambda.h

#ifndef _H_MCUTIL_LAMBDA
#define _H_MCUTIL_LAMBDA

#if defined(_MSC_VER) && !defined(__MC_LMBD_DEF)
    #define __MCU_LMBD_DEF
    #error "msc TODO"
#endif

#if defined(__clang__) && !defined(__MCU_LMBD_DEF)
    #if !__has_extension(blocks)
        #error "Clang blocks feature is required, compile with '-fblocks -lBlocksRuntime' \
and make sure you have libblocksruntime(-dev) installed"
    #endif

    #define __MCU_LMBD_DEF
    #define lambda(ret_t, args_t, body) ( ^ ret_t args_t body )
#endif

#if defined(__GNUC__) && !defined(__MCU_LMBD_DEF)
    #define __MCU_LMBD_DEF
    #define lambda(ret_t, args_t, body) ({ ret_t lambda##__LINE__ args_t body &lambda##__LINE__; })
#endif

#if !defined(__MCU_LMBD_DEF)
    #error "Unsupported compiler"
#endif

#endif