C/C++ Kernel - 2021.2 English

For C/C++ kernel models, printf() is only supported during software emulation and should be excluded from the Vitis HLS synthesis step. In this case, any printf() statement should be surrounded by the following compiler macros:

#ifndef __SYNTHESIS__
    printf("Checkpoint 1 reached");
#endif

For C++ kernels, you can also use cout in your code to add checkpoints or messages used for debugging the code. For example, you might add the following:

std::cout << "TEST " << (match ? "PASSED" : "FAILED") << std::endl;