aligned_alloc()

void * fl::aligned_alloc	(	fl::size_t	alignment,
		fl::size_t	size )

Definition at line 21 of file cstdlib.cpp.hpp.

                                                       {
#if defined(FL_IS_AVR) || defined(FL_IS_ESP8266) || defined(FL_IS_ARM) || defined(FL_IS_APOLLO3)
    // Many bare-metal toolchains (newlib-nano on STM32, nRF52, SAMD, RP2040,
    // Teensy, etc.) ship an aligned_alloc that internally calls
    // posix_memalign, which doesn't exist on bare-metal and causes an
    // "undefined reference to `posix_memalign'" link error.
    // Fall back to plain malloc — sufficient for the alignments FastLED
    // actually requests on these constrained targets.
    (void)alignment;
    return ::malloc(size);
#elif defined(FL_IS_WIN)
    return ::_aligned_malloc(size, alignment);
#elif defined(FL_IS_ESP32) && !ESP_IDF_VERSION_4_OR_HIGHER
    // ESP-IDF 3.x toolchain (GCC 5.2 / newlib) does not provide
    // ::aligned_alloc. Fall back to plain malloc.
    (void)alignment;
    return ::malloc(size);
#else
    fl::size_t aligned_size = (size + alignment - 1) & ~(alignment - 1);
    return ::aligned_alloc(alignment, aligned_size);
#endif
}