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  1. Qt
  2. QTBUG-61968

qrandom.cpp: error: ignoring return value of ‘int getentropy(void*, size_t)’, declared with attribute warn_unused_result

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Details

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 5.9.2
    • 5.10.0 Alpha
    • Core: Other
    • None
    • Archlinux, GCC 7.1.1, glibc 2.25

    Description

      When trying to compile the current dev branch, I get:

      global/qrandom.cpp: In static member function ‘static qssize_t {anonymous}::SystemRandom::fillBuffer(void*, qssize_t)’:
global/qrandom.cpp:132:19: error: ignoring return value of ‘int getentropy(void*, size_t)’, declared with attribute warn_unused_result [-Werror=unused-result]
         getentropy(reinterpret_cast<uchar *>(buffer) + read, count - read);
         ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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            thiago Thiago Macieira
            the compiler Florian Bruhin
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            Dates

              Created:
              Updated:
              Resolved:

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