Function validate_newQuregAllocs

quest/src/core/validation.cpp:1718–1738

}

void validate_newQuregAllocs(Qureg qureg, const char* caller) {

    // this validation is called AFTER the caller has checked for failed
    // allocs and (in that scenario) freed every pointer, but does not 
    // overwrite any pointers to nullptr, so the failed alloc is known.
    // This is only safe to do so (rather than making the caller set ptrs
    // to nullptr) because the struct contains only 1D pointers (no nesting)

    // we get node consensus in case mallocs fail on some nodes but not others, as may occur
    // in heterogeneous settings, or where nodes may have other processes and loads hogging RAM. 
    assertAllNodesAgreeThat(mem_isAllocated(qureg.cpuAmps), report::NEW_QUREG_CPU_AMPS_ALLOC_FAILED, caller);

    if (qureg.isGpuAccelerated)
        assertAllNodesAgreeThat(mem_isAllocated(qureg.gpuAmps), report::NEW_QUREG_GPU_AMPS_ALLOC_FAILED, caller);

    if (qureg.isDistributed)
        assertAllNodesAgreeThat(mem_isAllocated(qureg.cpuCommBuffer), report::NEW_QUREG_CPU_COMM_BUFFER_ALLOC_FAILED, caller);

    if (qureg.isDistributed && qureg.isGpuAccelerated)
        assertAllNodesAgreeThat(mem_isAllocated(qureg.gpuCommBuffer), report::NEW_QUREG_GPU_COMM_BUFFER_ALLOC_FAILED, caller);
}