use of stdlib.h in main

[wmjenkinson]

Guys, I want to use some stdlib functions inside kernel.cpp, in this example it is:

int arr[] = {42, 17, 8, 99, 23};
size_t n = sizeof(arr) / sizeof(arr[0]);

// Sorting the array
qsort(arr, n, sizeof(int), compare);

But I get the following error:

C:\Program Files (x86)\Arm GNU Toolchain aarch64-none-elf\14.2 rel1\bin\aarch64-none-elf-ld.exe: kernel.o: in function CKernel::Run()': D:\circle-master\sample\19-tasks/kernel.cpp:123:(.text+0x338): undefined reference to qsort'

Do you know of a way to successfully compile it?

[rsta2]

This is not possible with Circle itself. You have to use the circle-stdlib project to use C or C++ standard lib functions / classes with Circle. Only math functions from libm.a are supported by Circle itself.