[Backport 6.1] Failed to requiest more memory in stair-step function #3710
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The function gmtvector_fix_up_path_cartonly builds a stair-step curve from an array by adding the extra horizontal or vertical steps, thus lengthening the array. Yet, there was no check to allocate more memory once we passed the initial GMT_INITIAL_MEM_ROW_ALLOC points. So it took a large file to exceed that and then crash, reveling the bug.
seisman
approved these changes
Jul 23, 2020
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Backport e9b0b35 from #3709