Tutorial by Topics: add



Sed commands can be specified to act only on certain lines by using addresses or address ranges.

By default, C compilers lay out structures so that each member can be accessed fast, without incurring penalties for 'unaligned access, a problem with RISC machines such as the DEC Alpha, and some ARM CPUs.

Depending on the CPU architecture and the compiler, a structure may occupy more space in memory than the sum of the sizes of its component members. The compiler can add padding between members or at the end of the structure, but not at the beginning.

Packing overrides the default padding.


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