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memcpy function usage

The memcpy function is a very useful function in the C language, which can easily implement memory copy operations. When using, you need to pay attention to the size and data type of the target memory, and be extra careful when copying complex types.

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time：2023-09-15 13:19:05

memcpy function usage memcpy refers to the memory copy function used by C and C++. The function syntax is void *memcpy(void *destin, void *source, unsigned n), which means copying n bytes from the source to the target destination.
Write your own memcpy() function in C language Here we will see how to implement memcpy() function in C language. The memcpy() function is used to copy a block of data from one location to another. The syntax of memcpy() is as follows -void*memcpy(void*dest,constvoid*srd,size_tnum); In order to make our own memcpy, we have to typecast the given address to char* and then copy the data byte by byte from the source to the target. Just read the following code to get a better idea. Example#include #include voidcustom_mem
How to use the memcpy function The memcpy function can copy the contents of one memory block to another memory block. When using the memcpy function, you need to note that the target memory block and the source memory block cannot overlap. The target memory block must have enough space to store the contents of the source memory block. , and ensure that the source memory block is of sufficient length.

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