search:pointer array size相關網頁資料

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  'sizeof'(a pointer pointing to an array)? - Stack Overflow
  
  Is there a way to find out the size of the array that ptr is pointing to (instead ... the size in the first int, and return ptr+1 as the pointer to the array.
  
  2025-04-29
  
  瀏覽：734
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  c++ how to get the length of a pointer array? - Stack Overflow
  
  You can't, I'm afraid. You need to pass the length of the array to anyone who needs it. Or you can use a std::array or std::vector or similar, which keep ...
  
  2025-04-27
  
  瀏覽：302

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getting size of array from pointer c++ - Stack Overflow

日期：2025-04-27

I am writing a simple function that returns the largest integer in an ... There's no way to do that. This is one good reason (among many) to use ......

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c - Size of char pointer array from function - Stack Overflow

日期：2025-04-30

When you use an array as a parameter to a function, it "decays" to a pointer to the first element of the array. Since messages is an array of pointers to ......

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How can I get the size of an array from a pointer in C? - Stack Overflow

日期：2025-04-26

I've allocated an "array" of mystruct of size n like this: if (NULL == (p ... No, there is no way to get this information without depending strongly on ......

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Pointer to an array get size C++ - Stack Overflow

日期：2025-04-24

Simple. Use std::vector Or std::array (where N is a compile-time constant). If you know the size of your array at compile time, and it doens't ......

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c++ - Array length with pointers - Stack Overflow

日期：2025-04-26

You cannot do it. You need to pass the array length along with the array pointer, or you need to use a container object such as std::vector ....

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c++ - Find size of array pointed to by pointer - Stack Overflow

日期：2025-04-25

This question already has an answer here: How to find the 'sizeof'(a ... You cannot - sizeof is a compile time operation and hence not dynamic....

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size of character array and size of character pointer - Stack Overflow

日期：2025-04-27

I have a piece of C code and I don't understand how the sizeof(. ... firstname is a char array carrying a trailing 0 -terminator. lastname is a pointer....

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How to calculate size of array from pointer variable? - CodeProject

日期：2025-04-25

21 Feb 2012 ... i dont know actually where is the array in memory..i m only getting pointer adress( suppose 9001) using that adress i have to calculate array size ......

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