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Magcialking
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 Posted: Wed Aug 30, 2006 8:24 am Post subject: how to deal with arrays with unknown length? |
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for example,in the function "int a(int[] b)", I wanna every element of
array b to be dealt with, but b's length remains unkown, so what can I
do? |
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David Harmon
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| Posted: Wed Aug 30, 2006 9:03 am Post subject: Re: how to deal with arrays with unknown length? |
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On 29 Aug 2006 20:24:29 -0700 in comp.lang.c++, "Magcialking"
<magic_king (AT) 163 (DOT) com> wrote,
| Quote: | for example,in the function "int a(int[] b)", I wanna every element of
array b to be dealt with, but b's length remains unkown, so what can I
do?
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Write it in C++ instead of C.
Avoid bare naked arrays.
You might end up with something like:
int a(std::vector<int> & b)
Otherwise, you have to pass the number of elements as an additional
argument, or something. |
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red floyd
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| Posted: Wed Aug 30, 2006 9:11 am Post subject: Re: how to deal with arrays with unknown length? |
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David Harmon wrote:
| Quote: | On 29 Aug 2006 20:24:29 -0700 in comp.lang.c++, "Magcialking"
magic_king (AT) 163 (DOT) com> wrote,
for example,in the function "int a(int[] b)", I wanna every element of
array b to be dealt with, but b's length remains unkown, so what can I
do?
Write it in C++ instead of C.
Avoid bare naked arrays.
You might end up with something like:
int a(std::vector<int> & b)
Otherwise, you have to pass the number of elements as an additional
argument, or something.
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Not to mention writing in C++ instead of Java. |
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Gernot Frisch
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| Posted: Thu Aug 31, 2006 9:10 am Post subject: Re: how to deal with arrays with unknown length? |
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| Quote: | void Func_BehindTheCurtains(int *p,size_t len) {}
, and then invoke it using the following:
template<size_t len
void Func(int (&arr)[len])
{
return Func_BehindTheCurtains(arr,len);
}
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int* pA = new int[128];
Func(pA);
??? |
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