**'sizeof' on array function parameter 'arr' will return size of 'char ' [-wsizeof-array-argument]' 的翻译是:在函数参数 'arr' 上使用 'sizeof' 将返回 'char ' 的大小。 这句话是一个编译器警告信息,具体解释如下: 'sizeof':是C和C++中的一个操作符,用于获取变量或数据类型在内存中占用的...
中文含义:sizeof使用数组作为参数时会返回int*大小(指针的字节数),即使用sizeof测试数组类型的参数大小时得到的并不是整个数组的字节数,而是指针的字节数(数组被退化为指针使用sizeof) 原因是数组作为参数传给函数时,是传给数组首个元素的地址,而不是传给整个的数组空间,因此 sizeof(arr)这句话会报错...
1.c:4:25: warning: ‘sizeof’ on array function parameter ‘a’ will return size of ‘int ...
#include <iostream> #include <cstring> using namespace std; void size_of(char arr[]) { cout << sizeof(arr) << endl; // warning: 'sizeof' on array function parameter 'arr' will return size of 'char*' . cout << strlen(arr) << endl; } int main() { char arr[20] = "hello...
r += sizeof (ap) / sizeof (char); /* { dg-warning ".sizeof. on array function parameter" } */ const char arr3[] = "foo"; r += sizeof (arr3) / sizeof(char); r += sizeof (arr3) / sizeof(int); r += sizeof (arr3) / sizeof (*arr3); int arr4[5][5]; r ...
在C语言中,数组作为函数参数时将退化为指针。 #include<stdio.h>//Sizeof on array function parameter will return size of 'int *' instead of 'int []'intsizeofArray(intarray[]){returnsizeof(array);}intmain(intargc,constchar*argv[]){// insert code here...intdata1[]={1,2,3,4,5};si...
The sizeof() function returns the number of elements in an array.The sizeof() function is an alias of the count() function.Syntaxsizeof(array, mode) Parameter ValuesParameterDescription array Required. Specifies the array mode Optional. Specifies the mode. Possible values: 0 - Default. Does ...
ERROR: accepted.cpp:Infunction'int Test(int*, int, int)':accepted.cpp:6:9:error:declaration of'int length'shadows a parameterintlength=sizeof(a)/sizeof(a[0]);^accepted.cpp:6:26:warning:'sizeof'on array function parameter'a'willreturnsize of'int*'[-Wsizeof-array-argument]intlength=s...
An operand can be any of the following kinds of data items: Constant Variable Array element Function Substring Structured record field (if it evaluates to a scalar data item) An expression ok, I see the logical progression, I have never seen a elemental function in a parameter, that I ...
thesizeofoperator is applied to an array, it yields the total number of bytes in that array, not the size of the pointer represented by the array identifier. To obtain the size of the pointer represented by the array identifier, pass it as a parameter to a function that usessizeof. For...