test.c:Infunction‘main’:test.c:6:1:warning:passing argument1of‘strlen’ from incompatible pointer type[enabled bydefault]printf("%d\n",strlen(&arr));^In file included from test.c:2:0:/usr/include/string.h:395:15:note:expected ‘constchar*’ but argument isoftype‘char(*)[7]’ e...
int i; sizeof( i ); // ok sizeof i; // ok sizeof( int ); // ok sizeof int; // error 既然写法2可以用写法1代替,为求形式统一以及减少我们大脑的负担,第2种写法,忘掉它吧!
如果sizeof 计算的对象,仅仅是简单的基础类型变量,例如 int, char 等,那么他们的大小很容易计算,由于我们当前代码假设运行在32位机器上,因此如果传入sizeof的变量是int , 或是 指针类型,那么该变量的内存大小就是4字节,如果变量的类型是short, 那么它的内存大小就是2字节,如果是char, 那么内存大小就是1字节。 ...
#include<stdio.h>#include<string.h>intmain(intargc,char*argv[]){charstr1[]="Hello";str1...
sizeof运算符和strlen()函数 首先放上代码和运行结果。(在VC6.0上运行) 1#include<stdio.h>2#include<string.h>34intmain(void)5{6chars1[]="YeHuan";7char*s2="YeHuan";8chars3[]="Ye\0Huan";9char*s4="Ye\0Huan";10printf("sizeof(s1) %d\n",sizeof(s1));11printf("sizeof(s2) %d\n...
sizeof测类型(数组名除外) strlen测实际长度 strncpy返回指针类型 1#include <stdio.h>2#include <stdlib.h>3#include <string.h>4intmain()5{6char*p="wangddd";7printf("%d\n",sizeof(p));//输出4,指针类型89charx[8];10printf("%d\n",sizeof(x));//输出8,所占内存数。注意此处是8*1得出...
test.c: In function ‘main’:test.c:6:1: warning: passing argument 1 of ‘strlen’ from incompatible pointer type [enabled by default]printf("%d\n",strlen(&arr));^ In file included from test.c:2:0:/usr/include/string.h:395:15: note: expected ‘const char *’ but argument is of...
punycode_domain_to_string() radians() rand() range() rank_tdigest() regex_quote() repeat() replace_regex() replace_string() replace_strings() reverse() round() set_difference() set_has_element() set_intersect() set_union() sign() sin() split() sqrt() startofday() startofmonth(...
CHString::FormatMessageW(UINT, ) method (Windows) Win32_SoftwareFeature class (Windows) Win32_Volume class (Windows) MI_Context_PostResultWithError function (Windows) Interfaces Definitions of MMC Terms Rich Edit Controls Overviews ISharedBitmap SysLink Controls IActionProgress PROPID_MGMT_QUEUE_SUB...
object-sizeof Get the size of a JavaScript object in Bytes Node.js version uses the Buffer.from(objectToString) method to convert the object's string representation to a buffer, and then it uses the byteLength property to obtain the buffer size in bytes....