int i=0; while(str[i++] != '\0'); 这种方法适用于计算数组中实际元素多少 利用sizeof函数计算地址 1 len = sizeof(str)/sizeof(str[0]); 这种方法适用于计算数组分配的总长度多少,包括空字符
#include <stdio.h> #include <string.h> #include <malloc.h> /** * @FileName HexStr2Integer.c * @author vfhky 2015.05.14https://typecodes.com/cseries/againchexstrtointeger.html* @param inHexStr 十六进制字符串(例如"eE2"、"Fa1"、"2011"、"-eE2"、"+eE2"等) * @return -1:字符串...
(window); } int main (int argc, char **argv) { GtkApplication *app; int status; app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE); g_signal_connect (app, "activate", G_CALLBACK (activate), NULL); status = g_application_run (G_APPLICATION (app), argc, ...
int SayHello(char* buff, int len) { char hello[] = "Hello Cgo!"; int movnum = len < sizeof(hello) ? len:sizeof(hello); memcpy(buff, hello, movnum); return movnum; } */ import "C" import ( "fmt" "unsafe" ) type MyString struct { Str *C.char Len int } func main() ...
( CArchive& ar, SIZE size); template<typename BaseType, class StringTraits> CArchive& operator>>( ATL::CStringT<BaseType, StringTraits>& str); CArchive& operator>>(BYTE& by); CArchive& operator>>(WORD& w); CArchive& operator>>(int& i); CArchive& operator>>(LONG& l); CArchive&...
[mix] ^ /home/xiaohoua/high_test/1-matmul-prelu/Matmul_PRelu/main.cpp:17:19: error: decomposition declaration cannot be declared with type 'int'; declared type must be 'auto' or reference to 'auto' /home/xiaohoua/high_test/1-matmul-prelu/Matmul_PRelu/main.cpp:7:17: note: expanded...
In Visual Studio, when I hover the mouse over size_t it tells me it is a typedef of unsigned int or unsigned long long depending on target platform. Also, of course, the explicit cast will make it go away because doing that will set it to UINT32_MAX or UINT64_MAX. That is obv...
# 大意就是从大的类型(void*)转成了小的类型(int),因为sizeof(void*)可能比sizeof(int)大#Cast to smaller integer type'int'from'void *'(aka'void *')#*为了移植代码的时候不报错,不同平台上编译的时候不报错 # 也就是说: #*需要先弄个能完美存下通用型指针的,即用intptr_t类型的存下 ...
Sending 5, 100-byte ICMP Echos to 192.168.101.1, timeout is 2 seconds: Packet sent with a source address of 192.168.101.11 !!! Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/7 ms Switch2# Switch1#sh ip int br In...
PyVarObject_HEAD_INIT(&PyType_Type,0)//ob_type == &PyType_Type"int",sizeof(PyIntObject),0, (destructor)int_dealloc,/*tp_dealloc*/(printfunc)int_print,/*tp_print*/0,/*tp_getattr*/0,/*tp_setattr*/(cmpfunc)int_compare,/*tp_compare*/(reprfunc)int_to_decimal_string,/*tp_repr...