Table of Contents The difference between sizeof and strlen static extern “C” typedef const #defineMacro definition Comparison of constants defined by const and #define inline function The difference between inline functions and #define The difference between sizeof and strlen sizeof is an operator and strlen is a library function. The parameters of sizeof can be […]
Tag: eof
Offline compilation of libreoffice-7.1.8.1 and kkfileview deployment on Galaxy Kirin V10SP1 for ARM version to achieve online viewing function
Compile libreoffice-7.1.8.1 and configure kkfileview The following documents are required, kkFileView-4.0.0-You can use the .tar.gz file to add the configuration file libreoffice-7.1.8.1.tar.xz is the libreoffice source file and needs to be compiled libreoffice-external-tar.tar.gz is a related component required by the libreoffice program libreoffice-yum-new.tar.gz Components for compiler environment autogen .input decompresses the libreoffice source file and […]
Byte alignment, sizeof, strlen, _countof, offsetof, _msize
一、sizeof The return value of sizeof() is best saved with size_t. Under x86 and x64, this type has different representations, unsigned int (32 bits), unsigned __int64 (64-bit) #include <iostream> #include <string> #include <vector> int main() { int arrx[20]; auto n = _countof(arrx); //n = 20, the return value type is unsigned int. The macro _countf […]
[Table] P1217 [USACO1.5] Palindromes Prime Palindromes (stringstream, sizeof(num)/sizeof(num[0]))…
Question description Because 151 is both a prime number and a palindrome (looking the same from left to right and right to left), 151 is a palindrome prime number. Write a program to find all palindromic prime numbers in the range [a,b](5≤a
Different array parameters have different meanings in sizeof and strlen
Table of Contents Basic understanding of array parameter passing Basic understanding of sizeof and strlen sizeof operator: strlen function: Notice: sizeof and int type array Code: Code analysis: sizeof and character array Code 1, char arr[]={0}: Code analysis: Code 2, char arr[] = ” “: Code analysis: strlen and character array Code 1, char arr[]={0}: […]
Analysis of sizeof and strlen to obtain arrays and pointers
Table of Contents sizeof Vs strlen in one-dimensional array integer array sizeof character array sizeof strlen string array sizeof strlen String pointer char *p sizeof strlen sizeof in two-dimensional array Summarize The main questions today are mainly array & pointer analysis questions and written test questions. I feel a little anxious recently. Everyone must focus […]
Summary of C++ ostream flow functions good, eof, fail, bad, operator!, operator bool, rdstate, setstate, clear, copyfmt (209)
Introduction: CSDN blog expert, focusing on Android/Linux System, share multi-mic voice solutions, audio and video, codec and other technologies, and grow with everyone! Quality Column:Audio Engineer Advanced Series[Original information is being updated continuously… ] Life motto: There are never shortcuts in life, only actions It is the only cure for fear and laziness. For more […]
What is the difference between sizeof and strlen, and what is the difference between sizeof(a) and sizeof(a+0)? sizeof(*a), sizeof(a+1), sizeof(a[1])… | Written test question analysis | Super complete
After experiencing array, pointer, pointer array, array pointer…, we really It is difficult to clearly understand what the relationship between them is. Below, the editor will use a written test question to clearly explain sizeof and Different types of calculation scenarios in >strlenand how to use them. 1. Essential knowledge points We first need to […]
Troubleshooting Premature EOF in spark: no length prefix available
Error message /07/22 10:20:28 WARN DFSClient: Error Recovery for block BP-888461729-172.16.34.148-1397820377004:blk_15089246483_16183344527 in pipeline 172.16.34.64:50010, 17 2.16.34.223:50010: bad datanode 172.16.34.64: 50010 [DataStreamer for file /bdp/data/u9083189ae0349dbaf8f2f2ee3351579_temp/.hive-staging_hive_2022-07-22_10-16-47_909_6320972307505128897-167/-ext-10000/_temporary /0/_temporary/attempt_20220722101347_2794_m_000034_0/part-00034-c0b2f98a-7049-4a5d- bcf3-b3042cd16645-c000 block BP-888461729-172.16.34.148-1397820377004:blk_15089246483_16183344527] 22/07/22 10:21:07 WARN DFSClient: Slow ReadProcessor read fields took 51412ms (threshold=30000ms); ack: seqno: 10 status: SUCCESS status: SUCCESS downstreamAckTimeNanos: 1027966, targets: [172.16.34.64:50010, 172.16 .34.95:50010] [ResponseProcessor for block […]
Sizeof and strlen explained
Article directory sizeof operator Example 2 Example 3 strlen library function sizeof operator 1.sizeof operator is used to calculate the memory size of variables, the unit is bytes 2. You can also directly calculate the data type to find the number of bytes. We use examples to learn sizeof First we need to understand two […]