Read void* as meaning a pointer that points to something "without meaning". The pointer is "without meaning", which means it doesn't make sense to dereference such a pointer. Trying to do so is in fact illegal. Code that dereferences a void pointer won't compile. So if you can't de...
c语言中void的含义 (目录) 1.void*是什么 我们之前学过许多类型的指针变量,如整形指针,字符指针,甚至数组指针,函数指针等。 int a = 10; int *pa = &a;//整形指针pa接受一个整形变量a的地址 但是一个指针只能接受一个同类型变量的地址,如pa只能接受a的地址 如果用一个整形指针变量接受一个float类型的地址...
fol. by of): a life void of meaning. 4. without contents; empty. 5. without an incumbent, as an office; vacant. 6. (in cards) having no cards in a suit. n. 7. an empty space; emptiness: He disappeared into the void. 8. a state or feeling of loss or privation: His ...
fol. by of): a life void of meaning. 4. without contents; empty. 5. without an incumbent, as an office; vacant. 6. (in cards) having no cards in a suit. n. 7. an empty space; emptiness: He disappeared into the void. 8. a state or feeling of loss or privation: His ...
JavaScript - void Keyword - The void keyword in JavaScript is used as an operator that evaluates a given expression and returns undefined. The void is an important keyword in JavaScript. The meaning of the void is null or empty.
, he/she is trying to draw students' attention to the ___ in grammar teaching. A. meaning B. function C. form D. sound 查看完整题目与答案 在《华为的红旗到底能打多久》一文中,任正非首次明确提出“狼文化”的主张,即狼有三大特性,一是敏锐的嗅觉;二是不屈不挠、奋不顾身的进攻精神;三...
Again, because void is not a true type, sizeof(void) has no meaning so pointer arithmetic is not valid on void *. (Some implementations allow it, using the equivalent pointer arithmetic for char *.) Share Improve this answer Follow answered Mar 28, 2009 at 10:42 CB Bailey 782k10...
. Meaning "absolute empty space, vacuum" is from 1727. also from 1610s void (v.) "to clear" (some place, of something), c. 1300, from Anglo-French voider, Old French vuider "to empty, drain; to abandon, evacuate," from voide (see void (adj.)); meaning "to deprive (something...
So this means that printf("%s", x) has the same meaning whether x has type char* or void*, but it does not mean that you can do arithmetic on a void*. Editor's note: This answer has been edited to reflect the final conclusion. ...
Furthermore, if a function declaration does not include arguments, as in doubleatof(); that too is taken to mean that nothing is to be assumed about the arguments of atof; all parameter checking is turned off. This special meaning of the empty argument list is intended to permit older C ...