代码语言:javascript voidf(int n,int*restrict p,int*restrict q){while(n-->0)*p++=*q++;// none of the objects modified through *p is the same// as any of the objects read through *q// compiler free to optimize, vectorize, page map, etc.}voidg(void){extern int d[100];f(50,...
前面说过restrict是一种类型修饰符,但不同于其他两种修饰符const和volatile,restrict仅用于修饰指针类型与不完整类型(incomplete types),C99规范中对restrict的诠释是这样的:"Types other than pointer types derived from object or incomplete types shall not be restrict-qualified"。用restrict修饰指针是最常见的情况,...
Use of the restrict type qualifier with pointers voidfunc1(int* restrict a,int*restrict b) {/*func1's code here*/} In the example that follows, the restrict keyword is used to tell the compiler that the function func1 is never called with the pointers a and b pointing to objects that...
4）restrict-qualified指针P1可以被一个指针P2的指针表达式E赋值只存在两种情况——i）将指向外部块的指针...
Use of the restrict type qualifier with arrays void func2(int c[restrict], int d[restrict]) { int i; for(i = 0; i < 64; i++) { c[i] += d[i]; d[i] += 1; } } This example illustrates using the restrict keyword when passing arrays to a function. ...
如果您蔑视它也就是在让⾃⼰冒险。To help the compiler determine memory dependencies,you can qualify a pointer, reference, or array with the restrict keyword.The restrict keyword is a type qualifier that may be applied to pointers, references, and arrays.
restrict的定义是 (restrict type qualifier)：During each execution of a block in which a restricted...
restrict 也是是一个qualifier to a pointer type It tells the compiler that this pointer is not an alias of anything else; the memory it points at is only referenced through the pointer itself. Writing to other pointers will not change the value it points at, and writing through the pointer ...
restrict的定义是 (restrict type qualifier)：During each execution of a block in which a restricted...
--define '__typeof\(c\)=int' \ --symbol __inline:=inline\ --symbol __inline__:=inline\ --symbol __const__:=const\ --symbol __const:=const\ --symbol __restrict:=restrict\ --symbol __extension__:qualifier\ --symbol __asm__:wrapper\ ...