在运行程序的时候报错:error: subscripted value is neither array nor pointer 原因分析:下标值不符合数组或指针要求,即操作的对象不允许有下标值。 出错行:prims[index++]=g.vexnum[start] 在声明结构体的时候定义的vexs为数组形式,此处将g.vexnum[start]改为g.vexs[start]问题解决。
意思就是：想对一个变量名使用下标，它必须要是数组名或指针名
intconst*array=newint[3]; And the subscript operator ([]) is really a dereference operator with a shift, so array[2]; is really *(array+2); Because of pointer arithmetic, adding X to an address of type T is the same as shifting that address by X*sizeof(T). ...
int array[3]; array[2]=666; C/C++ compiler doesn't see array[0] as an address to an integer value, it takes it directly as a value, exactly as same as writing int var; var=66; That's obvious that "var" is not a pointer exactly as array[2] is not. But if we use a point...
set a pointer to point to a corresponding integer: */ array_of_pointers[i] = &array_of_integers[i]; } for ( i = 0; i < ARRAY_SIZE; i++) { /* print the values of the integers pointed to by the pointers: */ printf("array_of_integers[%d] = %d\n", i, *array_of_pointers...
解决办法是：把crosstool-ng-1.18.0_build/.build/src gcc-4.6.0/gcc/gengtype.c 中的函数write_field_root中的 struct pair newv;移到最开始声明处，即改为这样：static void write_field_root (outf_p f, pair_pv, type_p type, const char *name,int has_length, struct fileloc *...
Tanakai can process web pages concurrently in one single line: in_parallel(:parse_product, urls, threads: 3), where :parse_product is a method to process, urls is array of urls to crawl and threads: is a number of threads: # amazon_spider.rb require 'tanakai' class AmazonSpider < Ta...
array, or pointer type.returnfalse; } }publicclassType_HasElementTypeImpl{publicstaticvoidMain(){try{intmyInt =0;int[] myArray =newint[5]; MyTypeDelegator myType =newMyTypeDelegator(myArray.GetType());// Determine whether myType is an array, pointer, reference type.Console.WriteLine("\nDe...
package mainimport ( "fmt" "reflect")func main() { // 创建一个空指针 var ptr *int // 使用IsNil()判断指针是否为nil isNil := reflect.ValueOf(ptr).IsNil() fmt.Println("Is Pointer Nil:", isNil) // 输出: true// 创建一个无效的反射值 var invalidValue reflect.Value // 使用IsValid()...
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