我看了5个帖子,但仍然无法判断这是否可能......
LA
如您所见,我需要list_of_spheres全局,但在读取文件之前我不知道大小,那么如何初始化此数组呢?
typedef struct {
long double xc;
long double yc;
long double zc;
long double radio;
long double Kd;
long double Ka;
long double Ks; // specular
color fc;
} SPHERE;
// *array_of_spheres; // Original line omitted SPHERE
SPHERE *array_of_spheres;
int main(int argc, char** argv) {
int number_spheres = read_file();
//this return the number of spheres in the text file after fscanf
array_of_spheres = malloc(sizeof(SPHERE)*number_spheres);
.
.
.
.
}
我尝试了error: expected primary-expression before ‘)’ token
array_of_spheres = malloc(sizeof(SPHERE)*number_spheres);
和sizeof(SPHERE)
。
原始代码是西班牙语 在.h
sizeof(*SPHERE)
在读取文件并计算球体数量后,在.c中:
typedef struct
{
long double xc;
long double yc;
long double zc;
long double radio;
long double Kd;
long double Ka;
long double Ks; // especular
color fc;
}esfera;
esfera *lista_esferas;
RayT.c:29:40:错误:')'令牌之前的预期primary-expression lista_esferas = malloc(sizeof(* esfera)* cantidad_de_esferas);
答案 0 :(得分:2)
array_of_spheres
的全局变量声明错误,应如下所示
SPHERE *array_of_spheres;