c - 从函数初始化 C 中的全局二维数组

Question

float verticies[14][3];

init_mod(){

verticies = {{-0.5,-0.5, 0.5},
    { 0.5,-0.5, 0.5},
    {-0.5, 0.5, 0.5},
    { 0.5, 0.5, 0.5},
    {-0.5, 0.5,-0.5},
    { 0.5, 0.5,-0.5},
    {-0.5,-0.5,-0.5},
    { 0.5,-0.5,-0.5},
    { 0.5, 0.5, 0.5},
    { 0.5,-0.5, 0.5},
    {-0.5,-0.5,-0.5},
    {-0.5,-0.5, 0.5},
    {-0.5, 0.5,-0.5},
    {-0.5, 0.5, 0.5}};
}

当我编译程序时出现这个错误:

topsecret.c: In function ‘init_mod’:
topsecret.c:12:14: error: expected expression before ‘{’ token

Answer 1

您使用的语法只允许用于初始化；作业不允许这样做。

将它移动到全局数组的声明中将解决问题:

float verticies[14][3] =
    {{-0.5,-0.5, 0.5},
    { 0.5,-0.5, 0.5},
    {-0.5, 0.5, 0.5},
    { 0.5, 0.5, 0.5},
    {-0.5, 0.5,-0.5},
    { 0.5, 0.5,-0.5},
    {-0.5,-0.5,-0.5},
    { 0.5,-0.5,-0.5},
    { 0.5, 0.5, 0.5},
    { 0.5,-0.5, 0.5},
    {-0.5,-0.5,-0.5},
    {-0.5,-0.5, 0.5},
    {-0.5, 0.5,-0.5},
    {-0.5, 0.5, 0.5}};

如果以后需要重新分配数组，可以在函数内部初始化一个临时"template"数组，然后使用memcpy 将其内容放入全局数组。