constexpr int size = 10; int arr[size]; // 正确,因为size是constexpr 通过这些步骤,你应该能够识别和解决#28: expression must have a constant value这一错误。
aHigh Attenuation pattern 高衰减样式[translate] aplease help to fllow up released drawing 请帮助对fllow被发布的图画[translate] aThe debenture holder must be paid interest on the the loan, and this is payable out of capital. 借款股份持有者在贷款必须是有偿的兴趣,并且这是付得起的出于资本。[tr...
变量的初始化必须为常量，不能用一个变量初始化另一个变量。你把定义数组时候的i去掉就行了。
..\ST7735S\st7735.c(283): error: #28: expression must have a constant value uint8_t data...
Eigen::Matrix<double, 1, 1> A 此时如果将两个1改成变量 即运行期间才会知道是什么值 Eigen::Matrix<double, a, b> A 此时报错expression must have a constant value 改成: Eigen::MatrixXd A(a, b) 上面是double类型的 如果用float类型:
下面的语句（第4行）有错：u16 rr=uy;错误的原因是定义变量的初始化值必须是常数，不能是变量，你可以修改为：u16 rr=9;
在IAR环境中有下面的代码,会出现Error: expression must have a constant value 错误,但是MDK的环境就不会出现,,能有大神帮忙看一下.static const int buff[] ={1,2,3 ...
After compiling I have an error: #28 expression must have a constant value. I do not know how to solve it. Can anyone help me ? STATUSswitch_stats_example( api_device_t *only_device ) { UINT8port1 = 1; sc_read_ctrs_in_tread_in = {RIO_A...
求助:错误#28 expression must have a constant value 我在main.c中定义了 float LaserTemperature=BaseTemp; BaseTemp是在sys.h中声明的常量。 然后我在key.c中成功调用LaserTemperature 调用程序: extern float LaserTemperature; 但是在LCD.c中却提示#28 expression must have a constan...
I have used the trail and full Uvision3 ARM compiler. The following code produces the error 'expression must have a constant value' at the indicated position below