How to initialize array that declared inside struct?

Question

I was developing C program to read status of door access. I created a struct in which two arrays were declared. I wanted to initialize the array at the time of definition of that structure. For example,

Struct declaration in .h file:

typedef volatile struct
{

    uint8_t __near const * const people_in_input_ports[8];

    uint8_t __near const * const people_out_input_ports[8];

}GATE_ACCESS_CTRL_BLOCK;

Struct definition in .c file:

GATE_ACCESS_CTRL_BLOCK g_gate_acc_parameters    = { 
    .people_in_input_ports  = {&P12, &P4, &P4, &P4, &P6, &P6, &P6, &P6},                                                
    .people_out_input_ports = {&P14, &P14, &P2, &P14, &P14, &P5, &P5, &P1}
};

Here, P12, P4, P6, P5, P2 and P14 are sfr addresses of corresponding port.

I got the following error.

E0520029:Expected an expression
E0520029:Expected an expression

How to initialize arrays that are declared inside of a structure by using arrays' name?

Please provide a minimal reproducible example.

kiner_shah
– kiner_shah

2021-11-22 07:05:57 +00:00
Commented Nov 22, 2021 at 7:05 — kiner_shah
– kiner_shah, Commented Nov 22, 2021 at 7:05

Tarick Welling · Accepted Answer · 2021-11-22 09:45:18Z

1

In my project the C90 standard was selected which doesn't support that kind of initialization in the compiler settings. Changing it to the C99 standard makes it work.

edited Nov 22, 2021 at 9:45

Tarick Welling

3,2664 gold badges21 silver badges47 bronze badges

answered Nov 22, 2021 at 7:13

Sekar N

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1 Comment

Lundin Over a year ago

Or just drop the designated initializers.

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