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Asked: 2026-05-11T00:07:03+00:00

I want to initialize a struct element, split in declaration and initialization. This is

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I want to initialize a struct element, split in declaration and initialization. This is what I have:

typedef struct MY_TYPE {   bool flag;   short int value;   double stuff; } MY_TYPE;  void function(void) {   MY_TYPE a;   ...   a = { true, 15, 0.123 } }

Is this the way to declare and initialize a local variable of MY_TYPE in accordance with C programming language standards (C89, C90, C99, C11, etc.)? Or is there anything better or at least working?

Update I ended up having a static initialization element where I set every subelement according to my needs.

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  1. In C99, you can use a designated initializer to initialize a structure:

    MY_TYPE a = { .flag = true, .value = 123, .stuff = 0.456 };

    Other members are initialized as zero: "Omitted field members are implicitly initialized the same as objects that have static storage duration." (https://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html)

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