c - Error when creating an array with memory addresses -


i have matrix declaration implemented follows:

int var_porcencomun; int var_porceninv;  uint32_t pointers[] = {     (uint32_t)&var_porcencomun, 9999999,     (uint32_t)&var_porceninv, 999999 };

those global variables. code compiles fine.

basically, "pointers" holds address of variable , maximum value supposed hold.

my problem have add matrix new variable, defined uint64_t. although size of pointer in platform 32 bits, i'd have change "pointers" uint64_t, because of size of variable. when do:

uint64_t pointers[] = {     (uint64_t)&var_porcencomun, 9999999,     (uint64_t)&var_porceninv, 999999 };

i following error:

: error! e1054: expression must constant

why error happening when change "pointers" type?

i'm using watcom 1.3 compiler. gcc , visual studio's have compiled fine code.

globals must initialised constant values. guess watcom don't believe values constants (maybe bad compile-time calculations).

you can try hack compiler (like convert uint32_t, automatic conversion may happen; or bit tricks, none of guaranteed) or move array initialisaion out of static (e.g. moving somehwere init function call @ beginning of main).


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