28 lines
377 B
C
28 lines
377 B
C
// define the "before main" function
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int x = 0;
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__attribute__((constructor))
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static void run_before_main_func(void){
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x = 100;
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}
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// main
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#include <stdio.h>
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int main(){
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printf("x = %d\n", x);
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return(0);
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}
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#if 0
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// wrapped in a macro:
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#define BEFORE_MAIN(n) \
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__attribute__((constructor)) static void n(void)
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BEFORE_MAIN(before_main_rule){
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// do work here
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}
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#endif
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