------ main.c中---------段故障C和Fortran
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
#include <string.h>
int main()
{
char* lib_name = "./a.out";
int array[5] = {1,2,3,4,5};
int size_a = sizeof(array)/sizeof(int);
void* handle = dlopen(lib_name, RTLD_NOW);
if (handle) {
printf("[%s] dlopen(\"%s\", RTLD_NOW): incarcare finalizata\n",
__FILE__, lib_name);
}
else {
printf("[%s] nu poate fi deschis: %s\n", __FILE__, dlerror());
exit(EXIT_FAILURE);
}
void (*subrutine_fortran)(int*, int*) = dlsym(handle, "putere");
if (subrutine_fortran) {
printf("[%s] dlsym(handle, \"_set_name\"): simbol gasit\n", __FILE__);
}
else {
printf("[%s] simbol negasit: %s\n", __FILE__, dlerror());
exit(EXIT_FAILURE);
}
subrutine_fortran(&array,&size_a);
//dlclose(handle);
for(int i=1;i<4;i++) {
array[i]=array[i]+1;
}
}
------ -------- hello.f90
subroutine putere(a,h) bind(c)
use ISO_C_BINDING
implicit none
integer(c_int) :: h
integer(c_int), dimension(h) :: a
integer i
do concurrent (i=0:5)
a(i)=a(i)*10
end do
!write (*,*) a
end subroutine
當我做一個循環遍歷數組元素:
for(int i=1;i<4;i++) {
array[i]=array[i]+1;
}
我得到一個分段錯誤。
當我寫這不會發生:
array[3]=array[3]+1
如果你在調試器中運行你的代碼,哪一行發生seg-fault? –
Fortran數組是基於1還是0? (不是一個修辭問題。) – zwol
程序收到信號EXC_BAD_ACCESS,無法訪問內存。 原因:地址處的KERN_INVALID_ADDRESS:0x0000000a00000df3 0x0000000a00000df3 in ?? ()(gdb)其中 #0 0x0000000a00000df3在? () 無法訪問內存地址0xa00000df3 #1 0x0000000100000d0c在start() – tracius01