81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
/* -*-c-*- */
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#include "ffitest.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <complex.h>
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static _Complex T_C_TYPE gComplexValue1 = 1 + 2 * I;
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static _Complex T_C_TYPE gComplexValue2 = 3 + 4 * I;
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static int cls_variadic(const char *format, ...)
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{
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va_list ap;
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_Complex T_C_TYPE p1, p2;
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va_start (ap, format);
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p1 = va_arg (ap, _Complex T_C_TYPE);
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p2 = va_arg (ap, _Complex T_C_TYPE);
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va_end (ap);
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return printf(format, T_CONV creal (p1), T_CONV cimag (p1),
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T_CONV creal (p2), T_CONV cimag (p2));
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}
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static void
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cls_complex_va_fn(ffi_cif* cif __UNUSED__, void* resp,
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void** args, void* userdata __UNUSED__)
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{
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char* format = *(char**)args[0];
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gComplexValue1 = *(_Complex T_C_TYPE*)args[1];
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gComplexValue2 = *(_Complex T_C_TYPE*)args[2];
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*(ffi_arg*)resp =
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printf(format,
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T_CONV creal (gComplexValue1), T_CONV cimag (gComplexValue1),
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T_CONV creal (gComplexValue2), T_CONV cimag (gComplexValue2));
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}
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int main (void)
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{
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ffi_cif cif;
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void *code;
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ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
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void* args[4];
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ffi_type* arg_types[4];
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char *format = "%.1f,%.1fi %.1f,%.1fi\n";
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_Complex T_C_TYPE complexArg1 = 1.0 + 22.0 *I;
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_Complex T_C_TYPE complexArg2 = 333.0 + 4444.0 *I;
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ffi_arg res = 0;
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arg_types[0] = &ffi_type_pointer;
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arg_types[1] = &T_FFI_TYPE;
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arg_types[2] = &T_FFI_TYPE;
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arg_types[3] = NULL;
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/* This printf call is variadic */
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CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 3, &ffi_type_sint,
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arg_types) == FFI_OK);
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args[0] = &format;
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args[1] = &complexArg1;
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args[2] = &complexArg2;
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args[3] = NULL;
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ffi_call(&cif, FFI_FN(cls_variadic), &res, args);
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printf("res: %d\n", (int) res);
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CHECK (res == 24);
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CHECK(ffi_prep_closure_loc(pcl, &cif, cls_complex_va_fn, NULL, code)
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== FFI_OK);
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res = ((int(*)(char *, ...))(code))(format, complexArg1, complexArg2);
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CHECK (gComplexValue1 == complexArg1);
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CHECK (gComplexValue2 == complexArg2);
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printf("res: %d\n", (int) res);
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CHECK (res == 24);
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exit(0);
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}
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