xref: /petsc/src/sys/ftn-custom/zsys.c (revision 2205254efee3a00a594e5e2a3a70f74dcb40bc03)
1 
2 #include <petsc-private/fortranimpl.h>
3 
4 #if defined(PETSC_HAVE_FORTRAN_CAPS)
5 #define chkmemfortran_             CHKMEMFORTRAN
6 #define petscoffsetfortran_        PETSCOFFSETFORTRAN
7 #define petscobjectstateincrease_  PETSCOBJECTSTATEINCREASE
8 #define petscobjectstatedecrease_  PETSCOBJECTSTATEDECREASE
9 #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
10 #define petscoffsetfortran_        petscoffsetfortran
11 #define chkmemfortran_             chkmemfortran
12 #define flush__                    flush_
13 #define petscobjectstateincrease_  petscobjectstateincrease
14 #define petscobjectstatedecrease_  petscobjectstatedecrease
15 #endif
16 
17 
18 EXTERN_C_BEGIN
19 
20 void PETSC_STDCALL  petscobjectstateincrease_(PetscObject *obj, PetscErrorCode *ierr)
21 {
22   *ierr = PetscObjectStateIncrease(*obj);
23 }
24 void PETSC_STDCALL  petscobjectstatedecrease_(PetscObject *obj, PetscErrorCode *ierr)
25 {
26   *ierr = PetscObjectStateDecrease(*obj);
27 }
28 
29 
30 #if defined(PETSC_MISSING_FORTRAN_FLUSH_)
31 void flush__(int unit)
32 {
33 }
34 #endif
35 
36 
37 void PETSC_STDCALL petscoffsetfortran_(PetscScalar *x,PetscScalar *y,size_t *shift,PetscErrorCode *ierr)
38 {
39   *ierr  = 0;
40   *shift = y - x;
41 }
42 
43 /* ---------------------------------------------------------------------------------*/
44 /*
45         This version does not do a malloc
46 */
47 static char FIXCHARSTRING[1024];
48 
49 #define CHAR char*
50 #define FIXCHARNOMALLOC(a,n,b) \
51 {\
52   if (a == PETSC_NULL_CHARACTER_Fortran) { \
53     b = a = 0; \
54   } else { \
55     while ((n > 0) && (a[n-1] == ' ')) n--; \
56     if (a[n] != 0) { \
57       b = FIXCHARSTRING; \
58       *ierr = PetscStrncpy(b,a,n); \
59       if (*ierr) return; \
60       b[n] = 0; \
61     } else b = a;\
62   } \
63 }
64 
65 void PETSC_STDCALL chkmemfortran_(int *line,CHAR file PETSC_MIXED_LEN(len),PetscErrorCode *ierr PETSC_END_LEN(len))
66 {
67   char *c1;
68 
69   FIXCHARNOMALLOC(file,len,c1);
70   *ierr = PetscMallocValidate(*line,"Userfunction",c1," ");
71 }
72 
73 
74 EXTERN_C_END
75 
76 
77