Correct Fortran - C interop in wsprd code

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5571 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

lib/wsprd/nhash.c

@@ -70,13 +70,10 @@ on 1 byte), but shoehorning those bytes into integers efficiently is messy.
 
 #define SELF_TEST 1
 
+#include "nhash.h"
+
 #include <stdio.h>      /* defines printf for tests */
 #include <time.h>       /* defines time_t for timings in the test */
-#ifdef Win32
-#include "win_stdint.h"	/* defines uint32_t etc */
-#else
-#include <stdint.h>	/* defines uint32_t etc */
-#endif
 //#include <sys/param.h>  /* attempt to define endianness */
 //#ifdef linux
 //# include <endian.h>    /* attempt to define endianness */
@@ -205,7 +202,7 @@ acceptable.  Do NOT use for cryptographic purposes.
 -------------------------------------------------------------------------------
 */
 
-uint32_t nhash_( const void *key, size_t length, uint32_t initval)
+uint32_t nhash( const void *key, size_t length, uint32_t initval)
 {
   uint32_t a,b,c;                                          /* internal state */
   union { const void *ptr; size_t i; } u;     /* needed for Mac Powerbook G4 */
@@ -374,3 +371,11 @@ uint32_t nhash_( const void *key, size_t length, uint32_t initval)
 
   return c;
 }
+
+/*
+ * Fortran argument compatible wrapper
+ */
+uint32_t nhash_( const void * key, size_t const * length, uint32_t const * initval)
+{
+  return nhash (key, *length, *initval);
+}

lib/wsprd/nhash.h

@@ -0,0 +1,13 @@
+#ifndef NHASH_H_
+#define NHASH_H_
+
+#ifdef Win32
+#include "win_stdint.h"	/* defines uint32_t etc */
+#else
+#include <stdint.h>	/* defines uint32_t etc */
+#endif
+
+uint32_t nhash( const void * key, size_t length, uint32_t initval);
+uint32_t nhash_( void const * key, size_t const * length, uint32_t const * initval);
+
+#endif

lib/wsprd/unpk.c

@@ -6,10 +6,9 @@
 #include <stdint.h>
 #include <time.h>
 
+#include "nhash.h"
 #include "wsprd_utils.h"
 
-unsigned int nhash_( const void *key, size_t length, uint32_t initval);
-
 void unpk_(signed char message[], int *nhashtab, char call_loc_pow[])
 {
   int i,n1,n2,n3,ndbm,ihash,nadd,noprint,nh;
@@ -74,7 +73,7 @@ void unpk_(signed char message[], int *nhashtab, char call_loc_pow[])
       strncat(call_loc_pow," ",1);
       strncat(call_loc_pow,cdbm,2);
       strncat(call_loc_pow,"\0",1);
-      ihash=nhash_(callsign,strlen(callsign),(uint32_t)146);
+      ihash=nhash(callsign,strlen(callsign),(uint32_t)146);
       strcpy(*hashtab+ihash*13,callsign);
     } else {
       nadd=nu;
@@ -89,7 +88,7 @@ void unpk_(signed char message[], int *nhashtab, char call_loc_pow[])
       strncat(call_loc_pow," ",1);
       strncat(call_loc_pow,cdbm,2);
       strncat(call_loc_pow,"\0",1);
-      ihash=nhash_(callsign,strlen(callsign),(uint32_t)146);
+      ihash=nhash(callsign,strlen(callsign),(uint32_t)146);
       strcpy(*hashtab+ihash*13,callsign);
       noprint=0;
     }

lib/wsprd/wsprd.c

@@ -723,7 +723,6 @@ int main(int argc, char *argv[])
     memset(cdbm,0,sizeof(char)*3);
     char hashtab[32768][13];
     memset(hashtab,0,sizeof(char)*32768*13);
-    uint32_t nhash_( const void *, size_t, uint32_t);
     int nh;
     
     if( usehashtable ) {

lib/wsprd/wsprd_utils.c

@@ -27,6 +27,7 @@
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include "wsprd_utils.h"
+#include "nhash.h"
 
 #ifndef int32_t
 #define int32_t int
@@ -261,7 +262,7 @@ int unpk_(signed char *message, char hashtab[32768][13], char *call_loc_pow, cha
             strncat(call_loc_pow," ",1);
             strncat(call_loc_pow,cdbm,2);
             strncat(call_loc_pow,"\0",1);
-            ihash=nhash_(callsign,strlen(callsign),(uint32_t)146);
+            ihash=nhash(callsign,strlen(callsign),(uint32_t)146);
             strcpy(*hashtab+ihash*13,callsign);
         } else {
             nadd=nu;
@@ -278,7 +279,7 @@ int unpk_(signed char *message, char hashtab[32768][13], char *call_loc_pow, cha
             strncat(call_loc_pow,"\0",1);
             int nu=ndbm%10;
             if( nu == 0 || nu == 3 || nu == 7 || nu == 10 ) { //make sure power is OK
-                ihash=nhash_(callsign,strlen(callsign),(uint32_t)146);
+                ihash=nhash(callsign,strlen(callsign),(uint32_t)146);
                 strcpy(*hashtab+ihash*13,callsign);
             } else noprint=1;
         }
@@ -294,7 +295,7 @@ int unpk_(signed char *message, char hashtab[32768][13], char *call_loc_pow, cha
                // not testing 4'th and 5'th chars because of this case: <PA0SKT/2> JO33 40
                // grid is only 4 chars even though this is a hashed callsign...
                //         isalpha(grid6[4]) && isalpha(grid6[5]) ) ) {
-               ihash=nhash_(callsign,strlen(callsign),(uint32_t)146);
+               ihash=nhash(callsign,strlen(callsign),(uint32_t)146);
                strcpy(*hashtab+ihash*13,callsign);
            } else noprint=1;
         

lib/wsprd/wsprd_utils.h

@@ -19,6 +19,4 @@ void deinterleave(unsigned char *sym);
 // used by qsort
 int floatcomp(const void* elem1, const void* elem2);
 
-unsigned int nhash_( const void *key, size_t length, uint32_t initval);
-
 int unpk_( signed char *message, char hashtab[32768][13], char *call_loc_pow, char *callsign);