Committed Informix compat bug fix to 7.4 as well.

diff --git a/src/interfaces/ecpg/compatlib/Makefile b/src/interfaces/ecpg/compatlib/Makefile
index 1114ff858f6cb75f2bec39651402e958494cb223..ffc6197270b73eb0942bd91450136916507f2c65 100644 (file)
--- a/src/interfaces/ecpg/compatlib/Makefile
+++ b/src/interfaces/ecpg/compatlib/Makefile
@@ -14,7 +14,7 @@ include $(top_builddir)/src/Makefile.global
 
 NAME= ecpg_compat
 SO_MAJOR_VERSION= 1
-SO_MINOR_VERSION= 1
+SO_MINOR_VERSION= 2
 
 override CPPFLAGS := -I$(top_srcdir)/src/interfaces/ecpg/include -I$(libpq_srcdir) -I$(top_srcdir)/src/include/utils $(CPPFLAGS) $(THREAD_CPPFLAGS)
 SHLIB_LINK = -L../ecpglib -lecpg -L../pgtypeslib -lpgtypes $(libpq) \

diff --git a/src/interfaces/ecpg/compatlib/informix.c b/src/interfaces/ecpg/compatlib/informix.c
index 5773c45abee9e06b452c10fa6d8f886c186a2b3b..973d7a8547d4efc3e3633e08f878e7f4843af2d6 100644 (file)
--- a/src/interfaces/ecpg/compatlib/informix.c
+++ b/src/interfaces/ecpg/compatlib/informix.c
@@ -60,8 +60,7 @@ deccall3(decimal * arg1, decimal * arg2, decimal * result, int (*ptr) (numeric *
                           *nres;
        int                     i;
 
-       /* set it to null in case it errors out later */
-               rsetnull(CDECIMALTYPE, (char *) result);
+       /* we must NOT set the result to NULL here because it may be the same variable as one of the arguments */
        if (risnull(CDECIMALTYPE, (char *) arg1) || risnull(CDECIMALTYPE, (char *) arg2))
                return 0;
 
@@ -100,8 +99,13 @@ deccall3(decimal * arg1, decimal * arg2, decimal * result, int (*ptr) (numeric *
        i = (*ptr) (a1, a2, nres);
 
        if (i == 0)                                     /* No error */
+       {
+               
+               /* set the result to null in case it errors out later */
+               rsetnull(CDECIMALTYPE, (char *) result);
                PGTYPESnumeric_to_decimal(nres, result);
-
+       }
+       
        PGTYPESnumeric_free(nres);
        PGTYPESnumeric_free(a1);
        PGTYPESnumeric_free(a2);
@@ -268,7 +272,6 @@ decdiv(decimal * n1, decimal * n2, decimal * result)
        
        int                     i;
 
-       rsetnull(CDECIMALTYPE, (char *) result);
        i = deccall3(n1, n2, result, PGTYPESnumeric_div);
 
        if (i != 0)
@@ -293,7 +296,6 @@ decmul(decimal * n1, decimal * n2, decimal * result)
 {
        int                     i;
        
-       rsetnull(CDECIMALTYPE, (char *) result);        
        i = deccall3(n1, n2, result, PGTYPESnumeric_mul);
 
        if (i != 0)
@@ -315,7 +317,6 @@ decsub(decimal * n1, decimal * n2, decimal * result)
 {
        int                     i;
        
-       rsetnull(CDECIMALTYPE, (char *) result);
        i = deccall3(n1, n2, result, PGTYPESnumeric_sub);
 
        if (i != 0)