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Fixes to remove "dereferencing type-punned pointer will break strict-aliasing rules" warnings in C wrappers when compiling C code with 'gcc -Wall -fstrict-aliasing'. Patch from Michael Cahill.

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7192 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
William S Fulton 2005-05-13 23:14:35 +00:00
commit 94e6c86d06
6 changed files with 33 additions and 24 deletions
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28
Lib/java/java.swg
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@ -576,7 +576,7 @@
/* Default handling. Object passed by value. Convert to a pointer */
%typemap(in) SWIGTYPE ($&1_type argp)
%{ argp = *($&1_ltype*)&$input;
%{ argp = *($&1_ltype*)(void *)&$input;
if (!argp) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "Attempt to dereference null $1_type");
return $null;
@ -584,7 +584,7 @@
$1 = *argp; %}
%typemap(directorout) SWIGTYPE ($1_ltype argp)
%{ argp = *($&1_ltype)&$input;
%{ argp = *($&1_ltype)(void *)&$input;
if (!argp) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "Attempt to dereference null $1_type");
return $null;
@ -593,45 +593,45 @@
%typemap(out) SWIGTYPE
#ifdef __cplusplus
%{*($&1_ltype*)&$result = new $1_ltype(($1_ltype &)$1); %}
%{*($&1_ltype*)(void *)&$result = new $1_ltype(($1_ltype &)$1); %}
#else
{
$&1_ltype $1ptr = ($&1_ltype) malloc(sizeof($1_ltype));
memmove($1ptr, &$1, sizeof($1_type));
*($&1_ltype*)&$result = $1ptr;
*($&1_ltype*)(void *)&$result = $1ptr;
}
#endif
%typemap(directorin,descriptor="L$packagepath/$&javaclassname;") SWIGTYPE "*(($&1_type)&$input) = &$1;"
%typemap(directorin,descriptor="L$packagepath/$&javaclassname;") SWIGTYPE "*(($&1_type)(void *)&$input) = &$1;"
%typemap(javadirectorin) SWIGTYPE "new $&javaclassname($jniinput, false)"
%typemap(javadirectorout) SWIGTYPE "$&javaclassname.getCPtr($javacall)"
/* Generic pointers and references */
%typemap(in) SWIGTYPE *, SWIGTYPE (CLASS::*) %{ $1 = *($&1_ltype)&$input; %}
%typemap(in) SWIGTYPE & %{ $1 = *($&1_ltype)&$input;
%typemap(in) SWIGTYPE *, SWIGTYPE (CLASS::*) %{ $1 = *($&1_ltype)(void *)&$input; %}
%typemap(in) SWIGTYPE & %{ $1 = *($&1_ltype)(void *)&$input;
if(!$1) {
SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "$1_type reference is null");
return $null;
} %}
%typemap(out) SWIGTYPE *, SWIGTYPE (CLASS::*)
%{ *($&1_ltype)&$result = $1; %}
%{ *($&1_ltype)(void *)&$result = $1; %}
%typemap(out) SWIGTYPE &
%{ *($&1_ltype)&$result = $1; %}
%{ *($&1_ltype)(void *)&$result = $1; %}
%typemap(directorout) SWIGTYPE *, SWIGTYPE (CLASS::*)
%{ $1 = *($&1_ltype)&$input; %}
%{ $1 = *($&1_ltype)(void *)&$input; %}
%typemap(directorin,descriptor="L$packagepath/$javaclassname;") SWIGTYPE *, SWIGTYPE (CLASS::*)
%{ *(($&1_ltype)&$input) = ($1_ltype) $1; %}
%{ *(($&1_ltype)(void *)&$input) = ($1_ltype) $1; %}
%typemap(directorin,descriptor="L$packagepath/$javaclassname;") SWIGTYPE &
%{ *($&1_ltype)&$input = ($1_ltype) &$1; %}
%{ *($&1_ltype)(void *)&$input = ($1_ltype) &$1; %}
%typemap(javadirectorin) SWIGTYPE *, SWIGTYPE (CLASS::*), SWIGTYPE &, const SWIGTYPE & "new $javaclassname($jniinput, false)"
%typemap(javadirectorout) SWIGTYPE *, SWIGTYPE (CLASS::*), SWIGTYPE &, const SWIGTYPE & "$javaclassname.getCPtr($javacall)"
/* Default array handling */
%typemap(in) SWIGTYPE [] %{ $1 = *($&1_ltype)&$input; %}
%typemap(out) SWIGTYPE [] %{ *($&1_ltype)&$result = $1; %}
%typemap(in) SWIGTYPE [] %{ $1 = *($&1_ltype)(void *)&$input; %}
%typemap(out) SWIGTYPE [] %{ *($&1_ltype)(void *)&$result = $1; %}
%typemap(freearg) SWIGTYPE [ANY], SWIGTYPE [] ""
/* char arrays - treat as String */