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Fix seg fault handling template parameter expressions containing '>='

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Issue #1037
This commit is contained in:
William S Fulton 2022-11-22 21:40:38 +00:00
commit ca5c68e544
3 changed files with 14 additions and 14 deletions
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3
CHANGES.current
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@ -8,7 +8,8 @@ Version 4.2.0 (in progress)
===========================
2022-11-22: wsfulton
#1037 Fix seg fault handling template parameter expressions containing '<='.
#1037 Fix seg fault handling template parameter expressions containing '<='
or '>='.
2022-11-18: wsfulton
Duplicate class template instantiations via %template now issue a warning and are ignored.

3
Examples/test-suite/cpp17_enable_if_t.i
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@ -44,9 +44,6 @@ void tester() {
template <typename T, std::enable_if_t<sizeof(T) <= 4>>
void destId(T el) {}
/*
not yet fixed
template <typename T, std::enable_if_t<sizeof(T) >= 3>>
void destId(const T& el) {}
*/
%}

22
Source/Swig/typeobj.c
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@ -1043,16 +1043,17 @@ String *SwigType_templateprefix(const SwigType *t) {
* ----------------------------------------------------------------------------- */
String *SwigType_templatesuffix(const SwigType *t) {
const char *c;
const char *c, *d;
c = Char(t);
while (*c) {
d = c + strlen(c);
while (d > c) {
if ((*c == '<') && (*(c + 1) == '(')) {
int nest = 1;
c++;
while (*c && nest) {
if (*c == '<')
while ((d > c) && nest) {
if (*c == '<' && *(c + 1) == '(')
nest++;
if (*c == '>')
if (*c == '>' && *(c - 1) == ')')
nest--;
c++;
}
@ -1120,18 +1121,19 @@ String *SwigType_istemplate_only_templateprefix(const SwigType *t) {
* ----------------------------------------------------------------------------- */
String *SwigType_templateargs(const SwigType *t) {
const char *c;
const char *c, *d;
const char *start;
c = Char(t);
while (*c) {
d = c + strlen(c);
while (d > c) {
if ((*c == '<') && (*(c + 1) == '(')) {
int nest = 1;
start = c;
c++;
while (*c && nest) {
if (*c == '<')
while ((d > c) && nest) {
if (*c == '<' && *(c + 1) == '(')
nest++;
if (*c == '>')
if (*c == '>' && *(c - 1) == ')')
nest--;
c++;
}