[英]Why does this compile in C but not C++ (sigaction)?
I get the following errors when trying to compile the below code using g++. 尝试使用g ++编译下面的代码时出现以下错误。 When I compile it using gcc it works fine (other than a few warnings). 当我使用gcc编译它时它工作正常(除了一些警告)。 Any help appreciated. 任何帮助赞赏。
g++ ush7.cpp
ush7.cpp: In function ‘int signalsetup(sigaction*, sigset_t*, void (*)(int))’:
ush7.cpp:93: error: expected unqualified-id before ‘catch’
ush7.cpp:95: error: expected primary-expression before ‘catch’
ush7.cpp:95: error: expected `;' before ‘catch’
ush7.cpp:97: error: expected primary-expression before ‘catch’
ush7.cpp:97: error: expected `;' before ‘catch’
ush7.cpp:100: error: expected primary-expression before ‘catch’
ush7.cpp:100: error: expected `)' before ‘catch’
ush7.cpp:108: error: expected `)' before ‘;’ token
ush7.cpp:108: error: expected `)' before ‘;’ token
ush7.cpp: In function ‘int makeargv(const char*, const char*, char***)’:
ush7.cpp:137: error: invalid conversion from ‘void*’ to ‘char*’
ush7.cpp:145: error: invalid conversion from ‘void*’ to ‘char**’
int signalsetup(struct sigaction *def, sigset_t *mask, void (*handler)(int))
{
struct sigaction catch;
catch.sa_handler = handler; /* Set up signal structures */
def->sa_handler = SIG_DFL;
catch.sa_flags = 0;
def->sa_flags = 0;
if ((sigemptyset(&(def->sa_mask)) == -1) ||
(sigemptyset(&(catch.sa_mask)) == -1) ||
(sigaddset(&(catch.sa_mask), SIGINT) == -1) ||
(sigaddset(&(catch.sa_mask), SIGQUIT) == -1) ||
(sigaction(SIGINT, &catch, NULL) == -1) ||
(sigaction(SIGQUIT, &catch, NULL) == -1) ||
(sigemptyset(mask) == -1) ||
(sigaddset(mask, SIGINT) == -1) ||
(sigaddset(mask, SIGQUIT) == -1))
return -1;
return 0;
}
如果您不想更改其余代码,则应该能够使用#define。
#define catch _catch
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