blob: 07bb410a444921172483d82e3ebbf43dde8f7103 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
#include "config.h"
#include "except.h"
#include <cstdio>
#include <cstdarg>
#include "opthelpers.h"
namespace al {
/* Defined here to avoid inlining it. */
base_exception::~base_exception() { }
void base_exception::setMessage(const char* msg, std::va_list args)
{
std::va_list args2;
va_copy(args2, args);
int msglen{std::vsnprintf(nullptr, 0, msg, args)};
if LIKELY(msglen > 0)
{
mMessage.resize(static_cast<size_t>(msglen)+1);
std::vsnprintf(&mMessage[0], mMessage.length(), msg, args2);
mMessage.pop_back();
}
va_end(args2);
}
} // namespace al
|