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UI: Copy va_list in strprintf on non-Windows 

On operating systems other than Windows, va_list has to be copied when
you pass it to a new function otherwise it becomes corrupted
master
jp9000 2022-08-24 20:23:13 -07:00
parent 2ca0e7cc1a
commit 896de392cd
1 changed files with 10 additions and 3 deletions
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13
UI/nix-update/nix-update-helpers.cpp
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@ -4,22 +4,29 @@
std::string vstrprintf(const char *format, va_list args)
{
va_list args2;
if (!format)
return std::string();
va_copy(args2, args);
std::string str;
int size = (int)vsnprintf(nullptr, 0, format, args) + 1;
int size = (int)vsnprintf(nullptr, 0, format, args2) + 1;
str.resize(size);
vsnprintf(&str[0], size, format, args);
vsnprintf(&str[0], size, format, args2);
va_end(args2);
return str;
}
std::string strprintf(const char *format, ...)
{
std::string str;
va_list args;
va_start(args, format);
std::string str;
str = vstrprintf(format, args);
va_end(args);