First up, a disclaimer: although I work for Embarcadero. I can’t speak for my employer. What I’m about to write is based on my own opinion of how a hypothetical 64-bit Delphi should work, but there may or may not be competing opinions and other foreseen or unforeseen incompatibilities and events that cause alternative design … Read more
Is it a good idea to use intptr_t as a general-purpose storage (to hold pointers and integer values) instead of void*? No. intptr_t is not guaranteed to exist. First, as you note, it was introduced in C99. Second, implementations are not required to have an integer type big enough to hold converted pointer values without … Read more
You can temporarily disable filesystem redirection around the call to Process.Start, the appropriate API’s to P/Invoke are Wow64DisableWow64FsRedirection and Wow64RevertWow64FsRedirection. Another option is to use %windir%\sysnative, which is available on Windows Vista and above.
The function to call is IsWow64Process or IsWow64Process2. It tells your 32-bit application if it is running on a 64 bit Windows. If the program is compiled for 64 bits, it will already know.
Yes, it is undefined behaviour. ISO/IEC 9899:1999 6.5.7 Bitwise shift operators ΒΆ3 The integer promotions are performed on each of the operands. The type of the result is that of the promoted left operand. If the value of the right operand is negative or is greater than or equal to the width of the promoted … Read more
You’ve run afoul of file system redirection. Because %windir%\System32 is reserved exclusively for 64-bit applications, on 64-bit versions of Windows, 32-bit applications that attempt to access the %windir%\System32 directory are automatically and transparent redirected to the 32-bit %windir%\SysWOW64 directory. First, make sure that your program actually does belong in the 64-bit system folder. Windows does … Read more
In C and C++ you have these least requirements (i.e actual implementations can have larger magnitudes) signed char: -2^07+1 to +2^07-1 short: -2^15+1 to +2^15-1 int: -2^15+1 to +2^15-1 long: -2^31+1 to +2^31-1 long long: -2^63+1 to +2^63-1 Now, on particular implementations, you have a variety of bit ranges. The wikipedia article describes this nicely.
for 32bit users… Don’t update “platform-tools” to version 23.1. foremost version you can use is 23.0.1 which you can download here If you are on 64bit machine and having trouble using the latest version of the plateform-tools.. check instructions here. thanks for the working link- @Tyler