062644bb39
As `external-hello-world` is not really a test, I am moving it from `flang/unittest/Runtime` to `flang/examples` (it makes a lot of sense as an example). I've not modified the source code (apart from adjusting the include paths). Differential Revision: https://reviews.llvm.org/D104320
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
#include "../runtime/io-api.h"
|
|
#include "../runtime/main.h"
|
|
#include "../runtime/stop.h"
|
|
#include <cstring>
|
|
#include <limits>
|
|
|
|
using namespace Fortran::runtime::io;
|
|
|
|
void output1() {
|
|
auto io{IONAME(BeginExternalListOutput)()};
|
|
const char str[]{"Hello, world!"};
|
|
IONAME(OutputAscii)(io, str, std::strlen(str));
|
|
IONAME(OutputInteger64)(io, 678);
|
|
IONAME(OutputReal64)(io, 0.0);
|
|
IONAME(OutputReal64)(io, 2.0 / 3.0);
|
|
IONAME(OutputReal64)(io, 1.0e99);
|
|
IONAME(OutputReal64)(io, std::numeric_limits<double>::infinity());
|
|
IONAME(OutputReal64)(io, -std::numeric_limits<double>::infinity());
|
|
IONAME(OutputReal64)(io, std::numeric_limits<double>::quiet_NaN());
|
|
IONAME(OutputComplex64)(io, 123.0, -234.0);
|
|
IONAME(OutputLogical)(io, false);
|
|
IONAME(OutputLogical)(io, true);
|
|
IONAME(EndIoStatement)(io);
|
|
}
|
|
|
|
void input1() {
|
|
auto io{IONAME(BeginExternalListOutput)()};
|
|
const char prompt[]{"Enter an integer value:"};
|
|
IONAME(OutputAscii)(io, prompt, std::strlen(prompt));
|
|
IONAME(EndIoStatement)(io);
|
|
|
|
io = IONAME(BeginExternalListInput)();
|
|
std::int64_t n{-666};
|
|
IONAME(InputInteger)(io, n);
|
|
IONAME(EndIoStatement)(io);
|
|
|
|
io = IONAME(BeginExternalListOutput)();
|
|
const char str[]{"Result:"};
|
|
IONAME(OutputAscii)(io, str, std::strlen(str));
|
|
IONAME(OutputInteger64)(io, n);
|
|
IONAME(EndIoStatement)(io);
|
|
}
|
|
|
|
int main(int argc, const char *argv[], const char *envp[]) {
|
|
RTNAME(ProgramStart)(argc, argv, envp);
|
|
output1();
|
|
input1();
|
|
RTNAME(PauseStatement)();
|
|
RTNAME(ProgramEndStatement)();
|
|
return 0;
|
|
}
|