flang/test/Runtime/no-cpp-dep.c

   1 /*
   2 This test makes sure that flang's runtime does not depend on the C++ runtime
   3 library. It tries to link this simple file against libFortranRuntime.a with
   4 a C compiler.
   5
   6 REQUIRES: c-compiler
   7
   8 RUN: %cc -std=c99 %s -I%include %libruntime %libdecimal -lm -o /dev/null
   9 */
  10
  11 #include "flang/Runtime/entry-names.h"
  12 #include <stdint.h>
  13
  14 /*
  15 Manually add declarations for the runtime functions that we want to make sure
  16 we're testing. We can't include any headers directly since they likely contain
  17 C++ code that would explode here.
  18 */
  19 struct EnvironmentDefaultList;
  20 struct Descriptor;
  21
  22 double RTNAME(CpuTime)();
  23
  24 void RTNAME(ProgramStart)(
  25     int, const char *[], const char *[], const struct EnvironmentDefaultList *);
  26 int32_t RTNAME(ArgumentCount)();
  27 int32_t RTNAME(GetCommandArgument)(int32_t, const struct Descriptor *,
  28     const struct Descriptor *, const struct Descriptor *);
  29 int32_t RTNAME(GetEnvVariable)();
  30
  31 int main() {
  32   double x = RTNAME(CpuTime)();
  33   RTNAME(ProgramStart)(0, 0, 0, 0);
  34   int32_t c = RTNAME(ArgumentCount)();
  35   int32_t v = RTNAME(GetCommandArgument)(0, 0, 0, 0);
  36   int32_t e = RTNAME(GetEnvVariable)("FOO", 0, 0);
  37   return x + c + v + e;
  38 }