Technical facts

Application type(s)

Desktop application

Operating system(s) or programming environment(s)

Lubuntu 12.10 (quantal)

IDE(s):

Qt Creator 2.5.2

Project type:

Console application

C++ standard:

C: How to use Qt Creator to compile C code?

Compiler(s):

G++ 4.7.2

Libraries used:

STL: GNU ISO C++ Library, version 4.7.2

Qt project file: CppHelloNagC.pro


QT       -= core

QT       -= gui



INCLUDEPATH += /opt/NAG/cll3a09dgl/include



LIBS += -L/opt/NAG/cll3a09dgl/lib -lnagc_nag



#opt/NAG/cll3a09dgl/lib/libnagc_nag.so:-1: error: undefined reference to `sqrt'

QMAKE_LFLAGS += -lm

LIBS += -lm



#Compile with GNU C compiler

QMAKE_CXX = gcc

QMAKE_CXXFLAGS = -x c



CONFIG   += console

CONFIG   -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

main.cpp


#include <math.h>

#include <nag.h>

#include <nag_stdlib.h>



int main(void)

{

  char * s = 0;

  s = NAG_ALLOC(11,char);

  if (!s)

  {

    printf("Cannot allocate memory for s");

    return 1;

  }

  sprintf(s, "Hello NAG");

  puts(s);

  NAG_FREE(s);

  return 0;

}

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(C++) Hello NAG using C

Technical facts

Qt project file: CppHelloNagC.pro

main.cpp