28 lines
907 B
Plaintext
28 lines
907 B
Plaintext
dnl @synopsis AC_CXX_STRING_COMPARE_STRING_FIRST
|
|
dnl
|
|
dnl If the standard library string::compare() function takes the
|
|
dnl string as its first argument, define FUNC_STRING_COMPARE_STRING_FIRST to 1.
|
|
dnl
|
|
dnl @author Steven Robbins
|
|
dnl
|
|
AC_DEFUN([AC_CXX_STRING_COMPARE_STRING_FIRST],
|
|
[AC_CACHE_CHECK(whether std::string::compare takes a string in argument 1,
|
|
ac_cv_cxx_string_compare_string_first,
|
|
[AC_REQUIRE([AC_CXX_NAMESPACES])
|
|
AC_LANG_SAVE
|
|
AC_LANG_CPLUSPLUS
|
|
AC_TRY_COMPILE([#include <string>
|
|
#ifdef HAVE_NAMESPACES
|
|
using namespace std;
|
|
#endif],[string x("hi"); string y("h");
|
|
return x.compare(y,0,1) == 0;],
|
|
ac_cv_cxx_string_compare_string_first=yes,
|
|
ac_cv_cxx_string_compare_string_first=no)
|
|
AC_LANG_RESTORE
|
|
])
|
|
if test "$ac_cv_cxx_string_compare_string_first" = yes; then
|
|
AC_DEFINE(FUNC_STRING_COMPARE_STRING_FIRST,1,
|
|
[define if library uses std::string::compare(string,pos,n)])
|
|
fi
|
|
])
|