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