Get rid CL_REQUIRE/CL_PROVIDE(cl_fmt_scaleexp), it is not necessary.

Move a bunch of static objects (tenth, SF_zero, FF_zero, etc) into
the function get_float_params (which is the only user of those variables)
in order to avoid possible static order initialization problems.

src/real/format-output/cl_fmt_scaleexp.cc

@@ -3,8 +3,6 @@
 // General includes.
 #include "cl_sysdep.h"
 
-CL_PROVIDE(cl_fmt_scaleexp)
-
 // Specification.
 #include "cl_format.h"
 
@@ -38,6 +36,8 @@ struct float_format_params {
 		: zero(a), one(b), ten(c), tenth(d), lg2(e) {}
 };
 
+static const float_format_params get_float_params (const cl_F& arg)
+{
 	static const cl_RA tenth = (cl_RA)"1/10";
 	static const cl_SF SF_zero = cl_RA_to_SF(0);
 	static const cl_SF SF_one = cl_RA_to_SF(1);
@@ -54,8 +54,6 @@ static const cl_DF DF_tenth = cl_RA_to_DF(tenth);
 	static const cl_SF SF_lg2 = (cl_SF)"0.30103";
 	static const cl_DF DF_lg2 = (cl_DF)"0.30102999566";
 
-static const float_format_params get_float_params (const cl_F& arg)
-{
 	floattypecase(arg
 	,	return float_format_params(SF_zero,SF_one,SF_ten,SF_tenth,SF_lg2);
 	,	return float_format_params(FF_zero,FF_one,FF_ten,FF_tenth,SF_lg2);
@@ -115,4 +113,3 @@ const decoded_float format_scale_exponent (const cl_F& arg)
 
 }  // namespace cln
 
-CL_PROVIDE_END(cl_fmt_scaleexp)

src/real/format-output/cl_format.h

@@ -52,7 +52,6 @@ extern void format_integer (std::ostream& stream, const cl_I& arg, unsigned int
 // arg = mantissa * 10^n * sign (also 10^(n-1) <= abs(arg) < 10^n ).
 // (Bei arg=0.0: 0.0 und n=0.)
 extern const decoded_float format_scale_exponent (const cl_F& arg);
-CL_REQUIRE(cl_fmt_scaleexp)
 
 // format_float_to_string(arg,width,d,k,dmin)
 // ergibt einen String zum Floating-point arg:
@@ -70,7 +69,6 @@ struct digits_with_dot {
 		: string(s), length(l), dot_comes_first(df), dot_comes_last(dl), dot_position(dp) {}
 };
 extern const digits_with_dot format_float_to_string (const cl_F& arg, const sintL width, const sintL d, const sintL k, const sintL dmin);
-CL_REQUIRE(cl_fmt_floatstring)
 
 }  // namespace cln