On Wed, Dec 17, 2025 at 11:44:31AM +0100, Tomasz Kaminski wrote:
> Still we will need to check if we are causing any regressions here,
> but the old implementation static_assert is_floating_point_v so we should
> not cause any, unless that allows __float128.

But we are causing exactly that.

FAIL: 26_numerics/random/bernoulli_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/bernoulli_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/binomial_distribution/114359.cc  -std=gnu++17 (test 
for excess errors)
UNRESOLVED: 26_numerics/random/binomial_distribution/114359.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: 26_numerics/random/binomial_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/binomial_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/cauchy_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/cauchy_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/chi_squared_distribution/83833.cc  -std=gnu++17 (test 
for excess errors)
UNRESOLVED: 26_numerics/random/chi_squared_distribution/83833.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: 26_numerics/random/chi_squared_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/chi_squared_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/discrete_distribution/operators/call-default.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/discrete_distribution/operators/call-default.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/discrete_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/discrete_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/exponential_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/exponential_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/extreme_value_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 
26_numerics/random/extreme_value_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/fisher_f_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/fisher_f_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/gamma_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/gamma_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/geometric_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/geometric_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/lognormal_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/lognormal_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/negative_binomial_distribution/operators/58302.cc  
-std=gnu++17 (test for excess errors)
FAIL: 26_numerics/random/negative_binomial_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 
26_numerics/random/negative_binomial_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/normal_distribution/operators/equal.cc  -std=gnu++17 
(test for excess errors)
UNRESOLVED: 26_numerics/random/normal_distribution/operators/equal.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/normal_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/normal_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 
26_numerics/random/piecewise_constant_distribution/operators/call-default.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 
26_numerics/random/piecewise_constant_distribution/operators/call-default.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/piecewise_constant_distribution/operators/serialize.cc 
 -std=gnu++17 (test for excess errors)
UNRESOLVED: 
26_numerics/random/piecewise_constant_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 
26_numerics/random/piecewise_linear_distribution/operators/call-default.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 
26_numerics/random/piecewise_linear_distribution/operators/call-default.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/piecewise_linear_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 
26_numerics/random/piecewise_linear_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/poisson_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/poisson_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/pr60037-neg.cc  -std=gnu++17  (test for errors, line 
3480)
FAIL: 26_numerics/random/pr60037-neg.cc  -std=gnu++17 (test for excess errors)
FAIL: 26_numerics/random/student_t_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/student_t_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/uniform_real_distribution/operators/64351.cc  
-std=gnu++17 execution test
FAIL: 26_numerics/random/uniform_real_distribution/operators/gencanon.cc  
-std=gnu++17 execution test
FAIL: 26_numerics/random/uniform_real_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/uniform_real_distribution/operators/serialize.cc 
 -std=gnu++17 compilation failed to produce executable
FAIL: 26_numerics/random/weibull_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 26_numerics/random/weibull_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/arcsine_distribution/operators/serialize.cc  -std=gnu++17 
(test for excess errors)
UNRESOLVED: ext/random/arcsine_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/beta_distribution/operators/serialize.cc  -std=gnu++17 (test 
for excess errors)
UNRESOLVED: ext/random/beta_distribution/operators/serialize.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: ext/random/hoyt_distribution/operators/serialize.cc  -std=gnu++17 (test 
for excess errors)
UNRESOLVED: ext/random/hoyt_distribution/operators/serialize.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: ext/random/hypergeometric_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: ext/random/hypergeometric_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/k_distribution/operators/serialize.cc  -std=gnu++17 (test for 
excess errors)
UNRESOLVED: ext/random/k_distribution/operators/serialize.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: ext/random/logistic_distribution/operators/serialize.cc  -std=gnu++17 
(test for excess errors)
UNRESOLVED: ext/random/logistic_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/nakagami_distribution/operators/serialize.cc  -std=gnu++17 
(test for excess errors)
UNRESOLVED: ext/random/nakagami_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/normal_mv_distribution/operators/serialize.cc  -std=gnu++17 
(test for excess errors)
UNRESOLVED: ext/random/normal_mv_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/pareto_distribution/operators/serialize.cc  -std=gnu++17 (test 
for excess errors)
UNRESOLVED: ext/random/pareto_distribution/operators/serialize.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: ext/random/rice_distribution/operators/serialize.cc  -std=gnu++17 (test 
for excess errors)
UNRESOLVED: ext/random/rice_distribution/operators/serialize.cc  -std=gnu++17 
compilation failed to produce executable
FAIL: ext/random/triangular_distribution/operators/serialize.cc  -std=gnu++17 
(test for excess errors)
UNRESOLVED: ext/random/triangular_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/uniform_inside_sphere_distribution/operators/generate.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: ext/random/uniform_inside_sphere_distribution/operators/generate.cc 
 -std=gnu++17 compilation failed to produce executable
FAIL: ext/random/uniform_inside_sphere_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: 
ext/random/uniform_inside_sphere_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/uniform_on_sphere_distribution/operators/generate.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: ext/random/uniform_on_sphere_distribution/operators/generate.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/uniform_on_sphere_distribution/operators/serialize.cc  
-std=gnu++17 (test for excess errors)
UNRESOLVED: ext/random/uniform_on_sphere_distribution/operators/serialize.cc  
-std=gnu++17 compilation failed to produce executable
FAIL: ext/random/von_mises_distribution/operators/serialize.cc  -std=gnu++17 
(test for excess errors)
FAIL: std/ranges/adaptors/93978.cc  -std=gnu++20 (test for excess errors)
FAIL: std/ranges/adaptors/93978.cc  -std=gnu++26 (test for excess errors)

all now FAIL on i686-linux.

        Jakub

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