Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30634-7c77b4d1a9) Lines: 2553 2925 87.3 %
Date: 2026-01-26 09:23:16 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2063
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3960
Flxq_pow_table_pre 4392
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6543
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7098
gener_Flxq 7201
Flx_is_l_pow 8189
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10147
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14368
Flx_translate1 17029
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27327
Flx_composedsum 27548
FlxV_composedsum 28967
Flx_translate1_basecase 29111
Flx_mod_Xn1 31511
FlxV_Flc_mul 34482
Fl_Flxq_log 35557
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42278
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47314
Flv_inv_indir 52209
kron_pack_Flx_spec 53168
Flx_Newton 54087
Flx_invLaplace 54353
Flxn_div 56313
Flxn_div_pre 56350
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69448
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75839
Fl2_sqrtn_pre 76051
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86564
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98769
FlxC_to_ZXC 104060
Flv_Flm_polint 104558
Flxq_autsum_sqr 105111
int_to_Flx_quart 107384
Flx_fromNewton 109383
Flxn_expint 109387
Flxq_autsum_mul 112473
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113745
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118494
Flx_is_smooth_squarefree 126656
Fl2_norm_pre 127597
Flx_invBarrett_basecase 134390
Flx_extgcd_halfgcd 146656
Flx_splitting 147659
Flx_Fl_sub 151682
Flv_invVandermonde 153445
Flx_invBarrett_pre 158850
Flx_inflate 160606
Flxq_log 164210
Flxq_matrix_pow_pre 170656
FlxV_to_Flm 171875
Fl2_inv_pre 197308
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210713
Flxn_recip 217311
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232013
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
Flx_mulspec_mulii_inflate 294045
Flxq_sumautsum_sqr 295314
FlxT_red 297212
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
FlxC_eval_powers_pre 325162
Flxq_inv 335771
Flx_sqr 354730
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395366
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416798
Flx_deflate 420789
Flx_integXn 422751
Flxq_norm 443136
Fl2_equal1 449742
Flx_to_int_halfspec 468590
Flxq_powu 488336
int_to_Flx_half 507058
Flxq_easylog 519359
Flxn_mulhigh 526071
Flx_blocks 526136
Flx_eval2BILspec 603293
Flx_divrem_Barrett 605424
FlxV_to_ZXV 606743
Flxq_auttrace_sqr 652921
Flxq_invsafe 670236
_Fl2_pow 671515
Fl2_pow_pre 671526
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695127
Flxq_auttrace_mul 780241
Flx_Flxq_eval 791300
Flxq_minpoly_pre 809705
Flv_roots_to_pol 842085
Flx_extgcd 856686
Flx_halfgcd_pre 873164
Flx_subspec 899062
Flx_divrem_Barrettspec 906578
monomial_Flx 941239
Flx_mulhigh_i 947937
Flxq_pow 948208
Flxq_auttrace_pre 960026
Flx_triple 1049261
Flx_halfgcd_all_i 1127005
Flx_halfgcd_all_pre 1127008
Flx_halfres_basecase 1134082
Flx_halfres_i 1154049
_Flxq_rmul 1461838
Flv_polint 1485171
_Flxq_red 1550928
Rg_to_F2 1710213
Flv_inv 1744429
Flv_producttree 1745653
Flxq_transmul_init 1746305
Flv_inv_i 1756436
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785959
Flx_red 1882661
_Fl2_mul 1922674
Fl2_mul_pre 1951703
Flx_lgrenormalizespec 2135620
RgX_to_Flx 2249940
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444573
FlvV_polint_tree 2587535
random_Flx 2646039
Flxq_sqr 2763152
FlxV_to_ZXV_inplace 3031504
Flx_negspec 3264989
Flx_neg 3265001
Rg_to_Flxq 3588257
Flx_addshift 3729093
ZXT_to_FlxT 3813739
Flxq_transmul 4212525
Flxq_inv_pre 4286489
Flx_val 4466290
Flx_resultant 4733723
_Fl2_sqr 4904064
Fl2_sqr_pre 4904074
Flx_mod_Xnm1 4907694
Flxn_mul_pre 5179083
Flxq_invsafe_pre 5429297
kron_unpack_Flx_bits_narrow 5665886
kron_unpack_Flx_bits_wide 5667461
Flx_extgcd_pre 6285961
Flx_extgcd_basecase 6286006
Flxn_red 6361251
zx_to_Flx 6390275
Flx_addspec 7259598
Flx_recipspec 7288891
mkF2 7315709
Flx_Fl_mul 7328174
Flx_mulspec_Kronecker 7356403
Z_to_Flx 7556381
maxbitcoeffpol 8486122
Flx_is_squarefree 9180488
Flx_Fl_add 9846997
_Flx_mul 11783205
Flx_Fl_mul_to_monic 11856390
Flx_blocks_Flm 12966680
FlxV_to_Flm_lg 12967397
Flx_FlxqV_eval_pre 13165949
Flxq_mul 13192511
Flx_Frobenius_pre 13812963
Flx_get_red 14502447
Flx_resultant_basecase_pre 14598280
Flx_resultant_pre 14600433
Flx_Fl_mul_pre 18291658
Flv_inv_pre_inplace 19290577
Flx_eval 20422921
kron_pack_Flx_spec_bits 21001029
Flv_inv_pre_indir 21022390
Fl_to_Flx 21936754
Flxq_powers_pre 22435217
_Flxq_one 22436069
_Flxq_powu_i 22922173
Flx_deriv 22982029
_Flxq_pow 23755644
Flxq_pow_Frobenius 23763052
Flxq_powu_pre 24177530
Flxq_pow_pre 24826443
Flv_to_Flx 25485641
Flx_shift 27396976
Flx_mul 27810812
Flx_equal 28257918
Flx_valrem 28464819
Flx_divrem 30447877
Flx_gcd 35021934
Flx_to_ZX_inplace 36568686
Flx_div_by_X_x 36578008
Flx_to_ZX 38296867
Flx_rem 42218125
Flx_eval_powers_pre 48507816
Flx_divrem_basecase 62280277
Flx_normalize 64800869
Flx_add 66121692
Flx_to_Flv 66640798
set_Flxq_pre 70738559
Rg_to_Fl 73209616
Flx_divrem_pre 79717629
Flx_gcd_basecase 85763501
Flx_gcd_pre 87427773
Flx_get_red_pre 98487874
Flx_eval_pre 136147410
Flx_sub 138639070
_Flxq_mul 149494254
ZX_to_Flx 171000947
Flxq_mul_pre 190673970
_Flxq_sqr 268218021
Flxq_sqr_pre 276016294
Flx_sqr_pre 276978977
Flx_sqrspec_basecase 277304514
Flx_sqrspec 277307256
Flx_mulspec_basecase 350085758
Flx_mul_pre 381885851
Flx_mulspec 387567788
Flx_shiftip 635861684
Flx_rem_basecase 803149525
Flx_rem_pre 926576395
get_Flx_red 990630879
Flx_mullimb 1188257884
Flx_renormalize 2159401719
get_Fl_threshold 2338191264
Flx_mullimb_ok 3408392774

Generated by: LCOV version 1.16