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

Generated by: LCOV version 1.16