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 30702-bddb8d6928) Lines: 2553 2925 87.3 %
Date: 2026-02-23 02:23:56 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 333229
Fl2_inv_pre 146100
Fl2_mul_pre 1459667
Fl2_norm_pre 103853
Fl2_pow_pre 497958
Fl2_sqr_pre 3673664
Fl2_sqrt_pre 54395
Fl2_sqrtn_pre 56791
Fl_Flxq_log 27888
Fl_Xp1_powu 0
Fl_to_Flx 17779953
Flm_to_FlxV 2376
FlvV_polint_tree 2071396
Flv_Flm_polint 85806
Flv_inv 1437862
Flv_invVandermonde 131740
Flv_inv_i 1446340
Flv_inv_indir 37059
Flv_inv_inplace 8478
Flv_inv_pre 7158
Flv_inv_pre_indir 16031127
Flv_inv_pre_inplace 14614688
Flv_polint 1219304
Flv_prod 0
Flv_prod_pre 2886
Flv_producttree 1438967
Flv_roots_to_pol 639801
Flv_to_Flx 21455359
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 284136
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 88963
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 18354
FlxM_eval_powers_pre 19338
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 5157
FlxM_mul_Kronecker_i 69753
FlxM_neg 0
FlxM_pack_ZM 39938
FlxM_pack_ZM_bits 99493
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2099
FlxT_red 41646
FlxV_Flc_mul 29556
FlxV_Flv_multieval 2117
FlxV_Flv_multieval_tree 2117
FlxV_Flx_fromdigits 0
FlxV_composedsum 24349
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 146232
FlxV_to_Flm_lg 10942062
FlxV_to_FlxX 340933
FlxV_to_ZXV 518321
FlxV_to_ZXV_inplace 2560347
Flx_Fl2_eval_pre 9234
Flx_Fl_add 7746317
Flx_Fl_mul 5791057
Flx_Fl_mul_pre 14936151
Flx_Fl_mul_to_monic 9418108
Flx_Fl_sub 129061
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1473515
Flx_FlxM_qmul 5012
Flx_FlxqV_eval 4354
Flx_FlxqV_eval_pre 11112552
Flx_Flxq_eval 671329
Flx_Flxq_eval_pre 2057676
Flx_Frobenius 73760
Flx_Frobenius_pre 11342658
Flx_Laplace 22981
Flx_Newton 45508
Flx_add 54460930
Flx_addmulmul 295555
Flx_addshift 3525327
Flx_addspec 6868370
Flx_blocks 443514
Flx_blocks_Flm 10942062
Flx_composedprod 0
Flx_composedsum 23178
Flx_convol 0
Flx_deflate 357689
Flx_deriv 18580489
Flx_diff1 12384
Flx_digits 0
Flx_div_by_X_x 27941536
Flx_divrem 25730702
Flx_divrem_Barrett 386087
Flx_divrem_Barrettspec 612197
Flx_divrem_basecase 51814071
Flx_divrem_pre 66562678
Flx_double 1970444
Flx_equal 23517565
Flx_eval 17900014
Flx_eval2BILspec 594600
Flx_eval_powers_pre 38617478
Flx_eval_pre 116512923
Flx_extgcd 719682
Flx_extgcd_basecase 5265917
Flx_extgcd_halfgcd 105912
Flx_extgcd_pre 5265917
Flx_extresultant 45
Flx_extresultant_basecase 45
Flx_extresultant_pre 45
Flx_fromNewton 93162
Flx_gcd 27129343
Flx_gcd_basecase 69211340
Flx_gcd_pre 70548599
Flx_get_red 12275625
Flx_get_red_pre 81958158
Flx_halfgcd 0
Flx_halfgcd_all 121
Flx_halfgcd_all_i 912878
Flx_halfgcd_all_pre 912878
Flx_halfgcd_pre 732298
Flx_halfres_basecase 918020
Flx_halfres_i 932076
Flx_halfres_pre 844
Flx_halfres_split 14056
Flx_halfres_update_pre 7888
Flx_halve 11998
Flx_inflate 112748
Flx_integ 0
Flx_integXn 359199
Flx_invBarrett 0
Flx_invBarrett_Newton 16555
Flx_invBarrett_basecase 93442
Flx_invBarrett_pre 110917
Flx_invLaplace 45735
Flx_is_l_pow 6564
Flx_is_smooth 63648
Flx_is_smooth_pre 97800
Flx_is_smooth_squarefree 104364
Flx_is_squarefree 7109595
Flx_lgrenormalizespec 1455257
Flx_matFrobenius 0
Flx_matFrobenius_pre 73552
Flx_mod_Xn1 26660
Flx_mod_Xnm1 3652606
Flx_mul 22371082
Flx_mul_pre 312144199
Flx_mulhigh_i 802713
Flx_mullimb 1015171918
Flx_mullimb_ok 2733119058
Flx_mulspec 317001066
Flx_mulspec_Kronecker 5500769
Flx_mulspec_basecase 285670661
Flx_mulspec_halfmulii 4168
Flx_mulspec_mulii 6905
Flx_mulspec_mulii_inflate 290591
Flx_mulspec_quartmulii 68068
Flx_neg 2710792
Flx_neg_inplace 1688957
Flx_negspec 2710792
Flx_normalize 51316108
Flx_powu 0
Flx_powu_pre 72
Flx_recip 0
Flx_recipspec 5817123
Flx_red 1410367
Flx_rem 35160563
Flx_rem_basecase 656244026
Flx_rem_pre 757926082
Flx_renormalize 1775582276
Flx_rescale 974
Flx_resultant 3835739
Flx_resultant_basecase_pre 12140335
Flx_resultant_pre 12141375
Flx_shift 22913771
Flx_shiftip 515880619
Flx_splitting 102874
Flx_sqr 295757
Flx_sqr_pre 222711547
Flx_sqrspec 222814173
Flx_sqrspec_Kronecker 508273
Flx_sqrspec_basecase 222027114
Flx_sqrspec_halfsqri 111
Flx_sqrspec_quartsqri 7474
Flx_sqrspec_sqri 1380
Flx_sqrspec_sqri_inflate 10029
Flx_sub 115368827
Flx_subspec 607022
Flx_to_Flv 56037647
Flx_to_FlxX 60511
Flx_to_ZX 31914868
Flx_to_ZX_inplace 30849929
Flx_to_int_halfspec 394757
Flx_to_int_quartspec 143610
Flx_translate1 14356
Flx_translate1_basecase 23026
Flx_triple 843254
Flx_unscale 0
Flx_val 3407411
Flx_valrem 21902913
Flxn_div 47431
Flxn_div_pre 47431
Flxn_exp 0
Flxn_expint 93162
Flxn_inv 843
Flxn_mul 64497
Flxn_mul_pre 4354726
Flxn_mulhigh 443514
Flxn_recip 184178
Flxn_red 5348951
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 199978
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 69753
FlxqM_red_pre 69753
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 97362
FlxqX_dotproduct 1642
Flxq_autpow 6
Flxq_autpow_msqr 17738
Flxq_autpow_pre 59361
Flxq_autpow_sqr 40489
Flxq_autpowers 1414
Flxq_autsum 0
Flxq_autsum_mul 95798
Flxq_autsum_pre 84302
Flxq_autsum_sqr 89696
Flxq_auttrace 0
Flxq_auttrace_mul 652981
Flxq_auttrace_pre 805269
Flxq_auttrace_sqr 547190
Flxq_charpoly 2622
Flxq_conjvec 17
Flxq_div 203896
Flxq_div_pre 1982230
Flxq_easylog 434502
Flxq_inv 285738
Flxq_inv_pre 3566303
Flxq_invsafe 579347
Flxq_invsafe_pre 4546235
Flxq_is2npower 0
Flxq_issquare 346674
Flxq_log 137161
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 97362
Flxq_lroot_pre 21474
Flxq_matrix_pow 342
Flxq_matrix_pow_pre 145182
Flxq_minpoly 37599
Flxq_minpoly_pre 678703
Flxq_mul 11288044
Flxq_mul_pre 155521098
Flxq_norm 379684
Flxq_order 83220
Flxq_pow 780951
Flxq_pow_Frobenius 19652757
Flxq_pow_init 0
Flxq_pow_init_pre 24
Flxq_pow_pre 20532261
Flxq_pow_table 0
Flxq_pow_table_pre 3768
Flxq_powers 198097
Flxq_powers_pre 19034576
Flxq_powu 415694
Flxq_powu_pre 19490071
Flxq_sqr 2368105
Flxq_sqr_pre 222000914
Flxq_sqrt 195535
Flxq_sqrt_pre 195535
Flxq_sqrtl_spec_pre 32154
Flxq_sqrtn 19584
Flxq_sqrtn_spec_pre 18661
Flxq_sumautsum_msqr 35002
Flxq_sumautsum_pre 180565
Flxq_sumautsum_sqr 252991
Flxq_trace 4025
Flxq_transmul 3525371
Flxq_transmul_init 1464596
RgXV_to_FlxV 6
RgX_to_Flx 1885882
Rg_to_F2 1461496
Rg_to_Fl 62399861
Rg_to_Flxq 3031066
ZM_unpack_FlxM 19972
ZM_unpack_FlxM_bits 49781
ZXT_to_FlxT 3158922
ZXV_to_FlxV 0
ZX_to_Flx 141505428
Z_mod2BIL_Flx 300620
Z_mod2BIL_Flx_2 303550
Z_mod2BIL_Flx_3 0
Z_to_Flx 6132532
ZpX_invLaplace_init 424
_Fl2_mul 1434785
_Fl2_pow 497958
_Fl2_rand 85088
_Fl2_sqr 3673664
_Flx_add 0
_Flx_composedsum 3320
_Flx_divrem 0
_Flx_mul 8948328
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 330516
_Flxq_equal0 58323
_Flxq_inv 8021
_Flxq_mul 120819220
_Flxq_neg 310773
_Flxq_one 19038344
_Flxq_pow 19646488
_Flxq_powu 58
_Flxq_powu_i 18455505
_Flxq_rand 5563
_Flxq_red 1326453
_Flxq_rmul 1251136
_Flxq_s 5553
_Flxq_sqr 215601816
bounded_order 331555
gener_Flxq 6082
get_Fl_threshold 1915496058
get_Flx_red 811296296
get_Flxq_field 59003
get_Flxq_star 239042
init_invlaplace 8902
int_to_Flx 8285
int_to_Flx_half 428222
int_to_Flx_quart 75542
kron_pack_Flx_spec 49779
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 16297543
kron_pack_Flx_spec_half 580559
kron_unpack_Flx 39855
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 4335966
kron_unpack_Flx_bits_wide 4480811
matJ2_FlxM 11
matid2_FlxM 731
maxbitcoeffpol 6397768
mkF2 5482235
monomial_Flx 789955
random_Flx 2233495
set_Flxq 59020
set_Flxq_pre 58498435
translate_basecase 32360
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 8478
zlx_translate1 18004
zx_to_Flx 4767084

Generated by: LCOV version 1.16