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 30793-1ceee7ca5f) Lines: 2553 2925 87.3 %
Date: 2026-04-10 09:27:03 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449187
Fl2_inv_pre 197039
Fl2_mul_pre 17090193
Fl2_norm_pre 97118514
Fl2_pow_pre 670749
Fl2_sqr_pre 4904744
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 75993
Fl_Flxq_log 35567
Fl_Xp1_powu 0
Fl_to_Flx 21950684
Flm_to_FlxV 2772
FlvV_polint_tree 2587751
Flv_Flm_polint 104558
Flv_inv 1744796
Flv_invVandermonde 153445
Flv_inv_i 1756810
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21047199
Flv_inv_pre_inplace 19312802
Flv_polint 1485532
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1746008
Flv_roots_to_pol 842031
Flv_to_Flx 25492058
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 325156
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 7099
FlxM_mul_Kronecker_i 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 299631
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28993
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171869
FlxV_to_Flm_lg 12971527
FlxV_to_FlxX 397987
FlxV_to_ZXV 609510
FlxV_to_ZXV_inplace 3032526
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844392
Flx_Fl_mul 9423715
Flx_Fl_mul_pre 20198564
Flx_Fl_mul_to_monic 11858661
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786309
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170346
Flx_Flxq_eval 791509
Flx_Flxq_eval_pre 2444892
Flx_Frobenius 86614
Flx_Frobenius_pre 13818500
Flx_Laplace 27495
Flx_Newton 54369
Flx_add 73822798
Flx_addmulmul 358986
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527797
Flx_blocks_Flm 12971077
Flx_composedprod 0
Flx_composedsum 27685
Flx_convol 0
Flx_deflate 421320
Flx_deriv 23015683
Flx_diff1 660655
Flx_digits 0
Flx_div_by_X_x 36559694
Flx_divrem 30451588
Flx_divrem_Barrett 606115
Flx_divrem_Barrettspec 906948
Flx_divrem_basecase 61242324
Flx_divrem_pre 78686036
Flx_double 1179459
Flx_equal 27533207
Flx_eval 20410316
Flx_eval2BILspec 603303
Flx_eval_powers_pre 48426755
Flx_eval_pre 136176070
Flx_extgcd 857101
Flx_extgcd_basecase 6183728
Flx_extgcd_halfgcd 126068
Flx_extgcd_pre 6183785
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109545
Flx_gcd 35043469
Flx_gcd_basecase 85823374
Flx_gcd_pre 87488492
Flx_get_red 14508463
Flx_get_red_pre 98454641
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088149
Flx_halfgcd_all_pre 1088154
Flx_halfgcd_pre 873241
Flx_halfres_basecase 1095225
Flx_halfres_i 1115193
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160917
Flx_integ 0
Flx_integXn 423353
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134388
Flx_invBarrett_pre 158849
Flx_invLaplace 54660
Flx_is_l_pow 8163
Flx_is_smooth 74256
Flx_is_smooth_pre 118726
Flx_is_smooth_squarefree 126892
Flx_is_squarefree 9200914
Flx_lgrenormalizespec 2137952
Flx_matFrobenius 0
Flx_matFrobenius_pre 86559
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907125
Flx_mul 26719298
Flx_mul_pre 383440317
Flx_mulhigh_i 950297
Flx_mullimb 1186293334
Flx_mullimb_ok 3386955338
Flx_mulspec 389068081
Flx_mulspec_Kronecker 7372966
Flx_mulspec_basecase 349135239
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10144
Flx_mulspec_mulii_inflate 294050
Flx_mulspec_quartmulii 97165
Flx_neg 4176989
Flx_neg_inplace 1799550
Flx_negspec 4176985
Flx_normalize 64797580
Flx_powu 0
Flx_powu_pre 4004
Flx_recip 0
Flx_recipspec 7292661
Flx_red 1886174
Flx_rem 42220017
Flx_rem_basecase 802332145
Flx_rem_pre 928320195
Flx_renormalize 2172353516
Flx_rescale 1117
Flx_resultant 4739965
Flx_resultant_basecase_pre 14606394
Flx_resultant_pre 14608404
Flx_shift 27404778
Flx_shiftip 633361482
Flx_splitting 147947
Flx_sqr 370349
Flx_sqr_pre 275808599
Flx_sqrspec 275937445
Flx_sqrspec_Kronecker 670386
Flx_sqrspec_basecase 275191324
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136580191
Flx_subspec 900257
Flx_to_Flv 66654740
Flx_to_FlxX 71405
Flx_to_ZX 38379344
Flx_to_ZX_inplace 36547404
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204549
Flx_translate1 663322
Flx_translate1_basecase 675409
Flx_triple 551294
Flx_unscale 0
Flx_val 4458235
Flx_valrem 28467727
Flxn_div 56615
Flxn_div_pre 56633
Flxn_exp 0
Flxn_expint 109545
Flxn_inv 1037
Flxn_mul 75975
Flxn_mul_pre 5184551
Flxn_mulhigh 527737
Flxn_recip 218061
Flxn_red 6369165
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69414
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779626
Flxq_auttrace_pre 960352
Flxq_auttrace_sqr 652393
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519444
Flxq_inv 335792
Flxq_inv_pre 4183785
Flxq_invsafe 670334
Flxq_invsafe_pre 5326708
Flxq_is2npower 0
Flxq_issquare 404606
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 170651
Flxq_minpoly 45937
Flxq_minpoly_pre 809868
Flxq_mul 18079887
Flxq_mul_pre 194044821
Flxq_norm 443244
Flxq_order 97322
Flxq_pow 932838
Flxq_pow_Frobenius 23718583
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24766758
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232141
Flxq_powers_pre 22444122
Flxq_powu 488366
Flxq_powu_pre 24183022
Flxq_sqr 2763472
Flxq_sqr_pre 274808798
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21899
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212525
Flxq_transmul_init 1746449
RgXV_to_FlxV 7
RgX_to_Flx 2209607
Rg_to_F2 1715238
Rg_to_Fl 73086188
Rg_to_Flxq 3461450
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3799407
ZXV_to_FlxV 0
ZX_to_Flx 171057540
Z_mod2BIL_Flx 305864
Z_mod2BIL_Flx_2 308794
Z_mod2BIL_Flx_3 0
Z_to_Flx 7594175
ZpX_invLaplace_init 497
_Fl2_mul 1921828
_Fl2_pow 670736
_Fl2_rand 113726
_Fl2_sqr 4904704
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11781786
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149583954
_Flxq_neg 366572
_Flxq_one 22445046
_Flxq_pow 23711175
_Flxq_powu 68
_Flxq_powu_i 22929891
_Flxq_rand 6564
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268468686
bounded_order 394011
gener_Flxq 7201
get_Fl_threshold 2332132089
get_Flx_red 991284803
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507057
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21010047
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 5628020
kron_unpack_Flx_bits_wide 5698577
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8477902
mkF2 27658638
monomial_Flx 941330
random_Flx 2646401
set_Flxq 68922
set_Flxq_pre 70693677
translate_basecase 688581
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6378531

Generated by: LCOV version 1.16