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 30842-de08e65e1b) Lines: 2553 2925 87.3 %
Date: 2026-04-29 09:26:11 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450585
Fl2_inv_pre 197636
Fl2_mul_pre 17093407
Fl2_norm_pre 97118569
Fl2_pow_pre 672700
Fl2_sqr_pre 4909377
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76099
Fl_Flxq_log 35578
Fl_Xp1_powu 0
Fl_to_Flx 21932816
Flm_to_FlxV 2772
FlvV_polint_tree 2587400
Flv_Flm_polint 104555
Flv_inv 1744733
Flv_invVandermonde 153445
Flv_inv_i 1756746
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9643
Flv_inv_pre_indir 20992962
Flv_inv_pre_inplace 19249762
Flv_polint 1485451
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745940
Flv_roots_to_pol 841854
Flv_to_Flx 25496115
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 325148
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26381
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7279
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 297694
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28996
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171860
FlxV_to_Flm_lg 12973623
FlxV_to_FlxX 397987
FlxV_to_ZXV 610624
FlxV_to_ZXV_inplace 3032499
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9843101
Flx_Fl_mul 9425012
Flx_Fl_mul_pre 20217859
Flx_Fl_mul_to_monic 11863092
Flx_Fl_sub 151833
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786238
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13172315
Flx_Flxq_eval 791489
Flx_Flxq_eval_pre 2444992
Flx_Frobenius 86619
Flx_Frobenius_pre 13827227
Flx_Laplace 27475
Flx_Newton 54387
Flx_add 73770463
Flx_addmulmul 360110
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527607
Flx_blocks_Flm 12972391
Flx_composedprod 0
Flx_composedsum 27695
Flx_convol 0
Flx_deflate 421316
Flx_deriv 22905329
Flx_diff1 660254
Flx_digits 0
Flx_div_by_X_x 36540165
Flx_divrem 30470260
Flx_divrem_Barrett 610835
Flx_divrem_Barrettspec 912950
Flx_divrem_basecase 61302047
Flx_divrem_pre 78740902
Flx_double 1179459
Flx_equal 27459684
Flx_eval 20424788
Flx_eval2BILspec 603331
Flx_eval_powers_pre 48520166
Flx_eval_pre 136173662
Flx_extgcd 859512
Flx_extgcd_basecase 6193940
Flx_extgcd_halfgcd 126128
Flx_extgcd_pre 6193903
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109546
Flx_gcd 35033350
Flx_gcd_basecase 85818286
Flx_gcd_pre 87487247
Flx_get_red 14515516
Flx_get_red_pre 98449605
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088288
Flx_halfgcd_all_pre 1088291
Flx_halfgcd_pre 873343
Flx_halfres_basecase 1095547
Flx_halfres_i 1115716
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161500
Flx_integ 0
Flx_integXn 423352
Flx_invBarrett 0
Flx_invBarrett_Newton 23252
Flx_invBarrett_basecase 134452
Flx_invBarrett_pre 159004
Flx_invLaplace 54659
Flx_is_l_pow 8205
Flx_is_smooth 74256
Flx_is_smooth_pre 119250
Flx_is_smooth_squarefree 127453
Flx_is_squarefree 9221217
Flx_lgrenormalizespec 2150371
Flx_matFrobenius 0
Flx_matFrobenius_pre 86551
Flx_mod_Xn1 31630
Flx_mod_Xnm1 4907734
Flx_mul 26764849
Flx_mul_pre 383385613
Flx_mulhigh_i 949663
Flx_mullimb 1183295335
Flx_mullimb_ok 3396792267
Flx_mulspec 389016166
Flx_mulspec_Kronecker 7385083
Flx_mulspec_basecase 349016380
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10129
Flx_mulspec_mulii_inflate 294064
Flx_mulspec_quartmulii 98881
Flx_neg 4176470
Flx_neg_inplace 1799912
Flx_negspec 4176470
Flx_normalize 64811242
Flx_powu 0
Flx_powu_pre 3972
Flx_recip 0
Flx_recipspec 7303300
Flx_red 1884451
Flx_rem 42228506
Flx_rem_basecase 800823400
Flx_rem_pre 927271055
Flx_renormalize 2169748649
Flx_rescale 1117
Flx_resultant 4609322
Flx_resultant_basecase_pre 14474725
Flx_resultant_pre 14476920
Flx_shift 27406256
Flx_shiftip 633152303
Flx_splitting 147721
Flx_sqr 370309
Flx_sqr_pre 275705354
Flx_sqrspec 275850747
Flx_sqrspec_Kronecker 672074
Flx_sqrspec_basecase 275155750
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136766345
Flx_subspec 905222
Flx_to_Flv 66667897
Flx_to_FlxX 71405
Flx_to_ZX 38408135
Flx_to_ZX_inplace 36585571
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207980
Flx_translate1 662930
Flx_translate1_basecase 674986
Flx_triple 551294
Flx_unscale 0
Flx_val 4465281
Flx_valrem 28446207
Flxn_div 56583
Flxn_div_pre 56611
Flxn_exp 0
Flxn_expint 109541
Flxn_inv 1037
Flxn_mul 75977
Flxn_mul_pre 5183216
Flxn_mulhigh 527495
Flxn_recip 217993
Flxn_red 6367074
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 69429
Flxq_autpow_sqr 47284
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112115
Flxq_autsum_pre 98579
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779825
Flxq_auttrace_pre 960663
Flxq_auttrace_sqr 652609
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519454
Flxq_inv 335792
Flxq_inv_pre 4183810
Flxq_invsafe 670432
Flxq_invsafe_pre 5334436
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170641
Flxq_minpoly 45944
Flxq_minpoly_pre 809837
Flxq_mul 18079985
Flxq_mul_pre 194004682
Flxq_norm 443258
Flxq_order 97322
Flxq_pow 933318
Flxq_pow_Frobenius 23690931
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24739605
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232138
Flxq_powers_pre 22456860
Flxq_powu 488492
Flxq_powu_pre 24197514
Flxq_sqr 2763484
Flxq_sqr_pre 274707918
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23108
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213048
Flxq_transmul_init 1746647
RgXV_to_FlxV 7
RgX_to_Flx 2210284
Rg_to_F2 1715194
Rg_to_Fl 73090413
Rg_to_Flxq 3465685
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3799297
ZXV_to_FlxV 0
ZX_to_Flx 171157455
Z_mod2BIL_Flx 305878
Z_mod2BIL_Flx_2 308808
Z_mod2BIL_Flx_3 0
Z_to_Flx 7609832
ZpX_invLaplace_init 504
_Fl2_mul 1925038
_Fl2_pow 672670
_Fl2_rand 113905
_Fl2_sqr 4909408
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11759017
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149477833
_Flxq_neg 366572
_Flxq_one 22455278
_Flxq_pow 23683523
_Flxq_powu 68
_Flxq_powu_i 22943795
_Flxq_rand 6567
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268387037
bounded_order 394025
gener_Flxq 7201
get_Fl_threshold 2328996838
get_Flx_red 990286580
get_Flxq_field 68902
get_Flxq_star 283454
init_invlaplace 12521
int_to_Flx 12211
int_to_Flx_half 507058
int_to_Flx_quart 109101
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21035901
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 5644622
kron_unpack_Flx_bits_wide 5695939
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8493840
mkF2 27668667
monomial_Flx 941472
random_Flx 2646825
set_Flxq 68922
set_Flxq_pre 70691005
translate_basecase 688170
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6392027

Generated by: LCOV version 1.16