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 30809-023acc7158) Lines: 2553 2925 87.3 %
Date: 2026-04-13 09:26:12 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449938
Fl2_inv_pre 197324
Fl2_mul_pre 17093686
Fl2_norm_pre 97118593
Fl2_pow_pre 671794
Fl2_sqr_pre 4913796
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76101
Fl_Flxq_log 35570
Fl_Xp1_powu 0
Fl_to_Flx 21931683
Flm_to_FlxV 2772
FlvV_polint_tree 2587706
Flv_Flm_polint 104561
Flv_inv 1744774
Flv_invVandermonde 153445
Flv_inv_i 1756788
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21014048
Flv_inv_pre_inplace 19290365
Flv_polint 1485497
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745976
Flv_roots_to_pol 842056
Flv_to_Flx 25490686
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 325155
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 296661
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28987
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171866
FlxV_to_Flm_lg 12970970
FlxV_to_FlxX 397987
FlxV_to_ZXV 609484
FlxV_to_ZXV_inplace 3032535
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846299
Flx_Fl_mul 9424059
Flx_Fl_mul_pre 20198568
Flx_Fl_mul_to_monic 11859805
Flx_Fl_sub 151686
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786289
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169689
Flx_Flxq_eval 791467
Flx_Flxq_eval_pre 2444874
Flx_Frobenius 86617
Flx_Frobenius_pre 13818131
Flx_Laplace 27501
Flx_Newton 54391
Flx_add 73801723
Flx_addmulmul 359020
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527628
Flx_blocks_Flm 12969800
Flx_composedprod 0
Flx_composedsum 27696
Flx_convol 0
Flx_deflate 421290
Flx_deriv 22891271
Flx_diff1 660621
Flx_digits 0
Flx_div_by_X_x 36571651
Flx_divrem 30451660
Flx_divrem_Barrett 605300
Flx_divrem_Barrettspec 906615
Flx_divrem_basecase 61240917
Flx_divrem_pre 78676405
Flx_double 1179459
Flx_equal 26021924
Flx_eval 20407165
Flx_eval2BILspec 603299
Flx_eval_powers_pre 48533751
Flx_eval_pre 136140681
Flx_extgcd 857839
Flx_extgcd_basecase 6184754
Flx_extgcd_halfgcd 126085
Flx_extgcd_pre 6184743
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109545
Flx_gcd 35038103
Flx_gcd_basecase 85784779
Flx_gcd_pre 87459666
Flx_get_red 14507235
Flx_get_red_pre 96989011
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088305
Flx_halfgcd_all_pre 1088308
Flx_halfgcd_pre 873269
Flx_halfres_basecase 1095384
Flx_halfres_i 1115349
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160239
Flx_integ 0
Flx_integXn 423373
Flx_invBarrett 0
Flx_invBarrett_Newton 23159
Flx_invBarrett_basecase 134413
Flx_invBarrett_pre 158871
Flx_invLaplace 54666
Flx_is_l_pow 8093
Flx_is_smooth 74256
Flx_is_smooth_pre 118206
Flx_is_smooth_squarefree 126258
Flx_is_squarefree 9207562
Flx_lgrenormalizespec 2135316
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31626
Flx_mod_Xnm1 4907949
Flx_mul 26723668
Flx_mul_pre 380332049
Flx_mulhigh_i 949892
Flx_mullimb 1185328186
Flx_mullimb_ok 3346893334
Flx_mulspec 385881494
Flx_mulspec_Kronecker 7369049
Flx_mulspec_basecase 346157825
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10146
Flx_mulspec_mulii_inflate 294048
Flx_mulspec_quartmulii 97166
Flx_neg 4176168
Flx_neg_inplace 1799550
Flx_negspec 4176151
Flx_normalize 64848480
Flx_powu 0
Flx_powu_pre 3954
Flx_recip 0
Flx_recipspec 7290011
Flx_red 1883597
Flx_rem 42213837
Flx_rem_basecase 796795459
Flx_rem_pre 922921975
Flx_renormalize 2162038620
Flx_rescale 1117
Flx_resultant 4609750
Flx_resultant_basecase_pre 14475860
Flx_resultant_pre 14478099
Flx_shift 27402809
Flx_shiftip 628974023
Flx_splitting 147610
Flx_sqr 370294
Flx_sqr_pre 273830156
Flx_sqrspec 274147954
Flx_sqrspec_Kronecker 670326
Flx_sqrspec_basecase 274351242
Flx_sqrspec_halfsqri 135
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2065
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136575794
Flx_subspec 899010
Flx_to_Flv 66649084
Flx_to_FlxX 71404
Flx_to_ZX 38384347
Flx_to_ZX_inplace 36547855
Flx_to_int_halfspec 468589
Flx_to_int_quartspec 204550
Flx_translate1 663283
Flx_translate1_basecase 675378
Flx_triple 551294
Flx_unscale 0
Flx_val 4469095
Flx_valrem 28490540
Flxn_div 56621
Flxn_div_pre 56640
Flxn_exp 0
Flxn_expint 109545
Flxn_inv 1037
Flxn_mul 75995
Flxn_mul_pre 5183310
Flxn_mulhigh 527551
Flxn_recip 218081
Flxn_red 6367025
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 69415
Flxq_autpow_sqr 47245
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112095
Flxq_autsum_pre 98574
Flxq_autsum_sqr 104892
Flxq_auttrace 0
Flxq_auttrace_mul 779393
Flxq_auttrace_pre 960107
Flxq_auttrace_sqr 652172
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519447
Flxq_inv 335792
Flxq_inv_pre 4183792
Flxq_invsafe 670522
Flxq_invsafe_pre 5326926
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 170650
Flxq_minpoly 45937
Flxq_minpoly_pre 809711
Flxq_mul 18080018
Flxq_mul_pre 191053655
Flxq_norm 443251
Flxq_order 97322
Flxq_pow 933147
Flxq_pow_Frobenius 22269113
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23317703
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232114
Flxq_powers_pre 22441536
Flxq_powu 488358
Flxq_powu_pre 24181626
Flxq_sqr 2763472
Flxq_sqr_pre 272882279
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212663
Flxq_transmul_init 1746515
RgXV_to_FlxV 7
RgX_to_Flx 2209615
Rg_to_F2 1715172
Rg_to_Fl 73085719
Rg_to_Flxq 3461481
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798698
ZXV_to_FlxV 0
ZX_to_Flx 171052169
Z_mod2BIL_Flx 305862
Z_mod2BIL_Flx_2 308792
Z_mod2BIL_Flx_3 0
Z_to_Flx 7594015
ZpX_invLaplace_init 497
_Fl2_mul 1925320
_Fl2_pow 671793
_Fl2_rand 113901
_Fl2_sqr 4913842
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11776725
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146619906
_Flxq_neg 366572
_Flxq_one 22439457
_Flxq_pow 22261701
_Flxq_powu 68
_Flxq_powu_i 22929107
_Flxq_rand 6568
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266622221
bounded_order 394017
gener_Flxq 7201
get_Fl_threshold 2313285139
get_Flx_red 985798070
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12217
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 21001886
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 5625435
kron_unpack_Flx_bits_wide 5695854
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8473722
mkF2 27671088
monomial_Flx 941405
random_Flx 2646272
set_Flxq 68922
set_Flxq_pre 69236990
translate_basecase 688550
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6400853

Generated by: LCOV version 1.16