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
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 135
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2065
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3954
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6568
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8093
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10146
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23159
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27501
Flx_composedsum 27696
FlxV_composedsum 28987
Flx_mod_Xn1 31626
FlxV_Flc_mul 34482
Fl_Flxq_log 35570
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47245
Flv_inv_indir 52216
kron_pack_Flx_spec 53168
Flx_Newton 54391
Flx_invLaplace 54666
Flxn_div 56621
Flxn_div_pre 56640
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69415
Flx_to_FlxX 71404
Flx_is_smooth 74256
Flxn_mul 75995
Fl2_sqrtn_pre 76101
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86557
Flx_Frobenius 86617
Flx_mulspec_quartmulii 97166
Flxq_order 97322
Flxq_autsum_pre 98574
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 104892
int_to_Flx_quart 107384
Flx_fromNewton 109545
Flxn_expint 109545
Flxq_autsum_mul 112095
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113901
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118206
Flx_extgcd_halfgcd 126085
Flx_is_smooth_squarefree 126258
Flx_invBarrett_basecase 134413
Flx_splitting 147610
Flx_Fl_sub 151686
Flv_invVandermonde 153445
Flx_invBarrett_pre 158871
Flx_inflate 160239
Flxq_log 164210
Flxq_matrix_pow_pre 170650
FlxV_to_Flm 171866
Fl2_inv_pre 197324
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210695
Flxn_recip 218081
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232114
FlxqC_red_pre 234855
get_Flxq_star 283433
Flx_mulspec_mulii_inflate 294048
Flxq_sumautsum_sqr 295218
FlxT_red 296661
Z_mod2BIL_Flx 305862
Z_mod2BIL_Flx_2 308792
FlxC_eval_powers_pre 325155
Flxq_inv 335792
Flx_addmulmul 359020
_Flxq_neg 366572
Flx_sqr 370294
_Flxq_add 389834
bounded_order 394017
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421290
Flx_integXn 423373
Flxq_norm 443251
Fl2_equal1 449938
Flx_to_int_halfspec 468589
Flxq_powu 488358
int_to_Flx_half 507058
Flxq_easylog 519447
Flxn_mulhigh 527551
Flx_blocks 527628
Flx_triple 551294
Flx_eval2BILspec 603299
Flx_divrem_Barrett 605300
FlxV_to_ZXV 609484
Flxq_auttrace_sqr 652172
Flx_diff1 660621
Flx_translate1 663283
Flx_sqrspec_Kronecker 670326
Flxq_invsafe 670522
_Fl2_pow 671793
Fl2_pow_pre 671794
Flx_translate1_basecase 675378
kron_pack_Flx_spec_half 688104
translate_basecase 688550
Flxq_auttrace_mul 779393
Flx_Flxq_eval 791467
Flxq_minpoly_pre 809711
Flv_roots_to_pol 842056
Flx_extgcd 857839
Flx_halfgcd_pre 873269
Flx_subspec 899010
Flx_divrem_Barrettspec 906615
Flxq_pow 933147
monomial_Flx 941405
Flx_mulhigh_i 949892
Flxq_auttrace_pre 960107
Flx_halfgcd_all_i 1088305
Flx_halfgcd_all_pre 1088308
Flx_halfres_basecase 1095384
Flx_halfres_i 1115349
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485497
_Flxq_red 1550928
Rg_to_F2 1715172
Flv_inv 1744774
Flv_producttree 1745976
Flxq_transmul_init 1746515
Flv_inv_i 1756788
Flx_Flv_multieval_tree 1786289
Flx_neg_inplace 1799550
Flx_red 1883597
_Fl2_mul 1925320
Flx_lgrenormalizespec 2135316
RgX_to_Flx 2209615
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444874
FlvV_polint_tree 2587706
random_Flx 2646272
Flxq_sqr 2763472
FlxV_to_ZXV_inplace 3032535
Rg_to_Flxq 3461481
Flx_addshift 3768149
ZXT_to_FlxT 3798698
Flx_negspec 4176151
Flx_neg 4176168
Flxq_inv_pre 4183792
Flxq_transmul 4212663
Flx_val 4469095
Flx_resultant 4609750
Flx_mod_Xnm1 4907949
Fl2_sqr_pre 4913796
_Fl2_sqr 4913842
Flxn_mul_pre 5183310
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326926
kron_unpack_Flx_bits_narrow 5625435
kron_unpack_Flx_bits_wide 5695854
Flx_extgcd_pre 6184743
Flx_extgcd_basecase 6184754
Flxn_red 6367025
zx_to_Flx 6400853
Flx_recipspec 7290011
Flx_addspec 7337710
Flx_mulspec_Kronecker 7369049
Z_to_Flx 7594015
maxbitcoeffpol 8473722
Flx_is_squarefree 9207562
Flx_Fl_mul 9424059
Flx_Fl_add 9846299
_Flx_mul 11776725
Flx_Fl_mul_to_monic 11859805
Flx_blocks_Flm 12969800
FlxV_to_Flm_lg 12970970
Flx_FlxqV_eval_pre 13169689
Flx_Frobenius_pre 13818131
Flx_resultant_basecase_pre 14475860
Flx_resultant_pre 14478099
Flx_get_red 14507235
Fl2_mul_pre 17093686
Flxq_mul 18080018
Flv_inv_pre_inplace 19290365
Flx_Fl_mul_pre 20198568
Flx_eval 20407165
kron_pack_Flx_spec_bits 21001886
Flv_inv_pre_indir 21014048
Fl_to_Flx 21931683
_Flxq_pow 22261701
Flxq_pow_Frobenius 22269113
_Flxq_one 22439457
Flxq_powers_pre 22441536
Flx_deriv 22891271
_Flxq_powu_i 22929107
Flxq_pow_pre 23317703
Flxq_powu_pre 24181626
Flv_to_Flx 25490686
Flx_equal 26021924
Flx_mul 26723668
Flx_shift 27402809
mkF2 27671088
Flx_valrem 28490540
Flx_divrem 30451660
Flx_gcd 35038103
Flx_to_ZX_inplace 36547855
Flx_div_by_X_x 36571651
Flx_to_ZX 38384347
Flx_rem 42213837
Flx_eval_powers_pre 48533751
Flx_divrem_basecase 61240917
Flx_normalize 64848480
Flx_to_Flv 66649084
set_Flxq_pre 69236990
Rg_to_Fl 73085719
Flx_add 73801723
Flx_divrem_pre 78676405
Flx_gcd_basecase 85784779
Flx_gcd_pre 87459666
Flx_get_red_pre 96989011
Fl2_norm_pre 97118593
Flx_eval_pre 136140681
Flx_sub 136575794
_Flxq_mul 146619906
ZX_to_Flx 171052169
Flxq_mul_pre 191053655
_Flxq_sqr 266622221
Flxq_sqr_pre 272882279
Flx_sqr_pre 273830156
Flx_sqrspec 274147954
Flx_sqrspec_basecase 274351242
Flx_mulspec_basecase 346157825
Flx_mul_pre 380332049
Flx_mulspec 385881494
Flx_shiftip 628974023
Flx_rem_basecase 796795459
Flx_rem_pre 922921975
get_Flx_red 985798070
Flx_mullimb 1185328186
Flx_renormalize 2162038620
get_Fl_threshold 2313285139
Flx_mullimb_ok 3346893334

Generated by: LCOV version 1.16