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 30640-c2c58e18c5) Lines: 2553 2925 87.3 %
Date: 2026-01-27 08:51:18 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450111
Fl2_inv_pre 197393
Fl2_mul_pre 1954939
Fl2_norm_pre 127619
Fl2_pow_pre 672021
Fl2_sqr_pre 4914268
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76120
Fl_Flxq_log 34188
Fl_Xp1_powu 0
Fl_to_Flx 21385308
Flm_to_FlxV 2772
FlvV_polint_tree 2486330
Flv_Flm_polint 103260
Flv_inv 1646087
Flv_invVandermonde 153445
Flv_inv_i 1658094
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 20941276
Flv_inv_pre_inplace 19309022
Flv_polint 1388109
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1647277
Flv_roots_to_pol 841996
Flv_to_Flx 20583516
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 325151
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 103478
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 79470
FlxM_neg 0
FlxM_pack_ZM 42613
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2353
FlxT_red 300292
FlxV_Flc_mul 34266
FlxV_Flv_multieval 2447
FlxV_Flv_multieval_tree 2447
FlxV_Flx_fromdigits 0
FlxV_composedsum 28973
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 64264
FlxV_to_Flm_lg 10661166
FlxV_to_FlxX 396885
FlxV_to_ZXV 560828
FlxV_to_ZXV_inplace 2631554
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9331761
Flx_Fl_mul 7277494
Flx_Fl_mul_pre 17402886
Flx_Fl_mul_to_monic 11061597
Flx_Fl_sub 145179
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1687276
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 10859967
Flx_Flxq_eval 651618
Flx_Flxq_eval_pre 2117692
Flx_Frobenius 85958
Flx_Frobenius_pre 12125634
Flx_Laplace 23543
Flx_Newton 46483
Flx_add 63098609
Flx_addmulmul 414311
Flx_addshift 3550161
Flx_addspec 6931665
Flx_blocks 456820
Flx_blocks_Flm 10660747
Flx_composedprod 0
Flx_composedsum 23740
Flx_convol 0
Flx_deflate 352715
Flx_deriv 20833956
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36559693
Flx_divrem 22567242
Flx_divrem_Barrett 571332
Flx_divrem_Barrettspec 865064
Flx_divrem_basecase 55085563
Flx_divrem_pre 66045069
Flx_double 2443925
Flx_equal 27030494
Flx_eval 20330870
Flx_eval2BILspec 600833
Flx_eval_powers_pre 48451978
Flx_eval_pre 133293363
Flx_extgcd 616682
Flx_extgcd_basecase 5698576
Flx_extgcd_halfgcd 145415
Flx_extgcd_pre 5698554
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 105595
Flx_gcd 33185821
Flx_gcd_basecase 76420635
Flx_gcd_pre 77974966
Flx_get_red 12187565
Flx_get_red_pre 86601121
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 989556
Flx_halfgcd_all_pre 989560
Flx_halfgcd_pre 737005
Flx_halfres_basecase 996630
Flx_halfres_i 1016600
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 13990
Flx_inflate 160876
Flx_integ 0
Flx_integXn 398443
Flx_invBarrett 0
Flx_invBarrett_Newton 23059
Flx_invBarrett_basecase 130311
Flx_invBarrett_pre 154649
Flx_invLaplace 46750
Flx_is_l_pow 8136
Flx_is_smooth 74256
Flx_is_smooth_pre 118087
Flx_is_smooth_squarefree 126283
Flx_is_squarefree 8196617
Flx_lgrenormalizespec 2050855
Flx_matFrobenius 0
Flx_matFrobenius_pre 32524
Flx_mod_Xn1 29020
Flx_mod_Xnm1 4901804
Flx_mul 25431631
Flx_mul_pre 358598494
Flx_mulhigh_i 854288
Flx_mullimb 1177926824
Flx_mullimb_ok 3177437919
Flx_mulspec 363882764
Flx_mulspec_Kronecker 7063899
Flx_mulspec_basecase 328075988
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10135
Flx_mulspec_mulii_inflate 292815
Flx_mulspec_quartmulii 64296
Flx_neg 2644650
Flx_neg_inplace 1705136
Flx_negspec 2644650
Flx_normalize 60956822
Flx_powu 0
Flx_powu_pre 4011
Flx_recip 0
Flx_recipspec 6369939
Flx_red 1739420
Flx_rem 39924100
Flx_rem_basecase 751899040
Flx_rem_pre 864261207
Flx_renormalize 2006617583
Flx_rescale 1117
Flx_resultant 4567383
Flx_resultant_basecase_pre 13935200
Flx_resultant_pre 13937378
Flx_shift 23936469
Flx_shiftip 599511108
Flx_splitting 148010
Flx_sqr 296968
Flx_sqr_pre 263605790
Flx_sqrspec 263694130
Flx_sqrspec_Kronecker 675213
Flx_sqrspec_basecase 262955379
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 8850
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 125078077
Flx_subspec 857309
Flx_to_Flv 57198262
Flx_to_FlxX 60750
Flx_to_ZX 32380235
Flx_to_ZX_inplace 28283466
Flx_to_int_halfspec 451520
Flx_to_int_quartspec 137441
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4459409
Flx_valrem 28299618
Flxn_div 48731
Flxn_div_pre 48745
Flxn_exp 0
Flxn_expint 105595
Flxn_inv 1037
Flxn_mul 72025
Flxn_mul_pre 4513230
Flxn_mulhigh 456728
Flxn_recip 198258
Flxn_red 5588871
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 214549
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 79470
FlxqM_red_pre 79470
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1596
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 41875
Flxq_autpow_sqr 47314
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112473
Flxq_autsum_pre 98769
Flxq_autsum_sqr 105111
Flxq_auttrace 0
Flxq_auttrace_mul 634147
Flxq_auttrace_pre 814545
Flxq_auttrace_sqr 533316
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2402413
Flxq_easylog 505311
Flxq_inv 235706
Flxq_inv_pre 4088273
Flxq_invsafe 656205
Flxq_invsafe_pre 5081890
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 142572
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 63051
Flxq_minpoly 44740
Flxq_minpoly_pre 690383
Flxq_mul 13186841
Flxq_mul_pre 178356595
Flxq_norm 443141
Flxq_order 97328
Flxq_pow 789997
Flxq_pow_Frobenius 22571640
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23388638
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 196212
Flxq_powers_pre 18773036
Flxq_powu 466682
Flxq_powu_pre 21923615
Flxq_sqr 2763155
Flxq_sqr_pre 262769782
Flxq_sqrt 230511
Flxq_sqrt_pre 230511
Flxq_sqrtl_spec_pre 10091
Flxq_sqrtn 8662
Flxq_sqrtn_spec_pre 7537
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 3559341
Flxq_transmul_init 1473991
RgXV_to_FlxV 7
RgX_to_Flx 2243746
Rg_to_F2 1710279
Rg_to_Fl 72939868
Rg_to_Flxq 3338583
ZM_unpack_FlxM 21310
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 2664374
ZXV_to_FlxV 0
ZX_to_Flx 140832158
Z_mod2BIL_Flx 304629
Z_mod2BIL_Flx_2 307559
Z_mod2BIL_Flx_3 0
Z_to_Flx 6274096
ZpX_invLaplace_init 497
_Fl2_mul 1925895
_Fl2_pow 672005
_Fl2_rand 113960
_Fl2_sqr 4914221
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11776693
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 321992
_Flxq_equal0 56017
_Flxq_inv 8164
_Flxq_mul 140725132
_Flxq_neg 300818
_Flxq_one 18771841
_Flxq_pow 22564228
_Flxq_powu 68
_Flxq_powu_i 20766465
_Flxq_rand 2701
_Flxq_red 1504439
_Flxq_rmul 1430913
_Flxq_s 5961
_Flxq_sqr 254970026
bounded_order 389346
gener_Flxq 7201
get_Fl_threshold 2183528472
get_Flx_red 920838675
get_Flxq_field 68506
get_Flxq_star 247437
init_invlaplace 12514
int_to_Flx 12214
int_to_Flx_half 460303
int_to_Flx_quart 73146
kron_pack_Flx_spec 53156
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20396184
kron_pack_Flx_spec_half 594934
kron_unpack_Flx 42808
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5488699
kron_unpack_Flx_bits_wide 5532719
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8137450
mkF2 7329856
monomial_Flx 773769
random_Flx 2329416
set_Flxq 68526
set_Flxq_pre 63353486
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6386547

Generated by: LCOV version 1.16