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 30802-b11b770002) Lines: 2553 2925 87.3 %
Date: 2026-04-11 09:26:21 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449777
Fl2_inv_pre 197166
Fl2_mul_pre 17093270
Fl2_norm_pre 97118628
Fl2_pow_pre 671506
Fl2_sqr_pre 4912328
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76078
Fl_Flxq_log 35573
Fl_Xp1_powu 0
Fl_to_Flx 21946442
Flm_to_FlxV 2772
FlvV_polint_tree 2587551
Flv_Flm_polint 104559
Flv_inv 1744726
Flv_invVandermonde 153445
Flv_inv_i 1756739
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21059473
Flv_inv_pre_inplace 19318667
Flv_polint 1485444
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745926
Flv_roots_to_pol 842073
Flv_to_Flx 25490707
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 325158
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 297711
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28989
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171866
FlxV_to_Flm_lg 12970890
FlxV_to_FlxX 397987
FlxV_to_ZXV 609509
FlxV_to_ZXV_inplace 3032525
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9845306
Flx_Fl_mul 9423988
Flx_Fl_mul_pre 20197869
Flx_Fl_mul_to_monic 11859204
Flx_Fl_sub 151692
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786237
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169777
Flx_Flxq_eval 791497
Flx_Flxq_eval_pre 2444868
Flx_Frobenius 86619
Flx_Frobenius_pre 13817226
Flx_Laplace 27476
Flx_Newton 54375
Flx_add 73800839
Flx_addmulmul 358989
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527654
Flx_blocks_Flm 12970169
Flx_composedprod 0
Flx_composedsum 27687
Flx_convol 0
Flx_deflate 421308
Flx_deriv 23013683
Flx_diff1 660602
Flx_digits 0
Flx_div_by_X_x 36566130
Flx_divrem 30450138
Flx_divrem_Barrett 605553
Flx_divrem_Barrettspec 907231
Flx_divrem_basecase 61235405
Flx_divrem_pre 78674837
Flx_double 1179459
Flx_equal 26258732
Flx_eval 20417727
Flx_eval2BILspec 603315
Flx_eval_powers_pre 48589113
Flx_eval_pre 136169944
Flx_extgcd 857085
Flx_extgcd_basecase 6183723
Flx_extgcd_halfgcd 126069
Flx_extgcd_pre 6183729
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109537
Flx_gcd 35021095
Flx_gcd_basecase 85790835
Flx_gcd_pre 87457472
Flx_get_red 14508098
Flx_get_red_pre 97217375
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087746
Flx_halfgcd_all_pre 1087746
Flx_halfgcd_pre 873128
Flx_halfres_basecase 1094823
Flx_halfres_i 1114790
Flx_halfres_pre 1044
Flx_halfres_split 19962
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160673
Flx_integ 0
Flx_integXn 423296
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134387
Flx_invBarrett_pre 158849
Flx_invLaplace 54606
Flx_is_l_pow 8153
Flx_is_smooth 74256
Flx_is_smooth_pre 118378
Flx_is_smooth_squarefree 126546
Flx_is_squarefree 9200633
Flx_lgrenormalizespec 2136351
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31528
Flx_mod_Xnm1 4908094
Flx_mul 26712427
Flx_mul_pre 380942939
Flx_mulhigh_i 949834
Flx_mullimb 1185557964
Flx_mullimb_ok 3349821029
Flx_mulspec 386558332
Flx_mulspec_Kronecker 7370696
Flx_mulspec_basecase 346597429
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10125
Flx_mulspec_mulii_inflate 294056
Flx_mulspec_quartmulii 97165
Flx_neg 4176365
Flx_neg_inplace 1799550
Flx_negspec 4176360
Flx_normalize 64815933
Flx_powu 0
Flx_powu_pre 3969
Flx_recip 0
Flx_recipspec 7290623
Flx_red 1884484
Flx_rem 42218796
Flx_rem_basecase 798468708
Flx_rem_pre 924496239
Flx_renormalize 2163619570
Flx_rescale 1117
Flx_resultant 4739713
Flx_resultant_basecase_pre 14605847
Flx_resultant_pre 14607875
Flx_shift 27401854
Flx_shiftip 629759981
Flx_splitting 147722
Flx_sqr 370315
Flx_sqr_pre 274786042
Flx_sqrspec 274936108
Flx_sqrspec_Kronecker 670340
Flx_sqrspec_basecase 274169262
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2066
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136563816
Flx_subspec 899627
Flx_to_Flv 66648708
Flx_to_FlxX 71405
Flx_to_ZX 38377219
Flx_to_ZX_inplace 36544065
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204549
Flx_translate1 663274
Flx_translate1_basecase 675345
Flx_triple 551294
Flx_unscale 0
Flx_val 4474341
Flx_valrem 28464116
Flxn_div 56576
Flxn_div_pre 56601
Flxn_exp 0
Flxn_expint 109533
Flxn_inv 1037
Flxn_mul 75964
Flxn_mul_pre 5183361
Flxn_mulhigh 527434
Flxn_recip 217989
Flxn_red 6366587
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 47244
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112088
Flxq_autsum_pre 98573
Flxq_autsum_sqr 104887
Flxq_auttrace 0
Flxq_auttrace_mul 779480
Flxq_auttrace_pre 960155
Flxq_auttrace_sqr 652273
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519469
Flxq_inv 335793
Flxq_inv_pre 4183820
Flxq_invsafe 670230
Flxq_invsafe_pre 5326638
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 170646
Flxq_minpoly 45937
Flxq_minpoly_pre 809713
Flxq_mul 18079847
Flxq_mul_pre 191614353
Flxq_norm 443257
Flxq_order 97322
Flxq_pow 932891
Flxq_pow_Frobenius 22494149
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23542536
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232142
Flxq_powers_pre 22442713
Flxq_powu 488356
Flxq_powu_pre 24182216
Flxq_sqr 2763477
Flxq_sqr_pre 273781628
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212067
Flxq_transmul_init 1746234
RgXV_to_FlxV 7
RgX_to_Flx 2209618
Rg_to_F2 1715191
Rg_to_Fl 73085986
Rg_to_Flxq 3461393
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798799
ZXV_to_FlxV 0
ZX_to_Flx 171038805
Z_mod2BIL_Flx 305870
Z_mod2BIL_Flx_2 308800
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593872
ZpX_invLaplace_init 497
_Fl2_mul 1924899
_Fl2_pow 671488
_Fl2_rand 113972
_Fl2_sqr 4912373
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11773114
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147147740
_Flxq_neg 366572
_Flxq_one 22442040
_Flxq_pow 22486737
_Flxq_powu 68
_Flxq_powu_i 22928940
_Flxq_rand 6567
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267435351
bounded_order 394018
gener_Flxq 7201
get_Fl_threshold 2319082161
get_Flx_red 987471004
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12212
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 21005258
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 5626325
kron_unpack_Flx_bits_wide 5698582
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8476245
mkF2 27669594
monomial_Flx 941211
random_Flx 2646180
set_Flxq 68922
set_Flxq_pre 69466130
translate_basecase 688515
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6402288

Generated by: LCOV version 1.16