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 30622-caa25a75db) Lines: 2553 2925 87.3 %
Date: 2026-01-22 09:18:00 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 136
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 1862
Flx_sqrspec_sqri 2068
FlxV_Flv_multieval 2137
FlxV_Flv_multieval_tree 2137
FlxM_to_ZXM 2463
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3620
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3913
Flxq_pow_table_pre 4392
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 5921
_Flxq_s 6466
Flx_FlxM_qmul 6921
FlxM_mul2 7093
gener_Flxq 7200
Flx_is_l_pow 8175
_Flxq_inv 9244
Flx_halfres_update_pre 9405
Flv_inv_pre 9645
Flx_mulspec_mulii 10135
Flx_sqrspec_quartsqri 10211
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12514
Flx_halve 14007
Flx_diff1 14327
Flx_translate1 16989
Flxq_sqrtn_spec_pre 19494
Flx_halfres_split 19957
Flxq_sqrtn 20664
Flxq_autpow_msqr 20696
FlxM_eval_powers_pre 22302
Flx_invBarrett_Newton 22573
ZM_unpack_FlxM 23040
Flx_Laplace 24724
Flx_composedsum 24917
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25988
FlxV_composedsum 28961
Flx_translate1_basecase 29070
FlxV_Flc_mul 29906
Flx_mod_Xn1 30255
Flxq_sqrtl_spec_pre 33063
Fl_Flxq_log 35325
Flxq_sumautsum_msqr 40915
translate_basecase 42242
kron_unpack_Flx 42785
Flxq_minpoly 45380
FlxM_pack_ZM 46073
Flxq_autpow_sqr 47332
Flx_Newton 48842
Flx_invLaplace 49143
Flxn_div 49983
Flxn_div_pre 49984
Flv_inv_indir 52203
kron_pack_Flx_spec 53168
ZM_unpack_FlxM_bits 58145
Flxq_autpow_pre 64872
Fl2_sqrt_pre 65849
Flx_to_FlxX 66612
_Flxq_equal0 66952
get_Flxq_field 68831
set_Flxq 68851
Flxn_mul 73212
Flx_is_smooth 74256
Fl2_sqrtn_pre 76101
Flx_Frobenius 76126
Flx_matFrobenius_pre 77246
FlxM_mul_Kronecker_i 81185
FlxqM_mul_Kronecker 81185
FlxqM_red_pre 81185
Flx_mulspec_quartmulii 91319
Flxq_order 97328
Flv_Flm_polint 98024
Flxq_autsum_pre 98812
int_to_Flx_quart 101530
FlxC_to_ZXC 103962
Flxq_autsum_sqr 105111
Flx_fromNewton 106766
Flxn_expint 106766
Flxq_autsum_mul 112345
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113932
FlxM_pack_ZM_bits 116209
Flx_is_smooth_pre 118511
Flx_is_smooth_squarefree 126677
Fl2_norm_pre 127585
Flx_invBarrett_basecase 132572
Flx_extgcd_halfgcd 145445
Flx_splitting 147326
Flx_Fl_sub 150125
Flxq_matrix_pow_pre 152138
FlxV_to_Flm 153196
Flv_invVandermonde 153445
Flx_invBarrett_pre 156437
Flx_inflate 160168
Flxq_log 160311
Flx_to_int_quartspec 192849
Fl2_inv_pre 197395
Flxn_recip 204446
Flxq_sumautsum_pre 210711
Flxq_powers 225408
Flxq_sqrt 230528
Flxq_sqrt_pre 230528
FlxqC_red_pre 231208
Flxq_div 237891
get_Flxq_star 277133
Flx_mulspec_mulii_inflate 293297
FlxT_red 294214
Flxq_sumautsum_sqr 295312
Z_mod2BIL_Flx 305111
Z_mod2BIL_Flx_2 308041
Flxq_inv 318434
FlxC_eval_powers_pre 325158
Flx_sqr 344661
_Flxq_neg 355613
_Flxq_add 378527
Flx_deflate 390117
bounded_order 394228
FlxV_to_FlxX 397524
Flxq_issquare 404492
Flx_addmulmul 413754
Flx_integXn 414726
Flxq_norm 443110
Fl2_equal1 450008
Flxq_powu 461170
Flx_to_int_halfspec 463495
Flxn_mulhigh 496036
Flx_blocks 496037
int_to_Flx_half 496426
Flxq_easylog 516790
Flx_divrem_Barrett 592269
FlxV_to_ZXV 597495
Flx_eval2BILspec 601797
Flxq_auttrace_sqr 622477
Flxq_invsafe 665234
kron_pack_Flx_spec_half 669679
_Fl2_pow 671864
Fl2_pow_pre 671882
Flx_sqrspec_Kronecker 694870
Flx_Flxq_eval 714687
Flxq_auttrace_mul 743692
Flx_extgcd 777149
Flxq_minpoly_pre 777844
Flx_halfgcd_pre 837327
Flv_roots_to_pol 841887
Flx_subspec 881881
Flx_divrem_Barrettspec 889496
monomial_Flx 899341
Flx_mulhigh_i 910706
Flxq_pow 910952
Flxq_auttrace_pre 917724
Flx_triple 1049261
Flx_halfgcd_all_i 1089281
Flx_halfgcd_all_pre 1089294
Flx_halfres_basecase 1096352
Flx_halfres_i 1116315
Flv_polint 1450280
_Flxq_rmul 1456602
_Flxq_red 1543098
Flxq_transmul_init 1674617
Flx_red 1694205
Flv_inv 1702986
Flv_producttree 1703923
Rg_to_F2 1710147
Flv_inv_i 1714988
Flx_Flv_multieval_tree 1738864
Flx_neg_inplace 1777875
_Fl2_mul 1923491
Fl2_mul_pre 1952515
Flx_lgrenormalizespec 2092668
RgX_to_Flx 2246743
Flx_Flxq_eval_pre 2312619
Flxq_div_pre 2414415
Flx_double 2443925
FlvV_polint_tree 2532833
random_Flx 2562062
Flxq_sqr 2763151
FlxV_to_ZXV_inplace 2927974
Flx_neg 3153673
Flx_negspec 3153678
Rg_to_Flxq 3458224
ZXT_to_FlxT 3536138
Flx_addshift 3724675
Flxq_transmul 4043681
Flxq_inv_pre 4250395
Flx_val 4463738
Flx_resultant 4590812
Fl2_sqr_pre 4903922
_Fl2_sqr 4903935
Flx_mod_Xnm1 4904692
Flxn_mul_pre 4976490
Flxq_invsafe_pre 5355687
kron_unpack_Flx_bits_wide 5522663
kron_unpack_Flx_bits_narrow 5625526
Flxn_red 6116176
Flx_extgcd_pre 6132803
Flx_extgcd_basecase 6132855
zx_to_Flx 6385946
Flx_recipspec 7025877
Flx_mulspec_Kronecker 7175771
Z_to_Flx 7218915
Flx_addspec 7250880
Flx_Fl_mul 7280648
mkF2 7316880
maxbitcoeffpol 8296772
Flx_is_squarefree 8944395
Flx_Fl_add 9682603
Flx_Fl_mul_to_monic 11449053
_Flx_mul 11770639
Flx_blocks_Flm 12361935
FlxV_to_Flm_lg 12362270
Flx_FlxqV_eval_pre 12560800
Flx_Frobenius_pre 13016687
Flxq_mul 13186901
Flx_get_red 13446298
Flx_resultant_basecase_pre 14248317
Flx_resultant_pre 14250863
Flx_Fl_mul_pre 18059731
Flx_eval 18574925
Flv_inv_pre_inplace 19227938
kron_pack_Flx_spec_bits 20636834
Flxq_powers_pre 20780232
_Flxq_one 20783801
Flv_inv_pre_indir 20913520
Fl_to_Flx 21236069
Flx_deriv 21885752
_Flxq_powu_i 21997116
_Flxq_pow 22403496
Flxq_pow_Frobenius 22410901
Flxq_powu_pre 23197948
Flxq_pow_pre 23422370
Flv_to_Flx 24197252
Flx_shift 26088557
Flx_mul 26802362
Flx_equal 26951661
Flx_valrem 28237249
Flx_divrem 28305582
Flx_gcd 34170806
Flx_to_ZX_inplace 34312788
Flx_to_ZX 36429481
Flx_div_by_X_x 36544473
Flx_rem 39589441
Flx_eval_powers_pre 48479931
Flx_divrem_basecase 59537523
Flx_normalize 63198615
Flx_to_Flv 63783005
Flx_add 64722535
set_Flxq_pre 66722763
Rg_to_Fl 73017502
Flx_divrem_pre 75643937
Flx_gcd_basecase 82062157
Flx_gcd_pre 83635444
Flx_get_red_pre 92907682
Flx_eval_pre 132265640
Flx_sub 134424687
_Flxq_mul 143620642
ZX_to_Flx 162367898
Flxq_mul_pre 183818604
_Flxq_sqr 260709449
Flxq_sqr_pre 268469053
Flx_sqr_pre 269413332
Flx_sqrspec_basecase 269685824
Flx_sqrspec 269715825
Flx_mulspec_basecase 339358505
Flx_mul_pre 370394141
Flx_mulspec 376054497
Flx_shiftip 617361526
Flx_rem_basecase 777709591
Flx_rem_pre 897682901
get_Flx_red 958973063
Flx_mullimb 1179985871
Flx_renormalize 2096375730
get_Fl_threshold 2263608521
Flx_mullimb_ok 3298013064

Generated by: LCOV version 1.16