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 30754-316d984fc8) Lines: 2553 2925 87.3 %
Date: 2026-03-19 09:26:57 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449829
Fl2_inv_pre 197302
Fl2_mul_pre 17093315
Fl2_norm_pre 97118568
Fl2_pow_pre 671611
Fl2_sqr_pre 4913390
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76074
Fl_Flxq_log 35571
Fl_Xp1_powu 0
Fl_to_Flx 21965647
Flm_to_FlxV 2772
FlvV_polint_tree 2587809
Flv_Flm_polint 104562
Flv_inv 1744727
Flv_invVandermonde 153445
Flv_inv_i 1756740
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9646
Flv_inv_pre_indir 21149910
Flv_inv_pre_inplace 19411300
Flv_polint 1485436
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745932
Flv_roots_to_pol 842193
Flv_to_Flx 25493413
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 325148
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 296755
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28980
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171862
FlxV_to_Flm_lg 12972228
FlxV_to_FlxX 397987
FlxV_to_ZXV 609505
FlxV_to_ZXV_inplace 3032596
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844882
Flx_Fl_mul 7328003
Flx_Fl_mul_pre 18101359
Flx_Fl_mul_to_monic 11859707
Flx_Fl_sub 151689
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786229
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13171150
Flx_Flxq_eval 791484
Flx_Flxq_eval_pre 2444917
Flx_Frobenius 86619
Flx_Frobenius_pre 13820335
Flx_Laplace 27500
Flx_Newton 54388
Flx_add 66016305
Flx_addmulmul 358979
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527996
Flx_blocks_Flm 12971995
Flx_composedprod 0
Flx_composedsum 27701
Flx_convol 0
Flx_deflate 421324
Flx_deriv 23017369
Flx_diff1 660504
Flx_digits 0
Flx_div_by_X_x 36589220
Flx_divrem 30452587
Flx_divrem_Barrett 605281
Flx_divrem_Barrettspec 906874
Flx_divrem_basecase 61241870
Flx_divrem_pre 78687839
Flx_double 2299328
Flx_equal 26808893
Flx_eval 20444258
Flx_eval2BILspec 603301
Flx_eval_powers_pre 48537425
Flx_eval_pre 136197039
Flx_extgcd 857092
Flx_extgcd_basecase 6182799
Flx_extgcd_halfgcd 126064
Flx_extgcd_pre 6182771
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109546
Flx_gcd 35042401
Flx_gcd_basecase 85844945
Flx_gcd_pre 87507586
Flx_get_red 14511184
Flx_get_red_pre 97024977
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088010
Flx_halfgcd_all_pre 1088015
Flx_halfgcd_pre 873277
Flx_halfres_basecase 1095090
Flx_halfres_i 1115056
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160854
Flx_integ 0
Flx_integXn 423395
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134385
Flx_invBarrett_pre 158846
Flx_invLaplace 54664
Flx_is_l_pow 8203
Flx_is_smooth 74256
Flx_is_smooth_pre 118816
Flx_is_smooth_squarefree 127042
Flx_is_squarefree 9200752
Flx_lgrenormalizespec 2135880
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31527
Flx_mod_Xnm1 4907100
Flx_mul 26714780
Flx_mul_pre 377303421
Flx_mulhigh_i 950761
Flx_mullimb 1186221500
Flx_mullimb_ok 3355681658
Flx_mulspec 382882429
Flx_mulspec_Kronecker 7336547
Flx_mulspec_basecase 345226552
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10136
Flx_mulspec_mulii_inflate 294049
Flx_mulspec_quartmulii 97179
Flx_neg 3265211
Flx_neg_inplace 1767867
Flx_negspec 3265217
Flx_normalize 64848818
Flx_powu 0
Flx_powu_pre 3953
Flx_recip 0
Flx_recipspec 7291284
Flx_red 1883689
Flx_rem 42231753
Flx_rem_basecase 798936369
Flx_rem_pre 922937223
Flx_renormalize 2143844621
Flx_rescale 1117
Flx_resultant 4740066
Flx_resultant_basecase_pre 14605450
Flx_resultant_pre 14607552
Flx_shift 27407748
Flx_shiftip 630032612
Flx_splitting 147608
Flx_sqr 370293
Flx_sqr_pre 276200576
Flx_sqrspec 276312245
Flx_sqrspec_Kronecker 677003
Flx_sqrspec_basecase 275492466
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 137105879
Flx_subspec 899267
Flx_to_Flv 66657563
Flx_to_FlxX 71405
Flx_to_ZX 38314456
Flx_to_ZX_inplace 36552076
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204576
Flx_translate1 663172
Flx_translate1_basecase 675250
Flx_triple 984021
Flx_unscale 0
Flx_val 4464851
Flx_valrem 28508583
Flxn_div 56647
Flxn_div_pre 56654
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75991
Flxn_mul_pre 5186434
Flxn_mulhigh 527963
Flxn_recip 218167
Flxn_red 6372190
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 69420
Flxq_autpow_sqr 47248
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112095
Flxq_autsum_pre 98574
Flxq_autsum_sqr 104892
Flxq_auttrace 0
Flxq_auttrace_mul 779553
Flxq_auttrace_pre 960165
Flxq_auttrace_sqr 652321
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237947
Flxq_div_pre 2313081
Flxq_easylog 519434
Flxq_inv 335765
Flxq_inv_pre 4182787
Flxq_invsafe 670318
Flxq_invsafe_pre 5325701
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 170641
Flxq_minpoly 45937
Flxq_minpoly_pre 809736
Flxq_mul 13194187
Flxq_mul_pre 187806700
Flxq_norm 443252
Flxq_order 97322
Flxq_pow 932921
Flxq_pow_Frobenius 22269055
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23317519
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232135
Flxq_powers_pre 22448289
Flxq_powu 488361
Flxq_powu_pre 24188480
Flxq_sqr 2763429
Flxq_sqr_pre 275235425
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37665
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 4212590
Flxq_transmul_init 1746526
RgXV_to_FlxV 7
RgX_to_Flx 2208856
Rg_to_F2 1715172
Rg_to_Fl 73079902
Rg_to_Flxq 3589489
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798643
ZXV_to_FlxV 0
ZX_to_Flx 171080560
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593747
ZpX_invLaplace_init 497
_Fl2_mul 1924953
_Fl2_pow 671601
_Fl2_rand 113814
_Fl2_sqr 4913451
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11793650
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146825673
_Flxq_neg 366572
_Flxq_one 22450652
_Flxq_pow 22261644
_Flxq_powu 68
_Flxq_powu_i 22935892
_Flxq_rand 6557
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267582507
bounded_order 394005
gener_Flxq 7201
get_Fl_threshold 2321508260
get_Flx_red 985965262
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12213
int_to_Flx_half 507058
int_to_Flx_quart 107397
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20942957
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 5625416
kron_unpack_Flx_bits_wide 5670324
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8447014
mkF2 27670894
monomial_Flx 941369
random_Flx 2646370
set_Flxq 68922
set_Flxq_pre 69259687
translate_basecase 688423
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6396471

Generated by: LCOV version 1.16