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 30831-19b50a36d0) Lines: 2553 2925 87.3 %
Date: 2026-04-23 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
Fl2_equal1 449518
Fl2_inv_pre 197179
Fl2_mul_pre 17092503
Fl2_norm_pre 97118568
Fl2_pow_pre 671212
Fl2_sqr_pre 4911489
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76038
Fl_Flxq_log 35572
Fl_Xp1_powu 0
Fl_to_Flx 21921839
Flm_to_FlxV 2772
FlvV_polint_tree 2587857
Flv_Flm_polint 104562
Flv_inv 1744769
Flv_invVandermonde 153445
Flv_inv_i 1756783
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21105251
Flv_inv_pre_inplace 19377003
Flv_polint 1485487
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745973
Flv_roots_to_pol 842118
Flv_to_Flx 25491687
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 325159
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 290524
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28975
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171854
FlxV_to_Flm_lg 12971797
FlxV_to_FlxX 397987
FlxV_to_ZXV 609503
FlxV_to_ZXV_inplace 3032524
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9845756
Flx_Fl_mul 9421482
Flx_Fl_mul_pre 20196345
Flx_Fl_mul_to_monic 11860627
Flx_Fl_sub 151686
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786279
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170325
Flx_Flxq_eval 791485
Flx_Flxq_eval_pre 2444930
Flx_Frobenius 86612
Flx_Frobenius_pre 13817609
Flx_Laplace 27501
Flx_Newton 54385
Flx_add 73787874
Flx_addmulmul 359022
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527786
Flx_blocks_Flm 12970888
Flx_composedprod 0
Flx_composedsum 27695
Flx_convol 0
Flx_deflate 421329
Flx_deriv 22891164
Flx_diff1 660655
Flx_digits 0
Flx_div_by_X_x 36591756
Flx_divrem 30449441
Flx_divrem_Barrett 603613
Flx_divrem_Barrettspec 904436
Flx_divrem_basecase 61235461
Flx_divrem_pre 78667360
Flx_double 1179459
Flx_equal 26103210
Flx_eval 20414026
Flx_eval2BILspec 603287
Flx_eval_powers_pre 48513498
Flx_eval_pre 136145808
Flx_extgcd 857828
Flx_extgcd_basecase 6184604
Flx_extgcd_halfgcd 126085
Flx_extgcd_pre 6184580
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109552
Flx_gcd 35036734
Flx_gcd_basecase 85794795
Flx_gcd_pre 87465128
Flx_get_red 14506651
Flx_get_red_pre 96997715
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087731
Flx_halfgcd_all_pre 1087733
Flx_halfgcd_pre 873264
Flx_halfres_basecase 1094809
Flx_halfres_i 1114775
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 159976
Flx_integ 0
Flx_integXn 423366
Flx_invBarrett 0
Flx_invBarrett_Newton 23159
Flx_invBarrett_basecase 134410
Flx_invBarrett_pre 158869
Flx_invLaplace 54673
Flx_is_l_pow 8192
Flx_is_smooth 74256
Flx_is_smooth_pre 118611
Flx_is_smooth_squarefree 126779
Flx_is_squarefree 9207594
Flx_lgrenormalizespec 2131204
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31626
Flx_mod_Xnm1 4908079
Flx_mul 26710814
Flx_mul_pre 380222691
Flx_mulhigh_i 950176
Flx_mullimb 1186722458
Flx_mullimb_ok 3341458709
Flx_mulspec 385897989
Flx_mulspec_Kronecker 7363996
Flx_mulspec_basecase 346259436
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10133
Flx_mulspec_mulii_inflate 294042
Flx_mulspec_quartmulii 97178
Flx_neg 4174683
Flx_neg_inplace 1799550
Flx_negspec 4174683
Flx_normalize 64820205
Flx_powu 0
Flx_powu_pre 3860
Flx_recip 0
Flx_recipspec 7285714
Flx_red 1878086
Flx_rem 42203149
Flx_rem_basecase 796883677
Flx_rem_pre 922723424
Flx_renormalize 2162810196
Flx_rescale 1117
Flx_resultant 4609708
Flx_resultant_basecase_pre 14474932
Flx_resultant_pre 14477230
Flx_shift 27404721
Flx_shiftip 628771194
Flx_splitting 146927
Flx_sqr 370165
Flx_sqr_pre 273636808
Flx_sqrspec 273968210
Flx_sqrspec_Kronecker 670199
Flx_sqrspec_basecase 274025448
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136566526
Flx_subspec 896986
Flx_to_Flv 66652039
Flx_to_FlxX 71405
Flx_to_ZX 38382223
Flx_to_ZX_inplace 36547576
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204574
Flx_translate1 663316
Flx_translate1_basecase 675404
Flx_triple 551294
Flx_unscale 0
Flx_val 4465286
Flx_valrem 28467394
Flxn_div 56617
Flxn_div_pre 56642
Flxn_exp 0
Flxn_expint 109548
Flxn_inv 1037
Flxn_mul 75995
Flxn_mul_pre 5184360
Flxn_mulhigh 527715
Flxn_recip 218096
Flxn_red 6368932
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 20698
Flxq_autpow_pre 69421
Flxq_autpow_sqr 47254
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112105
Flxq_autsum_pre 98578
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779573
Flxq_auttrace_pre 960233
Flxq_auttrace_sqr 652335
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519431
Flxq_inv 335788
Flxq_inv_pre 4183765
Flxq_invsafe 670423
Flxq_invsafe_pre 5326772
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 170648
Flxq_minpoly 45937
Flxq_minpoly_pre 809769
Flxq_mul 18079996
Flxq_mul_pre 191013950
Flxq_norm 443252
Flxq_order 97322
Flxq_pow 933146
Flxq_pow_Frobenius 22279764
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23328284
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232139
Flxq_powers_pre 22441055
Flxq_powu 488351
Flxq_powu_pre 24183266
Flxq_sqr 2763475
Flxq_sqr_pre 272659739
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 4212542
Flxq_transmul_init 1746504
RgXV_to_FlxV 7
RgX_to_Flx 2209609
Rg_to_F2 1715040
Rg_to_Fl 73085806
Rg_to_Flxq 3461463
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797057
ZXV_to_FlxV 0
ZX_to_Flx 171049938
Z_mod2BIL_Flx 305856
Z_mod2BIL_Flx_2 308786
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593926
ZpX_invLaplace_init 497
_Fl2_mul 1924141
_Fl2_pow 671208
_Fl2_rand 113841
_Fl2_sqr 4911496
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11777295
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146581244
_Flxq_neg 366572
_Flxq_one 22438433
_Flxq_pow 22272351
_Flxq_powu 68
_Flxq_powu_i 22929633
_Flxq_rand 6567
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266473008
bounded_order 394021
gener_Flxq 7201
get_Fl_threshold 2314038992
get_Flx_red 985640885
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12214
int_to_Flx_half 507057
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 20991701
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 5620269
kron_unpack_Flx_bits_wide 5696185
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8468735
mkF2 27667517
monomial_Flx 941403
random_Flx 2646334
set_Flxq 68922
set_Flxq_pre 69247133
translate_basecase 688573
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6399100

Generated by: LCOV version 1.16