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 30672-116f3d5b0e) Lines: 2553 2925 87.3 %
Date: 2026-02-07 09:23:42 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450172
Fl2_inv_pre 197464
Fl2_mul_pre 1954395
Fl2_norm_pre 127595
Fl2_pow_pre 672159
Fl2_sqr_pre 4914536
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76092
Fl_Flxq_log 35553
Fl_Xp1_powu 0
Fl_to_Flx 21956882
Flm_to_FlxV 2772
FlvV_polint_tree 2587475
Flv_Flm_polint 104561
Flv_inv 1744473
Flv_invVandermonde 153445
Flv_inv_i 1756488
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21127640
Flv_inv_pre_inplace 19392955
Flv_polint 1485193
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745671
Flv_roots_to_pol 842165
Flv_to_Flx 25488852
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 325156
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25999
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 290050
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28953
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171876
FlxV_to_Flm_lg 12969156
FlxV_to_FlxX 397977
FlxV_to_ZXV 606839
FlxV_to_ZXV_inplace 3031575
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845132
Flx_Fl_mul 7326730
Flx_Fl_mul_pre 18290921
Flx_Fl_mul_to_monic 11856685
Flx_Fl_sub 151676
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785980
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13168037
Flx_Flxq_eval 791291
Flx_Flxq_eval_pre 2444627
Flx_Frobenius 86618
Flx_Frobenius_pre 13813628
Flx_Laplace 27330
Flx_Newton 54096
Flx_add 66142433
Flx_addmulmul 416798
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526081
Flx_blocks_Flm 12968684
Flx_composedprod 0
Flx_composedsum 27550
Flx_convol 0
Flx_deflate 420806
Flx_deriv 22981625
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36596767
Flx_divrem 30449224
Flx_divrem_Barrett 603447
Flx_divrem_Barrettspec 905016
Flx_divrem_basecase 62288097
Flx_divrem_pre 79732401
Flx_double 2443925
Flx_equal 26232759
Flx_eval 20434936
Flx_eval2BILspec 603295
Flx_eval_powers_pre 48574473
Flx_eval_pre 136191846
Flx_extgcd 856779
Flx_extgcd_basecase 6286285
Flx_extgcd_halfgcd 146650
Flx_extgcd_pre 6286288
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109396
Flx_gcd 35031577
Flx_gcd_basecase 85798008
Flx_gcd_pre 87458358
Flx_get_red 14504017
Flx_get_red_pre 96412442
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126906
Flx_halfgcd_all_pre 1126908
Flx_halfgcd_pre 873335
Flx_halfres_basecase 1133984
Flx_halfres_i 1153948
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 159972
Flx_integ 0
Flx_integXn 422764
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158852
Flx_invLaplace 54358
Flx_is_l_pow 8209
Flx_is_smooth 74256
Flx_is_smooth_pre 118621
Flx_is_smooth_squarefree 126842
Flx_is_squarefree 9181096
Flx_lgrenormalizespec 2132118
Flx_matFrobenius 0
Flx_matFrobenius_pre 86564
Flx_mod_Xn1 31510
Flx_mod_Xnm1 4907170
Flx_mul 27804597
Flx_mul_pre 378076408
Flx_mulhigh_i 947872
Flx_mullimb 1185859418
Flx_mullimb_ok 3357904525
Flx_mulspec 383670520
Flx_mulspec_Kronecker 7351887
Flx_mulspec_basecase 345922554
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10142
Flx_mulspec_mulii_inflate 294046
Flx_mulspec_quartmulii 97167
Flx_neg 3263329
Flx_neg_inplace 1780025
Flx_negspec 3263338
Flx_normalize 64848580
Flx_powu 0
Flx_powu_pre 3852
Flx_recip 0
Flx_recipspec 7287052
Flx_red 1876283
Flx_rem 42229660
Flx_rem_basecase 796975914
Flx_rem_pre 921008278
Flx_renormalize 2149260232
Flx_rescale 1117
Flx_resultant 4731711
Flx_resultant_basecase_pre 14597148
Flx_resultant_pre 14599063
Flx_shift 27397691
Flx_shiftip 630089021
Flx_splitting 146867
Flx_sqr 354598
Flx_sqr_pre 275676788
Flx_sqrspec 275772372
Flx_sqrspec_Kronecker 694999
Flx_sqrspec_basecase 274976552
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138649783
Flx_subspec 897444
Flx_to_Flv 66651533
Flx_to_FlxX 71405
Flx_to_ZX 38299805
Flx_to_ZX_inplace 36574017
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4470512
Flx_valrem 28507920
Flxn_div 56328
Flxn_div_pre 56350
Flxn_exp 0
Flxn_expint 109392
Flxn_inv 1037
Flxn_mul 75829
Flxn_mul_pre 5179448
Flxn_mulhigh 526002
Flxn_recip 217358
Flxn_red 6360665
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69452
Flxq_autpow_sqr 47317
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112476
Flxq_autsum_pre 98772
Flxq_autsum_sqr 105114
Flxq_auttrace 0
Flxq_auttrace_mul 780125
Flxq_auttrace_pre 959900
Flxq_auttrace_sqr 652801
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519350
Flxq_inv 335769
Flxq_inv_pre 4286465
Flxq_invsafe 670458
Flxq_invsafe_pre 5429528
Flxq_is2npower 0
Flxq_issquare 404492
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 170659
Flxq_minpoly 45937
Flxq_minpoly_pre 809706
Flxq_mul 13192565
Flxq_mul_pre 186713917
Flxq_norm 443144
Flxq_order 97328
Flxq_pow 948262
Flxq_pow_Frobenius 21672749
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 22736270
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 232012
Flxq_powers_pre 22437770
Flxq_powu 488331
Flxq_powu_pre 24180412
Flxq_sqr 2763153
Flxq_sqr_pre 274713675
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4213181
Flxq_transmul_init 1746642
RgXV_to_FlxV 7
RgX_to_Flx 2249899
Rg_to_F2 1710045
Rg_to_Fl 73209756
Rg_to_Flxq 3588263
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3811912
ZXV_to_FlxV 0
ZX_to_Flx 171001705
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556607
ZpX_invLaplace_init 497
_Fl2_mul 1925353
_Fl2_pow 672145
_Fl2_rand 113840
_Fl2_sqr 4914533
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11788855
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 145504672
_Flxq_neg 366572
_Flxq_one 22438945
_Flxq_pow 21665338
_Flxq_powu 68
_Flxq_powu_i 22926038
_Flxq_rand 6573
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266852834
bounded_order 395400
gener_Flxq 7201
get_Fl_threshold 2320008581
get_Flx_red 985087283
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20990678
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 5659891
kron_unpack_Flx_bits_wide 5669396
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8480821
mkF2 7329439
monomial_Flx 941414
random_Flx 2646203
set_Flxq 68922
set_Flxq_pre 68657750
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6411493

Generated by: LCOV version 1.16