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 30673-b6380924e9) Lines: 2553 2925 87.3 %
Date: 2026-02-08 09:23:25 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449591
Fl2_inv_pre 197119
Fl2_mul_pre 1952477
Fl2_norm_pre 127569
Fl2_pow_pre 671211
Fl2_sqr_pre 4910135
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 75993
Fl_Flxq_log 35557
Fl_Xp1_powu 0
Fl_to_Flx 21957745
Flm_to_FlxV 2772
FlvV_polint_tree 2587575
Flv_Flm_polint 104562
Flv_inv 1744475
Flv_invVandermonde 153445
Flv_inv_i 1756486
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21121266
Flv_inv_pre_inplace 19386606
Flv_polint 1485194
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745676
Flv_roots_to_pol 842176
Flv_to_Flx 25488297
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 325154
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 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 297228
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28967
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171879
FlxV_to_Flm_lg 12969341
FlxV_to_FlxX 397977
FlxV_to_ZXV 606855
FlxV_to_ZXV_inplace 3031637
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9846808
Flx_Fl_mul 7328237
Flx_Fl_mul_pre 18292597
Flx_Fl_mul_to_monic 11856894
Flx_Fl_sub 151683
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785982
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13168276
Flx_Flxq_eval 791323
Flx_Flxq_eval_pre 2444594
Flx_Frobenius 86619
Flx_Frobenius_pre 13814108
Flx_Laplace 27343
Flx_Newton 54113
Flx_add 66153891
Flx_addmulmul 416803
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526273
Flx_blocks_Flm 12968985
Flx_composedprod 0
Flx_composedsum 27555
Flx_convol 0
Flx_deflate 420798
Flx_deriv 22981975
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36585125
Flx_divrem 30446134
Flx_divrem_Barrett 605429
Flx_divrem_Barrettspec 907136
Flx_divrem_basecase 62286988
Flx_divrem_pre 79733317
Flx_double 2443925
Flx_equal 28288785
Flx_eval 20445178
Flx_eval2BILspec 603311
Flx_eval_powers_pre 48609482
Flx_eval_pre 136201823
Flx_extgcd 856794
Flx_extgcd_basecase 6286348
Flx_extgcd_halfgcd 146656
Flx_extgcd_pre 6286334
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109398
Flx_gcd 35027491
Flx_gcd_basecase 85794174
Flx_gcd_pre 87452287
Flx_get_red 14504732
Flx_get_red_pre 98528207
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127054
Flx_halfgcd_all_pre 1127061
Flx_halfgcd_pre 873198
Flx_halfres_basecase 1134132
Flx_halfres_i 1154098
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160827
Flx_integ 0
Flx_integXn 422793
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134393
Flx_invBarrett_pre 158854
Flx_invLaplace 54379
Flx_is_l_pow 8173
Flx_is_smooth 74256
Flx_is_smooth_pre 118478
Flx_is_smooth_squarefree 126677
Flx_is_squarefree 9181093
Flx_lgrenormalizespec 2136346
Flx_matFrobenius 0
Flx_matFrobenius_pre 86571
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4907375
Flx_mul 27794119
Flx_mul_pre 382368109
Flx_mulhigh_i 948154
Flx_mullimb 1187055640
Flx_mullimb_ok 3424854616
Flx_mulspec 387961010
Flx_mulspec_Kronecker 7358451
Flx_mulspec_basecase 350211880
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10146
Flx_mulspec_mulii_inflate 294054
Flx_mulspec_quartmulii 97179
Flx_neg 3264972
Flx_neg_inplace 1780025
Flx_negspec 3264959
Flx_normalize 64865760
Flx_powu 0
Flx_powu_pre 3962
Flx_recip 0
Flx_recipspec 7290590
Flx_red 1882717
Flx_rem 42232093
Flx_rem_basecase 803406514
Flx_rem_pre 927447997
Flx_renormalize 2161579860
Flx_rescale 1117
Flx_resultant 4731824
Flx_resultant_basecase_pre 14597095
Flx_resultant_pre 14599052
Flx_shift 27399848
Flx_shiftip 636565891
Flx_splitting 147667
Flx_sqr 354734
Flx_sqr_pre 277861348
Flx_sqrspec 277949236
Flx_sqrspec_Kronecker 695158
Flx_sqrspec_basecase 277131359
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138658897
Flx_subspec 899582
Flx_to_Flv 66652933
Flx_to_FlxX 71405
Flx_to_ZX 38301048
Flx_to_ZX_inplace 36551286
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204576
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4474730
Flx_valrem 28518425
Flxn_div 56343
Flxn_div_pre 56355
Flxn_exp 0
Flxn_expint 109394
Flxn_inv 1037
Flxn_mul 75844
Flxn_mul_pre 5180097
Flxn_mulhigh 526209
Flxn_recip 217384
Flxn_red 6362174
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 47316
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780134
Flxq_auttrace_pre 960012
Flxq_auttrace_sqr 652848
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519348
Flxq_inv 335771
Flxq_inv_pre 4286489
Flxq_invsafe 670487
Flxq_invsafe_pre 5429555
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 170664
Flxq_minpoly 45937
Flxq_minpoly_pre 809713
Flxq_mul 13192563
Flxq_mul_pre 190965294
Flxq_norm 443138
Flxq_order 97328
Flxq_pow 948308
Flxq_pow_Frobenius 23789825
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24853352
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232026
Flxq_powers_pre 22439181
Flxq_powu 488348
Flxq_powu_pre 24180600
Flxq_sqr 2763152
Flxq_sqr_pre 276885069
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37665
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 4212658
Flxq_transmul_init 1746350
RgXV_to_FlxV 7
RgX_to_Flx 2205416
Rg_to_F2 1710199
Rg_to_Fl 72936669
Rg_to_Flxq 3588288
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813945
ZXV_to_FlxV 0
ZX_to_Flx 171004632
Z_mod2BIL_Flx 305868
Z_mod2BIL_Flx_2 308798
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556714
ZpX_invLaplace_init 497
_Fl2_mul 1923433
_Fl2_pow 671207
_Fl2_rand 113793
_Fl2_sqr 4910119
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11793966
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149753928
_Flxq_neg 366572
_Flxq_one 22440087
_Flxq_pow 23782418
_Flxq_powu 68
_Flxq_powu_i 22925602
_Flxq_rand 6556
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 269050171
bounded_order 395379
gener_Flxq 7201
get_Fl_threshold 2341485522
get_Flx_red 991576212
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12215
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 21003612
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 5665989
kron_unpack_Flx_bits_wide 5669813
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8487370
mkF2 7322878
monomial_Flx 941276
random_Flx 2646136
set_Flxq 68922
set_Flxq_pre 70775431
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6409121

Generated by: LCOV version 1.16