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 30772-246cd0a587) Lines: 2553 2925 87.3 %
Date: 2026-03-28 09:27:57 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450492
Fl2_inv_pre 197370
Fl2_mul_pre 17095582
Fl2_norm_pre 97118595
Fl2_pow_pre 672400
Fl2_sqr_pre 4920426
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76093
Fl_Flxq_log 35571
Fl_Xp1_powu 0
Fl_to_Flx 21974451
Flm_to_FlxV 2772
FlvV_polint_tree 2587869
Flv_Flm_polint 104561
Flv_inv 1744744
Flv_invVandermonde 153445
Flv_inv_i 1756756
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21171003
Flv_inv_pre_inplace 19434767
Flv_polint 1485458
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745946
Flv_roots_to_pol 842197
Flv_to_Flx 25493680
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 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 297759
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28989
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171852
FlxV_to_Flm_lg 12971966
FlxV_to_FlxX 397987
FlxV_to_ZXV 609495
FlxV_to_ZXV_inplace 3032558
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846715
Flx_Fl_mul 9423655
Flx_Fl_mul_pre 20197213
Flx_Fl_mul_to_monic 11860372
Flx_Fl_sub 151685
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786249
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170976
Flx_Flxq_eval 791465
Flx_Flxq_eval_pre 2444904
Flx_Frobenius 86619
Flx_Frobenius_pre 13820088
Flx_Laplace 27486
Flx_Newton 54380
Flx_add 73853481
Flx_addmulmul 358990
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 528126
Flx_blocks_Flm 12971268
Flx_composedprod 0
Flx_composedsum 27698
Flx_convol 0
Flx_deflate 421314
Flx_deriv 23016075
Flx_diff1 660575
Flx_digits 0
Flx_div_by_X_x 36625364
Flx_divrem 30452267
Flx_divrem_Barrett 605560
Flx_divrem_Barrettspec 907446
Flx_divrem_basecase 61237241
Flx_divrem_pre 78678002
Flx_double 1179459
Flx_equal 27458665
Flx_eval 20453402
Flx_eval2BILspec 603287
Flx_eval_powers_pre 48619436
Flx_eval_pre 136205028
Flx_extgcd 857087
Flx_extgcd_basecase 6183797
Flx_extgcd_halfgcd 126072
Flx_extgcd_pre 6183794
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109535
Flx_gcd 35059099
Flx_gcd_basecase 85853530
Flx_gcd_pre 87517063
Flx_get_red 14510099
Flx_get_red_pre 98435297
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087565
Flx_halfgcd_all_pre 1087566
Flx_halfgcd_pre 873248
Flx_halfres_basecase 1094645
Flx_halfres_i 1114610
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160715
Flx_integ 0
Flx_integXn 423400
Flx_invBarrett 0
Flx_invBarrett_Newton 23159
Flx_invBarrett_basecase 134386
Flx_invBarrett_pre 158845
Flx_invLaplace 54664
Flx_is_l_pow 8128
Flx_is_smooth 74256
Flx_is_smooth_pre 118049
Flx_is_smooth_squarefree 126165
Flx_is_squarefree 9200834
Flx_lgrenormalizespec 2136661
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31528
Flx_mod_Xnm1 4907577
Flx_mul 26708310
Flx_mul_pre 383711327
Flx_mulhigh_i 950791
Flx_mullimb 1188296078
Flx_mullimb_ok 3406064479
Flx_mulspec 389354452
Flx_mulspec_Kronecker 7372674
Flx_mulspec_basecase 349318606
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10144
Flx_mulspec_mulii_inflate 294042
Flx_mulspec_quartmulii 97166
Flx_neg 4176555
Flx_neg_inplace 1799550
Flx_negspec 4176550
Flx_normalize 64873028
Flx_powu 0
Flx_powu_pre 3971
Flx_recip 0
Flx_recipspec 7292124
Flx_red 1884580
Flx_rem 42236141
Flx_rem_basecase 803479338
Flx_rem_pre 929541736
Flx_renormalize 2176014118
Flx_rescale 1117
Flx_resultant 4740344
Flx_resultant_basecase_pre 14606446
Flx_resultant_pre 14608504
Flx_shift 27408094
Flx_shiftip 634536651
Flx_splitting 147727
Flx_sqr 370315
Flx_sqr_pre 276345889
Flx_sqrspec 276482525
Flx_sqrspec_Kronecker 670369
Flx_sqrspec_basecase 275669406
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136569888
Flx_subspec 899740
Flx_to_Flv 66655144
Flx_to_FlxX 71405
Flx_to_ZX 38378709
Flx_to_ZX_inplace 36548167
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 663237
Flx_translate1_basecase 675318
Flx_triple 551294
Flx_unscale 0
Flx_val 4472010
Flx_valrem 28524750
Flxn_div 56645
Flxn_div_pre 56656
Flxn_exp 0
Flxn_expint 109534
Flxn_inv 1037
Flxn_mul 75979
Flxn_mul_pre 5187321
Flxn_mulhigh 527447
Flxn_recip 218179
Flxn_red 6372013
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 20697
Flxq_autpow_pre 69414
Flxq_autpow_sqr 47244
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112092
Flxq_autsum_pre 98573
Flxq_autsum_sqr 104889
Flxq_auttrace 0
Flxq_auttrace_mul 779571
Flxq_auttrace_pre 960165
Flxq_auttrace_sqr 652319
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519448
Flxq_inv 335790
Flxq_inv_pre 4183787
Flxq_invsafe 670339
Flxq_invsafe_pre 5326718
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 170642
Flxq_minpoly 45937
Flxq_minpoly_pre 809755
Flxq_mul 18080044
Flxq_mul_pre 194139405
Flxq_norm 443259
Flxq_order 97322
Flxq_pow 932982
Flxq_pow_Frobenius 23690876
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24739268
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232126
Flxq_powers_pre 22446992
Flxq_powu 488350
Flxq_powu_pre 24184314
Flxq_sqr 2763470
Flxq_sqr_pre 275333650
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 4212565
Flxq_transmul_init 1746484
RgXV_to_FlxV 7
RgX_to_Flx 2209596
Rg_to_F2 1715194
Rg_to_Fl 73086965
Rg_to_Flxq 3461436
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798907
ZXV_to_FlxV 0
ZX_to_Flx 171070153
Z_mod2BIL_Flx 305856
Z_mod2BIL_Flx_2 308786
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593870
ZpX_invLaplace_init 497
_Fl2_mul 1927217
_Fl2_pow 672395
_Fl2_rand 114029
_Fl2_sqr 4920403
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11793682
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149699146
_Flxq_neg 366572
_Flxq_one 22448287
_Flxq_pow 23683467
_Flxq_powu 68
_Flxq_powu_i 22931753
_Flxq_rand 6558
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 269110671
bounded_order 394009
gener_Flxq 7201
get_Fl_threshold 2335825593
get_Flx_red 992572065
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12214
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 21008269
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 5626389
kron_unpack_Flx_bits_wide 5699121
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8476623
mkF2 27680496
monomial_Flx 941342
random_Flx 2646289
set_Flxq 68922
set_Flxq_pre 70676184
translate_basecase 688494
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6423139

Generated by: LCOV version 1.16