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 30824-18397de1d0) Lines: 2553 2925 87.3 %
Date: 2026-04-18 09:26:04 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2067
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3940
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6574
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8181
Flx_halfres_update_pre 9404
_Flxq_inv 9460
Flv_inv_pre 9643
Flx_mulspec_mulii 10147
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12216
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19964
Flxq_autpow_msqr 20698
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27491
Flx_composedsum 27697
FlxV_composedsum 28985
Flx_mod_Xn1 31627
FlxV_Flc_mul 34482
Fl_Flxq_log 35557
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47250
Flv_inv_indir 52209
kron_pack_Flx_spec 53168
Flx_Newton 54391
Flx_invLaplace 54664
Flxn_div 56588
Flxn_div_pre 56619
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69417
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75984
Fl2_sqrtn_pre 76163
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86554
Flx_Frobenius 86615
Flx_mulspec_quartmulii 97167
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104554
Flxq_autsum_sqr 104886
int_to_Flx_quart 107385
Flxn_expint 109544
Flx_fromNewton 109547
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113972
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118398
Flx_extgcd_halfgcd 126092
Flx_is_smooth_squarefree 126519
Flx_invBarrett_basecase 134411
Flx_splitting 147495
Flx_Fl_sub 151687
Flv_invVandermonde 153445
Flx_invBarrett_pre 158871
Flx_inflate 160559
Flxq_log 164210
Flxq_matrix_pow_pre 170637
FlxV_to_Flm 171848
Fl2_inv_pre 197646
Flx_to_int_quartspec 204552
Flxq_sumautsum_pre 210695
Flxn_recip 218036
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232120
FlxqC_red_pre 234855
get_Flxq_star 283433
Flx_mulspec_mulii_inflate 294054
Flxq_sumautsum_sqr 295218
FlxT_red 295681
Z_mod2BIL_Flx 305868
Z_mod2BIL_Flx_2 308798
FlxC_eval_powers_pre 325154
Flxq_inv 335789
Flx_addmulmul 359025
_Flxq_neg 366572
Flx_sqr 370274
_Flxq_add 389834
bounded_order 394019
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421308
Flx_integXn 423336
Flxq_norm 443243
Fl2_equal1 450411
Flx_to_int_halfspec 468590
Flxq_powu 488354
int_to_Flx_half 507058
Flxq_easylog 519432
Flxn_mulhigh 527613
Flx_blocks 527711
Flx_triple 551294
Flx_eval2BILspec 603311
Flx_divrem_Barrett 605014
FlxV_to_ZXV 609489
Flxq_auttrace_sqr 652263
Flx_diff1 660418
Flx_translate1 663083
Flxq_invsafe 670036
Flx_sqrspec_Kronecker 670285
_Fl2_pow 672533
Fl2_pow_pre 672545
Flx_translate1_basecase 675165
kron_pack_Flx_spec_half 688104
translate_basecase 688347
Flxq_auttrace_mul 779462
Flx_Flxq_eval 791474
Flxq_minpoly_pre 809776
Flv_roots_to_pol 841992
Flx_extgcd 857833
Flx_halfgcd_pre 873209
Flx_subspec 898601
Flx_divrem_Barrettspec 906193
Flxq_pow 933152
monomial_Flx 941354
Flx_mulhigh_i 950014
Flxq_auttrace_pre 960115
Flx_halfgcd_all_i 1087645
Flx_halfgcd_all_pre 1087645
Flx_halfres_basecase 1094718
Flx_halfres_i 1114689
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485457
_Flxq_red 1550928
Rg_to_F2 1715144
Flv_inv 1744734
Flv_producttree 1745947
Flxq_transmul_init 1746371
Flv_inv_i 1756746
Flx_Flv_multieval_tree 1786250
Flx_neg_inplace 1799550
Flx_red 1882662
_Fl2_mul 1926343
Flx_lgrenormalizespec 2134384
RgX_to_Flx 2209605
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444885
FlvV_polint_tree 2587586
random_Flx 2646134
Flxq_sqr 2763468
FlxV_to_ZXV_inplace 3032479
Rg_to_Flxq 3461433
Flx_addshift 3768149
ZXT_to_FlxT 3798397
Flx_neg 4175927
Flx_negspec 4175932
Flxq_inv_pre 4183782
Flxq_transmul 4212318
Flx_val 4466456
Flx_resultant 4608577
Flx_mod_Xnm1 4908028
Fl2_sqr_pre 4914700
_Fl2_sqr 4914787
Flxn_mul_pre 5183215
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326392
kron_unpack_Flx_bits_narrow 5624658
kron_unpack_Flx_bits_wide 5694640
Flx_extgcd_basecase 6184176
Flx_extgcd_pre 6184191
Flxn_red 6367368
zx_to_Flx 6394657
Flx_recipspec 7288712
Flx_addspec 7337710
Flx_mulspec_Kronecker 7366066
Z_to_Flx 7593851
maxbitcoeffpol 8471378
Flx_is_squarefree 9207320
Flx_Fl_mul 9422938
Flx_Fl_add 9844664
_Flx_mul 11768355
Flx_Fl_mul_to_monic 11860058
Flx_blocks_Flm 12970365
FlxV_to_Flm_lg 12971289
Flx_FlxqV_eval_pre 13169508
Flx_Frobenius_pre 13817666
Flx_resultant_basecase_pre 14472922
Flx_resultant_pre 14475472
Flx_get_red 14505918
Fl2_mul_pre 17094696
Flxq_mul 18079770
Flv_inv_pre_inplace 19293184
Flx_Fl_mul_pre 20196662
Flx_eval 20409259
kron_pack_Flx_spec_bits 20996128
Flv_inv_pre_indir 21020212
Fl_to_Flx 21918244
_Flxq_one 22437759
Flxq_powers_pre 22439302
Flx_deriv 22889445
_Flxq_powu_i 22927460
_Flxq_pow 23291792
Flxq_pow_Frobenius 23299199
Flxq_powu_pre 24179595
Flxq_pow_pre 24347703
Flv_to_Flx 25490386
Flx_mul 26712578
Flx_equal 27115770
Flx_shift 27402335
mkF2 27673628
Flx_valrem 28456881
Flx_divrem 30450199
Flx_gcd 35026230
Flx_to_ZX_inplace 36546471
Flx_div_by_X_x 36559735
Flx_to_ZX 38382951
Flx_rem 42202608
Flx_eval_powers_pre 48504288
Flx_divrem_basecase 61226700
Flx_normalize 64794999
Flx_to_Flv 66649554
set_Flxq_pre 70260740
Rg_to_Fl 73085810
Flx_add 73787616
Flx_divrem_pre 78659404
Flx_gcd_basecase 85773166
Flx_gcd_pre 87442271
Fl2_norm_pre 97118643
Flx_get_red_pre 98005804
Flx_eval_pre 136126625
Flx_sub 136553025
_Flxq_mul 148643836
ZX_to_Flx 171049258
Flxq_mul_pre 193071935
_Flxq_sqr 267546581
Flxq_sqr_pre 273745276
Flx_sqr_pre 274725546
Flx_sqrspec 275060930
Flx_sqrspec_basecase 275146759
Flx_mulspec_basecase 348314769
Flx_mul_pre 382256683
Flx_mulspec 387953467
Flx_shiftip 631837811
Flx_rem_basecase 799896086
Flx_rem_pre 925647670
get_Flx_red 988613899
Flx_mullimb 1185158479
Flx_renormalize 2168304130
get_Fl_threshold 2323758593
Flx_mullimb_ok 3377291366

Generated by: LCOV version 1.16