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 30759-17b423fb9b) Lines: 2553 2925 87.3 %
Date: 2026-03-20 09:26:27 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 2066
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 3915
Flxq_pow_table_pre 4392
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6578
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8190
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10143
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27478
Flx_composedsum 27696
FlxV_composedsum 28975
Flx_mod_Xn1 31528
FlxV_Flc_mul 34482
Fl_Flxq_log 35571
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47243
Flv_inv_indir 52215
kron_pack_Flx_spec 53168
Flx_Newton 54384
Flx_invLaplace 54655
Flxn_div 56628
Flxn_div_pre 56639
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69413
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75988
Fl2_sqrtn_pre 76082
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86554
Flx_Frobenius 86618
Flx_mulspec_quartmulii 97164
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 104886
int_to_Flx_quart 107384
Flx_fromNewton 109534
Flxn_expint 109534
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113780
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118499
Flx_extgcd_halfgcd 126066
Flx_is_smooth_squarefree 126686
Flx_invBarrett_basecase 134384
Flx_splitting 147326
Flx_Fl_sub 151689
Flv_invVandermonde 153445
Flx_invBarrett_pre 158845
Flx_inflate 160328
Flxq_log 164210
Flxq_matrix_pow_pre 170642
FlxV_to_Flm 171855
Fl2_inv_pre 197398
Flx_to_int_quartspec 204548
Flxq_sumautsum_pre 210695
Flxn_recip 218129
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232130
FlxqC_red_pre 234855
Flxq_div 237947
get_Flxq_star 283433
Flx_mulspec_mulii_inflate 294050
FlxT_red 294167
Flxq_sumautsum_sqr 295218
Z_mod2BIL_Flx 305864
Z_mod2BIL_Flx_2 308794
FlxC_eval_powers_pre 325160
Flxq_inv 335770
Flx_addmulmul 358981
_Flxq_neg 366572
Flx_sqr 370246
_Flxq_add 389834
bounded_order 394027
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421324
Flx_integXn 423353
Flxq_norm 443245
Fl2_equal1 450165
Flx_to_int_halfspec 468590
Flxq_powu 488352
int_to_Flx_half 507058
Flxq_easylog 519430
Flxn_mulhigh 527779
Flx_blocks 527857
Flx_eval2BILspec 603303
Flx_divrem_Barrett 604580
FlxV_to_ZXV 609499
Flxq_auttrace_sqr 652209
Flx_diff1 660614
Flx_translate1 663281
Flxq_invsafe 670498
_Fl2_pow 672037
Fl2_pow_pre 672048
Flx_translate1_basecase 675357
Flx_sqrspec_Kronecker 676971
kron_pack_Flx_spec_half 688104
translate_basecase 688230
Flxq_auttrace_mul 779457
Flx_Flxq_eval 791466
Flxq_minpoly_pre 809735
Flv_roots_to_pol 842133
Flx_extgcd 857082
Flx_halfgcd_pre 873160
Flx_subspec 898381
Flx_divrem_Barrettspec 905917
Flxq_pow 932931
monomial_Flx 941250
Flx_mulhigh_i 950164
Flxq_auttrace_pre 960136
Flx_triple 984021
Flx_halfgcd_all_i 1087567
Flx_halfgcd_all_pre 1087574
Flx_halfres_basecase 1094646
Flx_halfres_i 1114611
_Flxq_rmul 1461838
Flv_polint 1485475
_Flxq_red 1550928
Rg_to_F2 1715117
Flv_inv 1744758
Flv_producttree 1745961
Flxq_transmul_init 1746288
Flv_inv_i 1756770
Flx_neg_inplace 1767867
Flx_Flv_multieval_tree 1786260
Flx_red 1881364
_Fl2_mul 1924414
Flx_lgrenormalizespec 2133634
RgX_to_Flx 2208855
Flx_double 2299328
Flxq_div_pre 2313081
Flx_Flxq_eval_pre 2444852
FlvV_polint_tree 2587807
random_Flx 2646217
Flxq_sqr 2763425
FlxV_to_ZXV_inplace 3032575
Flx_negspec 3264438
Flx_neg 3264453
Rg_to_Flxq 3589452
Flx_addshift 3704783
ZXT_to_FlxT 3797865
Flxq_inv_pre 4182748
Flxq_transmul 4212077
Flx_val 4479351
Flx_resultant 4740368
Flx_mod_Xnm1 4907912
_Fl2_sqr 4911078
Fl2_sqr_pre 4911097
Flxn_mul_pre 5184688
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5325857
kron_unpack_Flx_bits_narrow 5623252
kron_unpack_Flx_bits_wide 5668384
Flx_extgcd_pre 6182927
Flx_extgcd_basecase 6182937
Flxn_red 6369413
zx_to_Flx 6418404
Flx_addspec 7210978
Flx_recipspec 7288328
Flx_Fl_mul 7327216
Flx_mulspec_Kronecker 7331989
Z_to_Flx 7593764
maxbitcoeffpol 8442975
Flx_is_squarefree 9200988
Flx_Fl_add 9845571
_Flx_mul 11793187
Flx_Fl_mul_to_monic 11859100
FlxV_to_Flm_lg 12970955
Flx_blocks_Flm 12970987
Flx_FlxqV_eval_pre 13170501
Flxq_mul 13194215
Flx_Frobenius_pre 13819682
Flx_get_red 14510007
Flx_resultant_basecase_pre 14606505
Flx_resultant_pre 14608588
Fl2_mul_pre 17092778
Flx_Fl_mul_pre 18100228
Flv_inv_pre_inplace 19476579
Flx_eval 20444229
kron_pack_Flx_spec_bits 20933540
Flv_inv_pre_indir 21214672
Fl_to_Flx 21971855
Flxq_powers_pre 22446688
_Flxq_one 22447476
_Flxq_pow 22636918
Flxq_pow_Frobenius 22644325
_Flxq_powu_i 22932959
Flx_deriv 23017110
Flxq_pow_pre 23692757
Flxq_powu_pre 24185191
Flv_to_Flx 25492263
Flx_mul 26707467
Flx_equal 27239996
Flx_shift 27404420
mkF2 27668163
Flx_valrem 28524910
Flx_divrem 30451087
Flx_gcd 35057089
Flx_to_ZX_inplace 36545068
Flx_div_by_X_x 36621511
Flx_to_ZX 38312513
Flx_rem 42225431
Flx_eval_powers_pre 48679136
Flx_divrem_basecase 61238194
Flx_normalize 64882750
Flx_add 66011872
Flx_to_Flv 66652771
set_Flxq_pre 69627440
Rg_to_Fl 73080004
Flx_divrem_pre 78678917
Flx_gcd_basecase 85850276
Flx_gcd_pre 87515686
Fl2_norm_pre 97118626
Flx_get_red_pre 97392228
Flx_eval_pre 136199103
Flx_sub 137098289
_Flxq_mul 147555968
ZX_to_Flx 171053896
Flxq_mul_pre 188536352
_Flxq_sqr 267977235
Flxq_sqr_pre 275673871
Flx_sqrspec_basecase 275961533
Flx_sqr_pre 276661360
Flx_sqrspec 276808261
Flx_mulspec_basecase 345903093
Flx_mul_pre 378014713
Flx_mulspec 383591554
Flx_shiftip 631236560
Flx_rem_basecase 800015353
Flx_rem_pre 923975782
get_Flx_red 987010380
Flx_mullimb 1186403685
Flx_renormalize 2146345281
get_Fl_threshold 2324634592
Flx_mullimb_ok 3365832238

Generated by: LCOV version 1.16