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 30773-2078653b96) Lines: 2553 2925 87.3 %
Date: 2026-04-03 09:26:58 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449507
Fl2_inv_pre 197174
Fl2_mul_pre 17091687
Fl2_norm_pre 97118556
Fl2_pow_pre 671220
Fl2_sqr_pre 4907124
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76067
Fl_Flxq_log 35576
Fl_Xp1_powu 0
Fl_to_Flx 21938370
Flm_to_FlxV 2772
FlvV_polint_tree 2587718
Flv_Flm_polint 104560
Flv_inv 1744781
Flv_invVandermonde 153445
Flv_inv_i 1756790
Flv_inv_indir 52208
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21021483
Flv_inv_pre_inplace 19279464
Flv_polint 1485504
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745985
Flv_roots_to_pol 842066
Flv_to_Flx 25491200
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 325140
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 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 297205
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28988
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171869
FlxV_to_Flm_lg 12971264
FlxV_to_FlxX 397987
FlxV_to_ZXV 609496
FlxV_to_ZXV_inplace 3032572
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9841915
Flx_Fl_mul 9423935
Flx_Fl_mul_pre 20198464
Flx_Fl_mul_to_monic 11858593
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786290
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170177
Flx_Flxq_eval 791475
Flx_Flxq_eval_pre 2444886
Flx_Frobenius 86619
Flx_Frobenius_pre 13818439
Flx_Laplace 27480
Flx_Newton 54368
Flx_add 73778286
Flx_addmulmul 358988
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527747
Flx_blocks_Flm 12970625
Flx_composedprod 0
Flx_composedsum 27694
Flx_convol 0
Flx_deflate 421312
Flx_deriv 23015407
Flx_diff1 660535
Flx_digits 0
Flx_div_by_X_x 36556289
Flx_divrem 30452440
Flx_divrem_Barrett 605417
Flx_divrem_Barrettspec 907005
Flx_divrem_basecase 61235530
Flx_divrem_pre 78677788
Flx_double 1179459
Flx_equal 26125664
Flx_eval 20424360
Flx_eval2BILspec 603301
Flx_eval_powers_pre 48559426
Flx_eval_pre 136182640
Flx_extgcd 857098
Flx_extgcd_basecase 6183602
Flx_extgcd_halfgcd 126071
Flx_extgcd_pre 6183622
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109536
Flx_gcd 35021683
Flx_gcd_basecase 85798521
Flx_gcd_pre 87461442
Flx_get_red 14509153
Flx_get_red_pre 97043305
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087781
Flx_halfgcd_all_pre 1087784
Flx_halfgcd_pre 873155
Flx_halfres_basecase 1094857
Flx_halfres_i 1114825
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9404
Flx_halve 14026
Flx_inflate 160889
Flx_integ 0
Flx_integXn 423335
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134384
Flx_invBarrett_pre 158846
Flx_invLaplace 54639
Flx_is_l_pow 8200
Flx_is_smooth 74256
Flx_is_smooth_pre 118668
Flx_is_smooth_squarefree 126877
Flx_is_squarefree 9201047
Flx_lgrenormalizespec 2135850
Flx_matFrobenius 0
Flx_matFrobenius_pre 86559
Flx_mod_Xn1 31526
Flx_mod_Xnm1 4907236
Flx_mul 26712638
Flx_mul_pre 380458656
Flx_mulhigh_i 950085
Flx_mullimb 1188761987
Flx_mullimb_ok 3334636496
Flx_mulspec 386070406
Flx_mulspec_Kronecker 7370383
Flx_mulspec_basecase 346123646
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10137
Flx_mulspec_mulii_inflate 294049
Flx_mulspec_quartmulii 97167
Flx_neg 4176381
Flx_neg_inplace 1799550
Flx_negspec 4176377
Flx_normalize 64792777
Flx_powu 0
Flx_powu_pre 3963
Flx_recip 0
Flx_recipspec 7290187
Flx_red 1884041
Flx_rem 42230048
Flx_rem_basecase 797792911
Flx_rem_pre 923861237
Flx_renormalize 2163501445
Flx_rescale 1117
Flx_resultant 4739893
Flx_resultant_basecase_pre 14606381
Flx_resultant_pre 14608417
Flx_shift 27403825
Flx_shiftip 629061481
Flx_splitting 147665
Flx_sqr 370301
Flx_sqr_pre 274390633
Flx_sqrspec 274540053
Flx_sqrspec_Kronecker 670351
Flx_sqrspec_basecase 273865482
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136565091
Flx_subspec 899309
Flx_to_Flv 66651372
Flx_to_FlxX 71405
Flx_to_ZX 38377764
Flx_to_ZX_inplace 36546890
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 663204
Flx_translate1_basecase 675290
Flx_triple 551294
Flx_unscale 0
Flx_val 4471760
Flx_valrem 28444839
Flxn_div 56574
Flxn_div_pre 56608
Flxn_exp 0
Flxn_expint 109537
Flxn_inv 1037
Flxn_mul 75981
Flxn_mul_pre 5184587
Flxn_mulhigh 527659
Flxn_recip 218028
Flxn_red 6368310
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 20698
Flxq_autpow_pre 69421
Flxq_autpow_sqr 47251
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112107
Flxq_autsum_pre 98578
Flxq_autsum_sqr 104902
Flxq_auttrace 0
Flxq_auttrace_mul 779515
Flxq_auttrace_pre 960132
Flxq_auttrace_sqr 652268
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519446
Flxq_inv 335790
Flxq_inv_pre 4183770
Flxq_invsafe 670154
Flxq_invsafe_pre 5326522
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 170652
Flxq_minpoly 45937
Flxq_minpoly_pre 809696
Flxq_mul 18079840
Flxq_mul_pre 191187937
Flxq_norm 443270
Flxq_order 97322
Flxq_pow 932922
Flxq_pow_Frobenius 22312576
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23360875
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232129
Flxq_powers_pre 22442004
Flxq_powu 488363
Flxq_powu_pre 24181834
Flxq_sqr 2763475
Flxq_sqr_pre 273369768
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212310
Flxq_transmul_init 1746278
RgXV_to_FlxV 7
RgX_to_Flx 2209606
Rg_to_F2 1715179
Rg_to_Fl 73087152
Rg_to_Flxq 3461450
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798720
ZXV_to_FlxV 0
ZX_to_Flx 171057471
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
Z_mod2BIL_Flx_3 0
Z_to_Flx 7594092
ZpX_invLaplace_init 497
_Fl2_mul 1923303
_Fl2_pow 671204
_Fl2_rand 113836
_Fl2_sqr 4907126
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11768329
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146724085
_Flxq_neg 366572
_Flxq_one 22442880
_Flxq_pow 22305161
_Flxq_powu 68
_Flxq_powu_i 22927528
_Flxq_rand 6549
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267019927
bounded_order 394002
gener_Flxq 7201
get_Fl_threshold 2316749048
get_Flx_red 986876539
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12217
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 21004446
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 5625955
kron_unpack_Flx_bits_wide 5698396
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8475485
mkF2 27663618
monomial_Flx 941243
random_Flx 2646125
set_Flxq 68922
set_Flxq_pre 69286471
translate_basecase 688462
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6409000

Generated by: LCOV version 1.16