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 30735-65f72320ad) Lines: 2553 2925 87.3 %
Date: 2026-03-10 09:24:00 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449438
Fl2_inv_pre 197194
Fl2_mul_pre 1951371
Fl2_norm_pre 127589
Fl2_pow_pre 671125
Fl2_sqr_pre 4906949
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76029
Fl_Flxq_log 35583
Fl_Xp1_powu 0
Fl_to_Flx 21967204
Flm_to_FlxV 2772
FlvV_polint_tree 2587759
Flv_Flm_polint 104561
Flv_inv 1744645
Flv_invVandermonde 153445
Flv_inv_i 1756658
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21186384
Flv_inv_pre_inplace 19449574
Flv_polint 1485365
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745855
Flv_roots_to_pol 842198
Flv_to_Flx 25491660
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 325142
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 294671
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28976
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171869
FlxV_to_Flm_lg 12971451
FlxV_to_FlxX 397987
FlxV_to_ZXV 606944
FlxV_to_ZXV_inplace 3031954
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9842854
Flx_Fl_mul 7327448
Flx_Fl_mul_pre 18101195
Flx_Fl_mul_to_monic 11853500
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786153
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170387
Flx_Flxq_eval 791482
Flx_Flxq_eval_pre 2444487
Flx_Frobenius 86619
Flx_Frobenius_pre 13818595
Flx_Laplace 27482
Flx_Newton 54387
Flx_add 66007099
Flx_addmulmul 358985
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527961
Flx_blocks_Flm 12970935
Flx_composedprod 0
Flx_composedsum 27692
Flx_convol 0
Flx_deflate 421264
Flx_deriv 22987622
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36626727
Flx_divrem 30450646
Flx_divrem_Barrett 604719
Flx_divrem_Barrettspec 906226
Flx_divrem_basecase 61232816
Flx_divrem_pre 78675815
Flx_double 2299328
Flx_equal 27239479
Flx_eval 20444923
Flx_eval2BILspec 603305
Flx_eval_powers_pre 48663365
Flx_eval_pre 136195107
Flx_extgcd 857096
Flx_extgcd_basecase 6182868
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6182867
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109535
Flx_gcd 35034357
Flx_gcd_basecase 85822006
Flx_gcd_pre 87483663
Flx_get_red 14509876
Flx_get_red_pre 97377003
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087866
Flx_halfgcd_all_pre 1087870
Flx_halfgcd_pre 872986
Flx_halfres_basecase 1094946
Flx_halfres_i 1114911
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160451
Flx_integ 0
Flx_integXn 423367
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134388
Flx_invBarrett_pre 158849
Flx_invLaplace 54665
Flx_is_l_pow 8232
Flx_is_smooth 74256
Flx_is_smooth_pre 119020
Flx_is_smooth_squarefree 127266
Flx_is_squarefree 9181669
Flx_lgrenormalizespec 2134225
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907191
Flx_mul 26714992
Flx_mul_pre 377892335
Flx_mulhigh_i 950410
Flx_mullimb 1185762203
Flx_mullimb_ok 3362855007
Flx_mulspec 383456169
Flx_mulspec_Kronecker 7333514
Flx_mulspec_basecase 345769737
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10143
Flx_mulspec_mulii_inflate 294051
Flx_mulspec_quartmulii 97177
Flx_neg 3264317
Flx_neg_inplace 1767867
Flx_negspec 3264319
Flx_normalize 64854295
Flx_powu 0
Flx_powu_pre 3923
Flx_recip 0
Flx_recipspec 7287965
Flx_red 1881833
Flx_rem 42224675
Flx_rem_basecase 799462853
Flx_rem_pre 923459426
Flx_renormalize 2144686698
Flx_rescale 1117
Flx_resultant 4732494
Flx_resultant_basecase_pre 14598419
Flx_resultant_pre 14600412
Flx_shift 27403462
Flx_shiftip 630834642
Flx_splitting 147383
Flx_sqr 354600
Flx_sqr_pre 276351993
Flx_sqrspec 276492227
Flx_sqrspec_Kronecker 676961
Flx_sqrspec_basecase 275673799
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136465082
Flx_subspec 898660
Flx_to_Flv 66655645
Flx_to_FlxX 71405
Flx_to_ZX 38306328
Flx_to_ZX_inplace 36529271
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204573
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 984021
Flx_unscale 0
Flx_val 4478729
Flx_valrem 28512771
Flxn_div 56631
Flxn_div_pre 56651
Flxn_exp 0
Flxn_expint 109536
Flxn_inv 1037
Flxn_mul 75984
Flxn_mul_pre 5185035
Flxn_mulhigh 527890
Flxn_recip 218126
Flxn_red 6369918
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 20696
Flxq_autpow_pre 69415
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779623
Flxq_auttrace_pre 959929
Flxq_auttrace_sqr 652366
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237793
Flxq_div_pre 2312926
Flxq_easylog 519461
Flxq_inv 335773
Flxq_inv_pre 4182658
Flxq_invsafe 670514
Flxq_invsafe_pre 5325786
Flxq_is2npower 0
Flxq_issquare 404459
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 170646
Flxq_minpoly 45937
Flxq_minpoly_pre 809546
Flxq_mul 13193907
Flxq_mul_pre 188423848
Flxq_norm 443094
Flxq_order 97322
Flxq_pow 932896
Flxq_pow_Frobenius 22630095
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23678404
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232110
Flxq_powers_pre 22446039
Flxq_powu 488361
Flxq_powu_pre 24186730
Flxq_sqr 2763157
Flxq_sqr_pre 275405638
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
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 4696
Flxq_transmul 4211758
Flxq_transmul_init 1745958
RgXV_to_FlxV 7
RgX_to_Flx 2193203
Rg_to_F2 1710380
Rg_to_Fl 72886002
Rg_to_Flxq 3588178
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797977
ZXV_to_FlxV 0
ZX_to_Flx 170940302
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593650
ZpX_invLaplace_init 497
_Fl2_mul 1922355
_Fl2_pow 671113
_Fl2_rand 113652
_Fl2_sqr 4906936
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11790980
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147442862
_Flxq_neg 366572
_Flxq_one 22447426
_Flxq_pow 22622688
_Flxq_powu 68
_Flxq_powu_i 22933545
_Flxq_rand 6579
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267720432
bounded_order 394025
gener_Flxq 7201
get_Fl_threshold 2323524158
get_Flx_red 986440425
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12217
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 20937203
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 5623773
kron_unpack_Flx_bits_wide 5669486
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8444681
mkF2 7318317
monomial_Flx 941080
random_Flx 2645809
set_Flxq 68922
set_Flxq_pre 69615944
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6416651

Generated by: LCOV version 1.16