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 30616-7aa4fb0184) Lines: 2553 2925 87.3 %
Date: 2026-01-18 09:22:29 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 3913
Flxq_pow_table_pre 4391
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6573
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8176
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10143
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20698
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 27346
Flx_composedsum 27552
FlxV_composedsum 28961
Flx_translate1_basecase 29202
Flx_mod_Xn1 31508
FlxV_Flc_mul 34482
Fl_Flxq_log 35554
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47321
Flv_inv_indir 52215
kron_pack_Flx_spec 53168
Flx_Newton 54106
Flx_invLaplace 54373
Flxn_div 55142
Flxn_div_pre 55166
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69455
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75847
Fl2_sqrtn_pre 76078
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86568
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97177
Flxq_order 97328
Flxq_autsum_pre 98774
FlxC_to_ZXC 104060
Flv_Flm_polint 104557
Flxq_autsum_sqr 105126
int_to_Flx_quart 107397
Flx_fromNewton 109401
Flxn_expint 109401
Flxq_autsum_mul 112492
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113827
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118398
Flx_is_smooth_squarefree 126568
Fl2_norm_pre 127606
Flx_invBarrett_basecase 134392
Flx_extgcd_halfgcd 146653
Flx_splitting 147326
Flx_Fl_sub 151681
Flv_invVandermonde 153445
Flx_invBarrett_pre 158853
Flx_inflate 160278
Flxq_log 164210
Flxq_matrix_pow_pre 170665
FlxV_to_Flm 171871
Fl2_inv_pre 197424
Flx_to_int_quartspec 204572
Flxq_sumautsum_pre 210713
Flxn_recip 217283
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232009
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
Flx_mulspec_mulii_inflate 294051
FlxT_red 294068
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
FlxC_eval_powers_pre 325157
Flxq_inv 335772
Flx_sqr 354673
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395400
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416800
Flx_deflate 420792
Flx_integXn 422743
Flxq_norm 443148
Fl2_equal1 449953
Flx_to_int_halfspec 468590
Flxq_powu 488331
int_to_Flx_half 507058
Flxn_mulhigh 516765
Flx_blocks 516864
Flxq_easylog 519341
Flx_eval2BILspec 603305
Flx_divrem_Barrett 604576
FlxV_to_ZXV 606738
Flxq_auttrace_sqr 652787
Flxq_invsafe 670419
_Fl2_pow 671836
Fl2_pow_pre 671842
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695042
Flxq_auttrace_mul 780100
Flx_Flxq_eval 791305
Flxq_minpoly_pre 809740
Flv_roots_to_pol 842034
Flx_extgcd 856699
Flx_halfgcd_pre 873313
Flx_subspec 898520
Flx_divrem_Barrettspec 906162
Flx_mulhigh_i 938598
monomial_Flx 941383
Flxq_pow 948285
Flxq_auttrace_pre 959918
Flx_triple 1049261
Flx_halfgcd_all_i 1126902
Flx_halfgcd_all_pre 1126906
Flx_halfres_basecase 1133979
Flx_halfres_i 1153946
_Flxq_rmul 1461838
Flv_polint 1485162
_Flxq_red 1550928
Rg_to_F2 1710146
Flv_inv 1744437
Flv_producttree 1745663
Flxq_transmul_init 1746602
Flv_inv_i 1756448
Flx_neg_inplace 1777875
Flx_Flv_multieval_tree 1785966
Flx_red 1879804
_Fl2_mul 1924412
Fl2_mul_pre 1953436
Flx_lgrenormalizespec 2134497
RgX_to_Flx 2249939
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444611
FlvV_polint_tree 2587207
random_Flx 2646118
Flxq_sqr 2763156
FlxV_to_ZXV_inplace 3031524
Flx_neg 3264159
Flx_negspec 3264163
Rg_to_Flxq 3588250
Flx_addshift 3724675
ZXT_to_FlxT 3812932
Flxq_transmul 4212991
Flxq_inv_pre 4286490
Flx_val 4465836
Flx_resultant 4733883
Flx_mod_Xnm1 4907932
Fl2_sqr_pre 4910996
_Fl2_sqr 4911079
Flxn_mul_pre 5158233
Flxq_invsafe_pre 5429465
kron_unpack_Flx_bits_narrow 5657436
kron_unpack_Flx_bits_wide 5666440
Flx_extgcd_basecase 6286144
Flx_extgcd_pre 6286147
Flxn_red 6328942
zx_to_Flx 6389330
Flx_addspec 7250880
Flx_recipspec 7288977
mkF2 7323963
Flx_Fl_mul 7327549
Flx_mulspec_Kronecker 7347846
Z_to_Flx 7556398
maxbitcoeffpol 8476831
Flx_is_squarefree 9180586
Flx_Fl_add 9842057
_Flx_mul 11776899
Flx_Fl_mul_to_monic 11856150
Flx_blocks_Flm 12966241
FlxV_to_Flm_lg 12966946
Flx_FlxqV_eval_pre 13165652
Flxq_mul 13192563
Flx_Frobenius_pre 13811042
Flx_get_red 14501616
Flx_resultant_basecase_pre 14597748
Flx_resultant_pre 14599914
Flx_Fl_mul_pre 18291313
Flv_inv_pre_inplace 19283985
Flx_eval 20424670
kron_pack_Flx_spec_bits 20983876
Flv_inv_pre_indir 21008154
Fl_to_Flx 21935240
_Flxq_pow 22415365
Flxq_pow_Frobenius 22422779
_Flxq_one 22433192
Flxq_powers_pre 22433268
_Flxq_powu_i 22919366
Flx_deriv 22981371
Flxq_pow_pre 23486222
Flxq_powu_pre 24172228
Flv_to_Flx 25485851
Flx_equal 26972131
Flx_shift 27378390
Flx_mul 27805306
Flx_valrem 28475644
Flx_divrem 30445805
Flx_gcd 35021448
Flx_div_by_X_x 36542295
Flx_to_ZX_inplace 36566376
Flx_to_ZX 38297596
Flx_rem 42233596
Flx_eval_powers_pre 48481283
Flx_divrem_basecase 62275510
Flx_normalize 64812106
Flx_add 66098974
Flx_to_Flv 66638600
set_Flxq_pre 69390475
Rg_to_Fl 73210303
Flx_divrem_pre 79714310
Flx_gcd_basecase 85755541
Flx_gcd_pre 87411520
Flx_get_red_pre 97134695
Flx_eval_pre 136143270
Flx_sub 138624088
_Flxq_mul 146750028
ZX_to_Flx 171004852
Flxq_mul_pre 187933632
_Flxq_sqr 266720325
Flxq_sqr_pre 274600657
Flx_sqr_pre 275542066
Flx_sqrspec 275791870
Flx_sqrspec_basecase 275918055
Flx_mulspec_basecase 347166562
Flx_mul_pre 379084045
Flx_mulspec 384664774
Flx_shiftip 631600370
Flx_rem_basecase 798240459
Flx_rem_pre 922097205
get_Flx_red 986086353
Flx_mullimb 1190217703
Flx_renormalize 2150810965
get_Fl_threshold 2322717707
Flx_mullimb_ok 3353491808

Generated by: LCOV version 1.16