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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - FpXQX_factor.c (source / functions) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 82.6 % 1977 1633 Test Date: 2026-07-22 22:45:42 Functions: 82.2 % 157 129 Legend: Lines:     hit not hit

Function Name	Hit count
F2xqX_Frobenius	0
F2xqX_ddf	0
F2xqX_nbroots	0
F2xqX_split_part	0
Flx_ffintersect	0
Flx_rootsff	0
FlxqX_Berlekamp_i	0
FlxqX_Berlekamp_ker_i	0
FlxqX_ddf	0
FlxqX_nbfact_Frobenius	0
FlxqX_split_Berlekamp	0
Flxq_ffisom_inv	0
FpXQX_Berlekamp_i	0
FpXQX_Berlekamp_ker_i	0
FpXQX_edf_simple	0
FpXQX_factor_Berlekamp	0
FpXQX_factor_Berlekamp_i	0
FpXQX_nbfact	0
FpXQX_nbfact_Frobenius	0
FpXQX_split_Berlekamp	0
FpX_factorff	0
FpX_nbfactff	0
FpX_rootsff	0
FqX_nbfact	0
err_FpXQ	0
factorff	0
polrootsff	0
rootmod0	0
FpXQX_ddf	7
FpXQX_ddf_raw	7
FpXQX_edf	8
err_Flxq	14
sqf_to_fact	14
FpXQX_factor_Shoup	22
FpXQX_edf_rec	23
factormodDDF	28
FlxqX_factor_squarefree	35
FpM_Frobenius_pow	35
FpXQX_roots_mult	35
factormodSQF	35
F2xqX_ddf_init	42
F2xqX_degfact	42
FlxqX_ddf_i	42
FlxqX_degfact	42
FpXQX_degfact	42
FpXQX_degfact_raw	42
FpXQX_factor_squarefree	42
FpXQX_factor_2	43
FpXQX_ddf_i	49
F2xqX_ispower	56
FpX_factorff_i	63
FpXQX_ddf_Shoup	71
FlxqX_factor_squarefree_pre	77
FpXQX_roots_ddf	83
F2xqX_ddf_i	91
FlxqX_ispower	98
FpXQX_ispower	98
F2xqX_factor	133
FlxqX_edf	146
FlxqX_nbfact_by_degree	147
F2xqX_edf_simple	168
FpXQX_factor_Cantor	177
FpX_FpM_FpC_eval	182
FpX_intersect_ker	182
FlxqX_factor	187
FpXQX_ddf_degree	187
to_Fq_fact	189
FpXQX_factor_Yun	210
FqX_ispower	210
FpXQXQ_halfFrobenius	217
to_FqC	224
FlxqX_ddf_degree	233
F2xqX_factor_Shoup	252
to_Fq_pol	252
F2xqX_ddf_Shoup	294
FpX_rootsff_i	308
FpX_factorgalois	322
FpX_ffintersect	322
FlxqX_factor_Shoup	342
RgX_to_FFX	350
FlxqX_edf_simple	357
FlxqX_edf_rec	362
FpXQX_Frobenius	388
Flm_Frobenius_pow	399
FlxqXQ_halfFrobenius	414
F2x_factorff_i	420
FpXQXQ_Frobenius	493
FlxqX_ddf_Shoup	531
FE_concat	553
F2xqX_factor_2	574
FpXQ_ffisom_inv	588
FlxqX_Frobenius	594
FlxqX_invFrobenius	595
FlxqX_Frobenius_deflate	658
FlxqX_factor_2	720
FpXQX_quad_roots	845
FpXQX_roots_split	922
factmod	924
FpXQXQ_halfFrobenius_i	1184
F2xqX_factor_Cantor	1281
FpXQX_nbroots	1673
FpXQX_split_part	1736
FpXQX_roots_edf	1881
FpXQX_easyroots	2564
isabsolutepol	2649
FpX_ffisom	2880
Flx_ffisom	2922
Flxq_ffisom_inv_pre	2922
to_Fq	4851
Flx_nbfactff	7084
FlxqX_nbfact	7084
simpleff_to_nbfact	7084
FlxqX_nbroots	8188
FpXQX_is_squarefree	8813
F2xqX_Frobenius_deflate	9247
FlxqX_roots_split	9387
FlxqX_split_part	9908
FlxqX_Frobenius_pre	10691
FlxqX_is_squarefree	11562
F2xqX_quad_roots	11683
Flx_factorff_i	12019
FlxqXQ_halfFrobenius_i	12110
FlxqX_factor_Cantor	12675
FpXQX_factor	13813
FpXQX_factor_i	13813
FlxqX_quad_roots	14427
F2x_rootsff_i	16647
F2xX_to_F2x	17067
FpXQX_roots	24714
FpXQX_roots_i	24714
Flx_rootsff_i	30099
FpX_factorff_irred	32878
Flx_intersect_ker	39264
Flx_Flm_Flc_eval	40339
Flx_factorgalois	40514
Flx_ffintersect_pre	43450
FlxqX_roots	46434
simplefactmod	47975
factormod0	48451
ff_parse_Tp	49529
F2xqX_roots_edf	50041
FlxqX_roots_edf	53213
FlxqX_factor_squarefree_i	59927
FlxqX_roots_ddf	63847
FlxqX_roots_i	66432
FlxqXQ_Frobenius	70052
F2xqXQ_Frobenius	70565
F2xqX_factor_squarefree	71328
F2xqX_roots	71391
F2xqX_roots_i	75507
F2xqX_roots_ddf	80911
polrootsmod	103677
Flx_factorff_irred	111831
FqX_nbroots	122997
factmod_init	152639
FlxqX_easyroots	183450
F2xqX_easyroots	206417

Generated by: LCOV version 2.0-1