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 - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30530-11e908049b) Lines: 1467 1530 95.9 % Date: 2025-10-13 09:22:58 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	296419
RgX_gtofp_bit	7031607
RgX_normalize1	35901
X2XP1	5990325
ZX_Uspensky	1313790
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15274
ZX_graeffe	5390
ZX_realroots_irred	48653
ZX_rescale2prim	2233754
ZX_sturm	6395
ZX_sturm_i	123171
ZX_sturm_irred	116776
ZX_sturmpart	1128143
ZX_to_ZiX	16458590
ZiX_sqr	99027751
_gen_nored	11201985
_gen_one	14472778
_gen_zero	326122
_intervalcmp	0
_mp_add	24660823
_mp_cmul	34764982
_mp_mul	4374569
_mp_sqr	6298344
_mp_sub	0
_sqrtnr	22709
a_posteriori_errors	537231
abs_update	8005707
abs_update_r	778666
all_roots	536124
append_clone	1614187
bkeval_single_power	5235560
check_ab	1178770
checkbound	2354669
checkvalidpol	267060
clean_roots	536174
cleanroots	231763
cmp_complex_appr	2238581
conformal_basecase	1403904
conformal_mapping	467926
conformal_pol	1404024
dblexp	6549071
dbllog2	302691206
dft	502373
dual_modulus	1012487
eval_rel_pol	13138373
fft	14159411
fft2	7462
findpower	40956650
fix_roots	537227
fix_roots1	398468
fujiwara_bound	2271694
fujiwara_bound_real	1406820
graeffe	49505392
homothetie	1610113
homothetie2n	9957642
homothetie_gauss	36497502
ind_maxlog2	902699
initdft	996353
isexactpol	239753
isexactscalar	931714
isreal	961913
isvalidcoeff	1230235
logmax_modulus	4450934
logmin_modulus	1614803
logmodulus	606757
logpre_modulus	606758
logradius	493979
lower_bound	40955603
mydbllog2i	226434964
mydbllog2r	56769399
mydbllogr	9547264
mygprec	63758549
mygprec_absolute	4340029
mygprec_special	537234
mygprecrc	215193326
mygprecrc_special	2179205
myshiftic	135792378
myshiftrc	35506270
newton_polygon	5507240
optimize_split	493984
parameters	493983
pol_to_gaussint	17589343
polgraeffe	14
polmod_to_embed	84
polrootsbound	27300
polrootsbound_i	27293
polsolve	166722
quicktofp	6978975
realroots	50627
refine_F	502369
refine_H	2460525
root_error	1912588
roots	8018
roots_aux	239781
roots_com	239753
rootsdeg0	42
scalepol	4289457
scalepol2n	0
sol_ok	3378
solve_exact_pol	231145
split_0	494348
split_0_1	468288
split_0_2	468289
split_1	467930
split_2	493984
split_complete	1525920
split_fromU	493983
split_pols	166722
splitcauchy	166731
splitpoleval	5235817
tocomplex	1213991
update_radius	493984
usp	1126020

Generated by: LCOV version 1.16